A lavender, acid-resistant asbestos.
Asbestos. Fibrous incombustible mineral composed of magnesium and calcium silicates with or without other elements. It is relatively inert chemically and used in thermal insulation and fireproofing. Inhalation of dust causes asbestosis and later lung and gastrointestinal neoplasms.
A type of asbestos that occurs in nature as the dihydrate of magnesium silicate. It exists in two forms: antigorite, a plated variety, and chrysotile, a fibrous variety. The latter makes up 95% of all asbestos products. (From Merck Index, 11th ed, p.893)
Asbestos, grunerite. A monoclinic amphibole form of asbestos having long fibers and a high iron content. It is used in insulation. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A class of asbestos that includes silicates of magnesium, iron, calcium, and sodium. The fibers are generally brittle and cannot be spun, but are more resistant to chemicals and heat than ASBESTOS, SERPENTINE. (From Hawley's Condensed Chemical Dictionary, 11th ed)
A tumor derived from mesothelial tissue (peritoneum, pleura, pericardium). It appears as broad sheets of cells, with some regions containing spindle-shaped, sarcoma-like cells and other regions showing adenomatous patterns. Pleural mesotheliomas have been linked to exposure to asbestos. (Dorland, 27th ed)
Long, pliable, cohesive natural or manufactured filaments of various lengths. They form the structure of some minerals. The medical significance lies in their potential ability to cause various types of PNEUMOCONIOSIS (e.g., ASBESTOSIS) after occupational or environmental exposure. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p708)
The thin serous membrane enveloping the lungs (LUNG) and lining the THORACIC CAVITY. Pleura consist of two layers, the inner visceral pleura lying next to the pulmonary parenchyma and the outer parietal pleura. Between the two layers is the PLEURAL CAVITY which contains a thin film of liquid.
'Pleural diseases' is a broad term referring to various medical conditions that affect the pleura, the thin, double-layered membrane surrounding the lungs, including inflammation (pleurisy), effusions (excess fluid buildup), thickening, or tumors, which may cause chest pain, coughing, and breathing difficulties.
A form of pneumoconiosis caused by inhalation of asbestos fibers which elicit potent inflammatory responses in the parenchyma of the lung. The disease is characterized by interstitial fibrosis of the lung, varying from scattered sites to extensive scarring of the alveolar interstitium.
Neoplasms of the thin serous membrane that envelopes the lungs and lines the thoracic cavity. Pleural neoplasms are exceedingly rare and are usually not diagnosed until they are advanced because in the early stages they produce no symptoms.
'Mining' in medical terminology is not a commonly used term, but it can refer to the process of extracting or excavating minerals or other resources from the earth, which can have health impacts such as respiratory diseases and hearing loss among workers in the mining industry.
Zeolites. A group of crystalline, hydrated alkali-aluminum silicates. They occur naturally in sedimentary and volcanic rocks, altered basalts, ores, and clay deposits. Some 40 known zeolite minerals and a great number of synthetic zeolites are available commercially. (From Merck Index, 11th ed)
A state in western Australia. Its capital is Perth. It was first visited by the Dutch in 1616 but the English took possession in 1791 and permanent colonization began in 1829. It was a penal settlement 1850-1888, became part of the colonial government in 1886, and was granted self government in 1890. (From Webster's New Geographical Dictionary, 1988, p1329)
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Finely powdered native hydrous magnesium silicate. It is used as a dusting powder, either alone or with starch or boric acid, for medicinal and toilet preparations. It is also an excipient and filler for pills, tablets, and for dusting tablet molds. (From Merck Index, 11th ed)
Diseases caused by factors involved in one's employment.
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included.
Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
Hard, amorphous, brittle, inorganic, usually transparent, polymerous silicate of basic oxides, usually potassium or sodium. It is used in the form of hard sheets, vessels, tubing, fibers, ceramics, beads, etc.
Supplies used in building.
Tumors or cancer of the LUNG.
Quartz (SiO2). A glassy or crystalline form of silicon dioxide. Many colored varieties are semiprecious stones. (From Grant & Hackh's Chemical Dictionary, 5th ed)
Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.
A process in which normal lung tissues are progressively replaced by FIBROBLASTS and COLLAGEN causing an irreversible loss of the ability to transfer oxygen into the bloodstream via PULMONARY ALVEOLI. Patients show progressive DYSPNEA finally resulting in death.
The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals.
A dark powdery deposit of unburned fuel residues, composed mainly of amorphous CARBON and some HYDROCARBONS, that accumulates in chimneys, automobile mufflers and other surfaces exposed to smoke. It is the product of incomplete combustion of carbon-rich organic fuels in low oxygen conditions. It is sometimes called lampblack or carbon black and is used in INK, in rubber tires, and to prepare CARBON NANOTUBES.
Tests of chemical substances and physical agents for mutagenic potential. They include microbial, insect, mammalian cell, and whole animal tests.
One or more layers of EPITHELIAL CELLS, supported by the basal lamina, which covers the inner or outer surfaces of the body.
F344 rats are an inbred strain of albino laboratory rats (Rattus norvegicus) that have been widely used in biomedical research due to their consistent and reliable genetic background, which facilitates the study of disease mechanisms and therapeutic interventions.
A type of TRANSMISSION ELECTRON MICROSCOPY in which the object is examined directly by an extremely narrow electron beam scanning the specimen point-by-point and using the reactions of the electrons that are transmitted through the specimen to create the image. It should not be confused with SCANNING ELECTRON MICROSCOPY.
Relating to the size of solids.
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.
Native, inorganic or fossilized organic substances having a definite chemical composition and formed by inorganic reactions. They may occur as individual crystals or may be disseminated in some other mineral or rock. (Grant & Hackh's Chemical Dictionary, 5th ed; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A nucleoside consisting of the base guanine and the sugar deoxyribose.
Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.
Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells.
Small polyhedral outpouchings along the walls of the alveolar sacs, alveolar ducts and terminal bronchioles through the walls of which gas exchange between alveolar air and pulmonary capillary blood takes place.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)

A risk assessment for exposure to grunerite asbestos (amosite) in an iron ore mine. (1/189)

The potential for health risks to humans exposed to the asbestos minerals continues to be a public health concern. Although the production and use of the commercial amphibole asbestos minerals-grunerite (amosite) and riebeckite (crocidolite)-have been almost completely eliminated from world commerce, special opportunities for potentially significant exposures remain. Commercially viable deposits of grunerite asbestos are very rare, but it can occur as a gangue mineral in a limited part of a mine otherwise thought asbestos-free. This report describes such a situation, in which a very localized seam of grunerite asbestos was identified in an iron ore mine. The geological occurrence of the seam in the ore body is described, as well as the mineralogical character of the grunerite asbestos. The most relevant epidemiological studies of workers exposed to grunerite asbestos are used to gauge the hazards associated with the inhalation of this fibrous mineral. Both analytical transmission electron microscopy and phase-contrast optical microscopy were used to quantify the fibers present in the air during mining in the area with outcroppings of grunerite asbestos. Analytical transmission electron microscopy and continuous-scan x-ray diffraction were used to determine the type of asbestos fiber present. Knowing the level of the miner's exposures, we carried out a risk assessment by using a model developed for the Environmental Protection Agency.  (+info)

Asbestos induces activator protein-1 transactivation in transgenic mice. (2/189)

Activation of activator protein (AP-1) by crocidolite asbestos was examined in vitro in a JB6 P+ cell line stably transfected with AP-1-luciferase reporter plasmid and in vivo using AP-1-luciferase reporter transgenic mice. In in vitro studies, crocidolite asbestos caused a dose- and time-dependent induction of AP-1 activation in cultured JB6 cells. The elevated AP-1 activity persisted for at least 48 h. Crocidolite asbestos also induced AP-1 transactivation in the pulmonary and bronchial tissues of transgenic mice. AP-1 activation was observed at 2 days after intratracheal instillation of the mice with asbestos. At 3 days postexposure, AP-1 activation was elevated 10-fold in the lung tissue and 22-fold in bronchiolar tissue as compared with their controls. The induction of AP-1 activity by asbestos appeared to be mediated through the activation of mitogen-activated protein kinase family members, including extracellular signal-regulating protein kinase, Erk1 and Erk2. Aspirin inhibited asbestos-induced AP-1 activity in JB6 cells. Pretreatment of the mice with aspirin also inhibited asbestos-induced AP-1 activation in bronchiolar tissue. The data suggest that further investigation of the role of AP-1 activation in asbestos-induced cell proliferation and carcinogenesis is warranted. In addition, investigation of the potential therapeutic benefits of aspirin in the prevention/amelioration of asbestos-induced cancer is justified.  (+info)

Asbestos exposure upregulates the adhesion of pleural leukocytes to pleural mesothelial cells via VCAM-1. (3/189)

This study was designed to assess the effects of in vitro and in vivo asbestos exposure on the adhesion of rat pleural leukocytes (RPLs) labeled with the fluorochrome calcein AM to rat pleural mesothelial cells (RPMCs). Exposure of RPMCs for 24 h to either crocidolite or chrysotile fibers (1.25-10 microgram/cm(2)) increased the adhesion of RPLs to RPMCs in a dose-dependent fashion, an effect that was potentiated by interleukin-1beta. These findings were not observed with nonfibrogenic carbonyl iron particles. Crocidolite and chrysotile plus interleukin-1beta also upregulated vascular cell adhesion molecule-1 mRNA and protein expression in RPMCs, and the binding of RPL to asbestos-treated RPMCs was abrogated by anti-vascular cell adhesion molecule-1 antibody. PRLs exposed by intermittent inhalation to crocidolite for 2 wk manifested significantly greater binding to RPMCs than did RPLs from sham-exposed animals. The ability of asbestos fibers to upregulate RPL adhesion to RPMCs may play a role in the induction and/or potentiation of asbestos-induced pleural injury.  (+info)

Asbestos-induced phosphorylation of epidermal growth factor receptor is linked to c-fos and apoptosis. (4/189)

We examined the mechanisms of interaction of crocidolite asbestos fibers with the epidermal growth factor (EGF) receptor (EGFR) and the role of the EGFR-extracellular signal-regulated kinase (ERK) signaling pathway in early-response protooncogene (c-fos/c-jun) expression and apoptosis induced by asbestos in rat pleural mesothelial (RPM) cells. Asbestos fibers, but not the nonfibrous analog riebeckite, abolished binding of EGF to the EGFR. This was not due to a direct interaction of fibers with ligand, inasmuch as binding studies using fibers and EGF in the absence of membranes showed that EGF did not adsorb to the surface of asbestos fibers. Exposure of RPM cells to asbestos caused a greater than twofold increase in steady-state message and protein levels of EGFR (P < 0.05). The tyrphostin AG-1478, which inhibits the tyrosine kinase activity of the EGFR, but not the tyrphostin A-10, which does not affect EGFR activity, significantly ameliorated asbestos-induced increases in mRNA levels of c-fos but not of c-jun. Pretreatment of RPM cells with AG-1478 significantly reduced apoptosis in cells exposed to asbestos. Our findings suggest that asbestos-induced binding to EGFR initiates signaling pathways responsible for increased expression of the protooncogene c-fos and the development of apoptosis. The ability to block asbestos-induced elevations in c-fos mRNA levels and apoptosis by small-molecule inhibitors of EGFR phosphorylation may have therapeutic implications in asbestos-related diseases.  (+info)

Role of oxyradicals in mutagenicity and DNA damage induced by crocidolite asbestos in mammalian cells. (5/189)

Crocidolite, one of the most carcinogenic forms of asbestos, is mutagenic in cultured mammalian cells when assayed using a system that can detect multilocus deletions. In the present study, we examined the effect of buthionine sulfoximine (BSO) on mutation frequency and the formation of 8-hydroxydeoxyguanosine (8-OHdG) in human-hamster hybrid (A(L)) cells induced by crocidolite fibers in an attempt to determine the role of oxyradicals in mediating fiber mutagenesis. BSO, a competitive inhibitor of the enzyme gamma-glutamyl cysteine synthetase, depleted nonprotein sulfhydryls to <5% of control within 24 h at a nonmutagenic dose of 25 microM. In cells pretreated with BSO for 24 h, the mutation yield at the CD59 locus induced by a 4 microg/cm2 dose of crocidolite fibers was increased by more than 3-fold (P < 0.05). Using immunoperoxidase staining with a monoclonal antibody specific for 8-OHdG, we demonstrated that crocidolite fibers induced a dose-dependent increase in oxidative DNA damage in A(L) cells. Furthermore, addition of DMSO, a well-established hydroxyl radical (OH*) scavenger, dramatically suppressed 8-OHdG induction (P < 0.005). Our results definitely demonstrate that reactive oxygen species mediate fiber-induced DNA damage mutagenesis in A(L) cells in a concentration-dependent manner.  (+info)

Dielectric changes in membrane properties and cell interiors of human mesothelial cells in vitro after crocidolite asbestos exposure. (6/189)

Asbestos induces cytogenetic and genotoxic effects in cultured cell lines in vitro. For further investigations of the fiber-induced cellular changes, electrorotation (ROT) measurements can be used to determine early changes of surface properties and dielectric cellular changes. In the present study, human mesothelial cells (HMC) were exposed to nontoxic concentrations of crocidolite asbestos (1 microg/cm(2)) for 12, 24, 30, 50, and 72 hr, and were investigated for changes in dielectric properties, morphologic and biochemical changes using ROT measurements, electron microscopy, and flow cytometry, respectively. The results of ROT measurements revealed slightly increased internal conductivity and decreased membrane conductance of HMC during the first 12 hr of exposure to crocidolite. This may be due to functional changes of ion channels of the cellular membrane. However, after exposures of >= 30 hr, reduced internal conductivity and increased membrane conductance of HMC occurred. These effects may be caused by permeabilization of the cell membrane and the leakage of ions into the surrounding medium. The membrane capacitance of HMC is always decreased during exposure of cells to crocidolite fibers. This decreased membrane capacitance may result from the observed reduction in the number of microvilli and from the shrinkage of cells as observed by electron microscopy and flow cytometry. Changes in composition of the plasma membrane were also observed after the labeling of phosphatidylserines (PS) on the cell surface. These observed changes can be related to apoptotic events. Whereas during the first 50 hr of exposure only a small number of HMC with increased exposure of PS on the cell surface was detected by flow cytometry, the dielectric properties of HMC showed marked changes during this time. Our results show that surface property changes of the cellular membrane of HMC as well as interior dielectric changes occur after the exposure of cells to crocidolite fibers. The observed changes are discussed in terms of complex combined cellular effects after amphibole asbestos exposure.  (+info)

Mesothelial cell apoptosis is confirmed in vivo by morphological change in cytokeratin distribution. (7/189)

Apoptosis of mesothelial cells has been demonstrated in vitro but not in vivo. To identify apoptotic pleural cells as mesothelial, we used cytokeratin as a marker and found a striking spheroid, aggregated appearance of cytokeratin in apparently apoptotic mesothelial cells. In in vitro studies, we found that the aggregated cytokeratin pattern correlated with apoptosis in primary mesothelial cells from mice, rabbits, and humans and was not seen with necrosis. In in vivo studies in mice, we then used this cytokeratin pattern to identify and quantitate apoptotic mesothelial cells. Apoptotic mesothelial cells were best harvested by pleural lavage, indicating that they were loosely adherent or nonadherent. Instillation of RPMI 1640 medium or wollastonite for 24 h induced apoptosis in 0.1 +/- 0. 1 (SE) and 1.0 +/- 0.7%, respectively, of all mesothelial cells recovered, whereas instillation of known apoptotic stimuli, crocidolite asbestos (25 microg) for 24 h or actinomycin D plus murine tumor necrosis factor-alpha for 12 h, induced apoptosis in 5. 1 +/- 0.5 and 22.4 +/- 4.5%, respectively (significantly greater than in control experiments, P < 0.05). By analysis of cytokeratin staining, mesothelial cell apoptosis has been confirmed in vivo.  (+info)

Inhaled crocidolite mutagenicity in lung DNA. (8/189)

We used transgenic mice carrying the lacI reporter gene to study the mutagenesis potential of asbestos crocidolite. The animals were exposed by nose-only inhalation to an aerosol containing 5.75 mg/m(3) crocidolite dust for 6 hr/day and 5 consecutive days. After 1, 4, and 12 weeks, we examined four end points: the cytology of bronchoalveolar lavage, the lung load of crocidolite, the hydrophobic DNA adducts, and the mutations in the lacI reporter gene. Twelve weeks after exposure, nearly 10% of the inhaled fibers remained in the lung (227 +/- 103 ng/mg lung). There was evidence of a typical inflammatory response consisting of multinucleate macrophages at weeks 4 and 12, whereas immediately after the exposure, we observed numerous polymorphonuclear neutrophils. The mutant frequency significatively increased during the fourth week after the exposure: 13.5 [time] 10(-5) in the exposed group versus 6. 9 10(-5) in the control group. The induction factor, defined by the ratio of checked mutants of exposed mice to checked mutants of control mice, was 1.96. The mutation spectrum of control lung DNA and exposed lung DNA was similar, suggesting the possible involvement of a DNA repair decrease in crocidolite-treated animals. We used the (32)P-postlabeling method and did not detect any increase of either 5 mC or bulky adduct in treated mice. This is the first study that demonstrates asbestos mutagenicity in vivo after a nose-only inhalation.  (+info)

Crocidolite is a type of asbestos, which is a naturally occurring fibrous mineral that was widely used in various industrial and commercial applications due to its heat resistance, insulating properties, and strength. Crocidolite, also known as blue asbestos, is made up of fine, straight fibers that can be easily inhaled and become lodged in the lungs.

Prolonged exposure to crocidolite fibers has been linked to serious health problems, including lung cancer, mesothelioma (a rare form of cancer that affects the lining of the lungs and abdomen), and asbestosis (a chronic lung disease characterized by scarring and inflammation of the lung tissue). As a result, the use of crocidolite and other forms of asbestos has been largely banned in many countries.

It is important to note that there is no safe level of exposure to asbestos, and any contact with this mineral should be avoided. If you suspect that you have been exposed to asbestos, it is recommended that you seek medical advice from a healthcare professional.

Asbestos is a group of naturally occurring mineral fibers that are resistant to heat, chemical reactions, and electrical currents. There are six types of asbestos, but the most common ones are chrysotile, amosite, and crocidolite. Asbestos has been widely used in various construction materials, such as roofing shingles, ceiling and floor tiles, paper products, and cement products.

Exposure to asbestos can cause serious health problems, including lung cancer, mesothelioma (a rare form of cancer that affects the lining of the lungs, heart, or abdomen), and asbestosis (a chronic lung disease characterized by scarring of the lung tissue). These health risks are related to the inhalation of asbestos fibers, which can become lodged in the lungs and cause inflammation and scarring over time.

As a result, the use of asbestos has been heavily regulated in many countries, and its use is banned in several others. Despite these regulations, asbestos remains a significant public health concern due to the large number of buildings and products that still contain it.

'Asbestos, serpentine' is a type of asbestos mineral that belongs to the serpentine group of minerals. The serpentine group of minerals is characterized by its sheet or layered structure, in which each silicate tetrahedron shares three oxygen atoms with adjacent tetrahedra, forming a continuous two-dimensional sheet.

The most common type of asbestos mineral in the serpentine group is chrysotile, also known as white asbestos or serpentine asbestos. Chrysotile fibers are curly and flexible, which makes them easier to weave into textiles and other materials. As a result, chrysotile has been widely used in a variety of industrial and commercial applications, such as insulation, roofing, flooring, and cement products.

However, exposure to chrysotile fibers has been linked to several serious health problems, including lung cancer, mesothelioma, and asbestosis. As a result, the use of chrysotile and other types of asbestos has been banned or restricted in many countries around the world.

Amosite is a type of asbestos also known as "brown asbestos." It is a fibrous mineral that was commonly used in insulation and other building materials due to its heat resistance and fireproof properties. Prolonged exposure to amosite fibers can cause serious health issues, including lung cancer, mesothelioma, and asbestosis. The use of amosite has been banned in many countries due to these health risks.

Amphibole asbestos is a type of asbestos mineral that includes several subtypes such as tremolite, actinolite, and crocidolite. These minerals have double-chain structures and are typically composed of iron and magnesium ions. Amphibole asbestos fibers are straight or slightly curved, and they are more brittle than chrysotile (white asbestos) fibers.

Amphibole asbestos is known to be more hazardous to human health than chrysotile asbestos because it is more easily inhaled and can penetrate deeper into the lungs. Amphibole asbestos has been linked to an increased risk of lung cancer, mesothelioma, and other respiratory diseases. Its use has been banned or restricted in many countries due to these health concerns.

Mesothelioma is a rare and aggressive form of cancer that develops in the mesothelial cells, which are the thin layers of tissue that cover many of the internal organs. The most common site for mesothelioma to occur is in the pleura, the membrane that surrounds the lungs. This type is called pleural mesothelioma. Other types include peritoneal mesothelioma (which occurs in the lining of the abdominal cavity) and pericardial mesothelioma (which occurs in the lining around the heart).

Mesothelioma is almost always caused by exposure to asbestos, a group of naturally occurring minerals that were widely used in construction, insulation, and other industries because of their heat resistance and insulating properties. When asbestos fibers are inhaled or ingested, they can become lodged in the mesothelium, leading to inflammation, scarring, and eventually cancerous changes in the cells.

The symptoms of mesothelioma can take many years to develop after exposure to asbestos, and they may include chest pain, coughing, shortness of breath, fatigue, and weight loss. Treatment options for mesothelioma depend on the stage and location of the cancer, but may include surgery, radiation therapy, chemotherapy, or a combination of these approaches. Unfortunately, the prognosis for mesothelioma is often poor, with a median survival time of around 12-18 months after diagnosis.

Mineral fibers are tiny, elongated particles that occur naturally in the environment. They are made up of minerals such as silica and are often found in rocks and soil. Some mineral fibers, like asbestos, have been widely used in various industries for their heat resistance, insulating properties, and strength. However, exposure to certain types of mineral fibers, particularly asbestos, has been linked to serious health conditions such as lung cancer, mesothelioma, and asbestosis.

Mineral fibers are defined by their physical characteristics, including their length, width, and aspect ratio (the ratio of the fiber's length to its width). According to the International Agency for Research on Cancer (IARC), mineral fibers with a length of at least 5 micrometers, a width of no more than 3 micrometers, and an aspect ratio of at least 3:1 are considered to be "respirable," meaning they can be inhaled and potentially become lodged in the lungs.

It's worth noting that not all mineral fibers are created equal when it comes to health risks. Asbestos, for example, is a known human carcinogen, while other mineral fibers such as fiberglass and rock wool are considered less hazardous, although they can still cause respiratory irritation and other health problems with prolonged exposure.

The pleura is the medical term for the double-layered serous membrane that surrounds the lungs and lines the inside of the chest cavity. The two layers of the pleura are called the parietal pleura, which lines the chest cavity, and the visceral pleura, which covers the surface of the lungs.

The space between these two layers is called the pleural cavity, which contains a small amount of lubricating fluid that allows the lungs to move smoothly within the chest during breathing. The main function of the pleura is to protect the lungs and facilitate their movement during respiration.

Pleural diseases refer to conditions that affect the pleura, which is the thin, double-layered membrane that surrounds the lungs and lines the inside of the chest wall. The space between these two layers contains a small amount of fluid that helps the lungs move smoothly during breathing. Pleural diseases can cause inflammation, infection, or abnormal collections of fluid in the pleural space, leading to symptoms such as chest pain, cough, and difficulty breathing.

Some common examples of pleural diseases include:

1. Pleurisy: Inflammation of the pleura that causes sharp chest pain, often worsened by breathing or coughing.
2. Pleural effusion: An abnormal accumulation of fluid in the pleural space, which can be caused by various underlying conditions such as heart failure, pneumonia, cancer, or autoimmune disorders.
3. Empyema: A collection of pus in the pleural space, usually resulting from a bacterial infection.
4. Pleural thickening: Scarring and hardening of the pleura, which can restrict lung function and cause breathlessness.
5. Mesothelioma: A rare form of cancer that affects the pleura, often caused by exposure to asbestos.
6. Pneumothorax: A collection of air in the pleural space, which can result from trauma or a rupture of the lung tissue.

Proper diagnosis and treatment of pleural diseases require a thorough evaluation by a healthcare professional, often involving imaging tests such as chest X-rays or CT scans, as well as fluid analysis or biopsy if necessary.

Asbestosis is a chronic lung disease that is caused by the inhalation of asbestos fibers. It is characterized by scarring (fibrosis) of the lung tissue, which can lead to symptoms such as shortness of breath, coughing, and chest pain. The severity of the disease can range from mild to severe, and it is often progressive, meaning that it tends to worsen over time. Asbestosis is not a malignant condition, but it can increase the risk of developing lung cancer or mesothelioma, which are forms of cancer that are associated with asbestos exposure. The disease is typically diagnosed through a combination of medical history, physical examination, and imaging tests such as chest X-rays or CT scans. There is no cure for asbestosis, but treatment can help to manage the symptoms and slow the progression of the disease.

Pleural neoplasms refer to abnormal growths or tumors that develop in the pleura, which is the thin, double layered membrane that surrounds the lungs and lines the inside of the chest wall. These neoplasms can be benign (non-cancerous) or malignant (cancerous).

Malignant pleural neoplasms are often associated with lung cancer, mesothelioma, or metastasis from other types of cancer. They can cause symptoms such as chest pain, cough, shortness of breath, and weight loss. Diagnosis typically involves imaging tests like X-rays or CT scans, followed by biopsy to confirm the type of tumor. Treatment options may include surgery, radiation therapy, chemotherapy, or a combination of these approaches.

I'm sorry for any confusion, but "mining" is not a term that has a widely accepted medical definition. It is most commonly associated with the extraction of minerals from the earth in the field of geology and mining engineering. If you have any questions related to health or medicine, I would be happy to try to help answer those for you!

Zeolites are not typically a subject of medical definition, as they are naturally occurring or synthetically produced minerals used in various industrial applications. They are microporous, aluminosilicate minerals with a crystal-like structure, composed of aluminum, silicon, and oxygen tetrahedra. These minerals have a negative charge and can exchange positively charged ions, making them useful for water purification, odor control, and as catalysts in chemical reactions.

However, there is some research into the potential use of zeolites in medical applications, such as drug delivery systems or as adsorbents to remove toxins from the body. In these contexts, the definition of zeolites would be similar to their industrial definition.

I'm sorry for any confusion, but "Western Australia" is not a medical term. It is the largest state or territory in Australia by area, covering the entire western third of the country. If you have any questions about medical terms or concepts, I would be happy to help with those!

Occupational exposure refers to the contact of an individual with potentially harmful chemical, physical, or biological agents as a result of their job or occupation. This can include exposure to hazardous substances such as chemicals, heavy metals, or dusts; physical agents such as noise, radiation, or ergonomic stressors; and biological agents such as viruses, bacteria, or fungi.

Occupational exposure can occur through various routes, including inhalation, skin contact, ingestion, or injection. Prolonged or repeated exposure to these hazards can increase the risk of developing acute or chronic health conditions, such as respiratory diseases, skin disorders, neurological damage, or cancer.

Employers have a legal and ethical responsibility to minimize occupational exposures through the implementation of appropriate control measures, including engineering controls, administrative controls, personal protective equipment, and training programs. Regular monitoring and surveillance of workers' health can also help identify and prevent potential health hazards in the workplace.

Talc is a mineral composed of hydrated magnesium silicate with the chemical formula H2Mg3(SiO3)4 or Mg3Si4O10(OH)2. It is widely used in various industries including pharmaceuticals and cosmetics due to its softness, lubricity, and ability to absorb moisture. In medical contexts, talc is often found in powdered products used for personal hygiene or as a drying agent in medical dressings. However, it should be noted that the use of talcum powder in the genital area has been linked to an increased risk of ovarian cancer, although the overall evidence remains controversial.

Occupational diseases are health conditions or illnesses that occur as a result of exposure to hazards in the workplace. These hazards can include physical, chemical, and biological agents, as well as ergonomic factors and work-related psychosocial stressors. Examples of occupational diseases include respiratory illnesses caused by inhaling dust or fumes, hearing loss due to excessive noise exposure, and musculoskeletal disorders caused by repetitive movements or poor ergonomics. The development of an occupational disease is typically related to the nature of the work being performed and the conditions in which it is carried out. It's important to note that these diseases can be prevented or minimized through proper risk assessment, implementation of control measures, and adherence to safety regulations.

A lung is a pair of spongy, elastic organs in the chest that work together to enable breathing. They are responsible for taking in oxygen and expelling carbon dioxide through the process of respiration. The left lung has two lobes, while the right lung has three lobes. The lungs are protected by the ribcage and are covered by a double-layered membrane called the pleura. The trachea divides into two bronchi, which further divide into smaller bronchioles, leading to millions of tiny air sacs called alveoli, where the exchange of gases occurs.

Carcinogens are agents (substances or mixtures of substances) that can cause cancer. They may be naturally occurring or man-made. Carcinogens can increase the risk of cancer by altering cellular DNA, disrupting cellular function, or promoting cell growth. Examples of carcinogens include certain chemicals found in tobacco smoke, asbestos, UV radiation from the sun, and some viruses.

It's important to note that not all exposures to carcinogens will result in cancer, and the risk typically depends on factors such as the level and duration of exposure, individual genetic susceptibility, and lifestyle choices. The International Agency for Research on Cancer (IARC) classifies carcinogens into different groups based on the strength of evidence linking them to cancer:

Group 1: Carcinogenic to humans
Group 2A: Probably carcinogenic to humans
Group 2B: Possibly carcinogenic to humans
Group 3: Not classifiable as to its carcinogenicity to humans
Group 4: Probably not carcinogenic to humans

This information is based on medical research and may be subject to change as new studies become available. Always consult a healthcare professional for medical advice.

In medical terms, "dust" is not defined as a specific medical condition or disease. However, generally speaking, dust refers to small particles of solid matter that can be found in the air and can come from various sources, such as soil, pollen, hair, textiles, paper, or plastic.

Exposure to certain types of dust, such as those containing allergens, chemicals, or harmful pathogens, can cause a range of health problems, including respiratory issues like asthma, allergies, and lung diseases. Prolonged exposure to certain types of dust, such as silica or asbestos, can even lead to serious conditions like silicosis or mesothelioma.

Therefore, it is important for individuals who work in environments with high levels of dust to take appropriate precautions, such as wearing masks and respirators, to minimize their exposure and reduce the risk of health problems.

I'm sorry for any confusion, but "Glass" is not a medical term. Glass is a non-crystalline amorphous solid that is often transparent and has various uses in everyday life, including medical devices and equipment. If you have any questions related to medical terminology or concepts, please provide them, and I'll be happy to help.

Construction materials are substances or components that are used in the building and construction of infrastructure, such as buildings, roads, bridges, and other structures. These materials can be naturally occurring, like wood, stone, and clay, or they can be manufactured, like steel, concrete, and glass. The choice of construction material depends on various factors, including the project's requirements, structural strength, durability, cost, and sustainability.

In a medical context, construction materials may refer to the substances used in the construction or fabrication of medical devices, equipment, or furniture. These materials must meet strict regulations and standards to ensure they are safe, biocompatible, and do not pose a risk to patients or healthcare workers. Examples of medical construction materials include surgical-grade stainless steel, medical-grade plastics, and radiation-shielding materials used in the construction of medical imaging equipment enclosures.

Lung neoplasms refer to abnormal growths or tumors in the lung tissue. These tumors can be benign (non-cancerous) or malignant (cancerous). Malignant lung neoplasms are further classified into two main types: small cell lung carcinoma and non-small cell lung carcinoma. Lung neoplasms can cause symptoms such as cough, chest pain, shortness of breath, and weight loss. They are often caused by smoking or exposure to secondhand smoke, but can also occur due to genetic factors, radiation exposure, and other environmental carcinogens. Early detection and treatment of lung neoplasms is crucial for improving outcomes and survival rates.

I'm sorry for any confusion, but "quartz" is not a medical term. Quartz is a mineral that is one of the most common minerals on Earth. It is found in many different types of rocks and is made up of silicon dioxide (SiO2). It is often used in electronics and watches because of its piezoelectric properties, which means it can generate an electric charge when subjected to pressure or stress.

It does not have any direct relation with medical field, although there are some Quartz based equipment like quartz crystal microbalance (QCM) sensors that are used in medical research for the detection of biomolecules and pathogens.

Silicon dioxide is not a medical term, but a chemical compound with the formula SiO2. It's commonly known as quartz or sand and is not something that would typically have a medical definition. However, in some cases, silicon dioxide can be used in pharmaceutical preparations as an excipient (an inactive substance that serves as a vehicle or medium for a drug) or as a food additive, often as an anti-caking agent.

In these contexts, it's important to note that silicon dioxide is considered generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA). However, exposure to very high levels of respirable silica dust, such as in certain industrial settings, can increase the risk of lung disease, including silicosis.

Pulmonary fibrosis is a specific type of lung disease that results from the thickening and scarring of the lung tissues, particularly those in the alveoli (air sacs) and interstitium (the space around the air sacs). This scarring makes it harder for the lungs to properly expand and transfer oxygen into the bloodstream, leading to symptoms such as shortness of breath, coughing, fatigue, and eventually respiratory failure. The exact cause of pulmonary fibrosis can vary, with some cases being idiopathic (without a known cause) or related to environmental factors, medications, medical conditions, or genetic predisposition.

Environmental exposure refers to the contact of an individual with any chemical, physical, or biological agent in the environment that can cause a harmful effect on health. These exposures can occur through various pathways such as inhalation, ingestion, or skin contact. Examples of environmental exposures include air pollution, water contamination, occupational chemicals, and allergens. The duration and level of exposure, as well as the susceptibility of the individual, can all contribute to the risk of developing an adverse health effect.

"Soot" is not typically considered a medical term, but it does have relevance to public health and medicine due to its potential health effects. Soot is a general term for the fine black or brown particles that are produced when materials burn, such as in fires, industrial processes, or vehicle emissions. It is made up of a complex mixture of substances, including carbon, metals, and other organic compounds.

Inhaling soot can lead to respiratory problems, cardiovascular issues, and cancer. This is because the tiny particles can penetrate deep into the lungs and even enter the bloodstream, causing inflammation and damage to tissues. Prolonged exposure or high concentrations of soot can have more severe health effects, particularly in vulnerable populations such as children, the elderly, and those with pre-existing medical conditions.

Mutagenicity tests are a type of laboratory assays used to identify agents that can cause genetic mutations. These tests detect changes in the DNA of organisms, such as bacteria, yeast, or mammalian cells, after exposure to potential mutagens. The most commonly used mutagenicity test is the Ames test, which uses a strain of Salmonella bacteria that is sensitive to mutagens. If a chemical causes an increase in the number of revertants (reversion to the wild type) in the bacterial population, it is considered to be a mutagen. Other tests include the mouse lymphoma assay and the chromosomal aberration test. These tests are used to evaluate the potential genotoxicity of chemicals and are an important part of the safety evaluation process for new drugs, chemicals, and other substances.

Epithelium is the tissue that covers the outer surface of the body, lines the internal cavities and organs, and forms various glands. It is composed of one or more layers of tightly packed cells that have a uniform shape and size, and rest on a basement membrane. Epithelial tissues are avascular, meaning they do not contain blood vessels, and are supplied with nutrients by diffusion from the underlying connective tissue.

Epithelial cells perform a variety of functions, including protection, secretion, absorption, excretion, and sensation. They can be classified based on their shape and the number of cell layers they contain. The main types of epithelium are:

1. Squamous epithelium: composed of flat, scalelike cells that fit together like tiles on a roof. It forms the lining of blood vessels, air sacs in the lungs, and the outermost layer of the skin.
2. Cuboidal epithelium: composed of cube-shaped cells with equal height and width. It is found in glands, tubules, and ducts.
3. Columnar epithelium: composed of tall, rectangular cells that are taller than they are wide. It lines the respiratory, digestive, and reproductive tracts.
4. Pseudostratified epithelium: appears stratified or layered but is actually made up of a single layer of cells that vary in height. The nuclei of these cells appear at different levels, giving the tissue a stratified appearance. It lines the respiratory and reproductive tracts.
5. Transitional epithelium: composed of several layers of cells that can stretch and change shape to accommodate changes in volume. It is found in the urinary bladder and ureters.

Epithelial tissue provides a barrier between the internal and external environments, protecting the body from physical, chemical, and biological damage. It also plays a crucial role in maintaining homeostasis by regulating the exchange of substances between the body and its environment.

F344 is a strain code used to designate an outbred stock of rats that has been inbreeded for over 100 generations. The F344 rats, also known as Fischer 344 rats, were originally developed at the National Institutes of Health (NIH) and are now widely used in biomedical research due to their consistent and reliable genetic background.

Inbred strains, like the F344, are created by mating genetically identical individuals (siblings or parents and offspring) for many generations until a state of complete homozygosity is reached, meaning that all members of the strain have identical genomes. This genetic uniformity makes inbred strains ideal for use in studies where consistent and reproducible results are important.

F344 rats are known for their longevity, with a median lifespan of around 27-31 months, making them useful for aging research. They also have a relatively low incidence of spontaneous tumors compared to other rat strains. However, they may be more susceptible to certain types of cancer and other diseases due to their inbred status.

It's important to note that while F344 rats are often used as a standard laboratory rat strain, there can still be some genetic variation between individual animals within the same strain, particularly if they come from different suppliers or breeding colonies. Therefore, it's always important to consider the source and history of any animal model when designing experiments and interpreting results.

Scanning transmission electron microscopy (STEM) is a type of electron microscopy that uses a focused beam of electrons to transmit through a specimen and create an image based on the interactions between the electrons and the sample. In STEM, the electron beam is scanned across the sample in a raster pattern, similar to how a television or computer monitor displays an image. As the electrons pass through the sample, they interact with the atoms in the material, causing scattering and energy loss. By detecting these scattered and energy-loss electrons, a high-resolution image of the sample can be created.

Scanning transmission electron microscopy is particularly useful for imaging thin specimens with high resolution, making it an important tool in materials science, biology, and other fields where detailed information about the structure and composition of materials is needed. The technique can provide information about the crystal structure, chemical composition, and electronic properties of materials at the atomic level.

Overall, scanning transmission electron microscopy is a powerful tool for characterizing materials and understanding their properties at the nanoscale and atomic level.

In the context of medical and health sciences, particle size generally refers to the diameter or dimension of particles, which can be in the form of solid particles, droplets, or aerosols. These particles may include airborne pollutants, pharmaceutical drugs, or medical devices such as nanoparticles used in drug delivery systems.

Particle size is an important factor to consider in various medical applications because it can affect the behavior and interactions of particles with biological systems. For example, smaller particle sizes can lead to greater absorption and distribution throughout the body, while larger particle sizes may be filtered out by the body's natural defense mechanisms. Therefore, understanding particle size and its implications is crucial for optimizing the safety and efficacy of medical treatments and interventions.

Electron microscopy (EM) is a type of microscopy that uses a beam of electrons to create an image of the sample being examined, resulting in much higher magnification and resolution than light microscopy. There are several types of electron microscopy, including transmission electron microscopy (TEM), scanning electron microscopy (SEM), and reflection electron microscopy (REM).

In TEM, a beam of electrons is transmitted through a thin slice of the sample, and the electrons that pass through the sample are focused to form an image. This technique can provide detailed information about the internal structure of cells, viruses, and other biological specimens, as well as the composition and structure of materials at the atomic level.

In SEM, a beam of electrons is scanned across the surface of the sample, and the electrons that are scattered back from the surface are detected to create an image. This technique can provide information about the topography and composition of surfaces, as well as the structure of materials at the microscopic level.

REM is a variation of SEM in which the beam of electrons is reflected off the surface of the sample, rather than scattered back from it. This technique can provide information about the surface chemistry and composition of materials.

Electron microscopy has a wide range of applications in biology, medicine, and materials science, including the study of cellular structure and function, disease diagnosis, and the development of new materials and technologies.

In the context of nutrition and health, minerals are inorganic elements that are essential for various bodily functions, such as nerve impulse transmission, muscle contraction, maintaining fluid and electrolyte balance, and bone structure. They are required in small amounts compared to macronutrients (carbohydrates, proteins, and fats) and are obtained from food and water.

Some of the major minerals include calcium, phosphorus, magnesium, sodium, potassium, and chloride, while trace minerals or microminerals are required in even smaller amounts and include iron, zinc, copper, manganese, iodine, selenium, and fluoride.

It's worth noting that the term "minerals" can also refer to geological substances found in the earth, but in medical terminology, it specifically refers to the essential inorganic elements required for human health.

Deoxyguanosine is a chemical compound that is a component of DNA (deoxyribonucleic acid), one of the nucleic acids. It is a nucleoside, which is a molecule consisting of a sugar (in this case, deoxyribose) and a nitrogenous base (in this case, guanine). Deoxyguanosine plays a crucial role in the structure and function of DNA, as it pairs with deoxycytidine through hydrogen bonding to form a rung in the DNA double helix. It is involved in the storage and transmission of genetic information.

Scanning electron microscopy (SEM) is a type of electron microscopy that uses a focused beam of electrons to scan the surface of a sample and produce a high-resolution image. In SEM, a beam of electrons is scanned across the surface of a specimen, and secondary electrons are emitted from the sample due to interactions between the electrons and the atoms in the sample. These secondary electrons are then detected by a detector and used to create an image of the sample's surface topography. SEM can provide detailed images of the surface of a wide range of materials, including metals, polymers, ceramics, and biological samples. It is commonly used in materials science, biology, and electronics for the examination and analysis of surfaces at the micro- and nanoscale.

Epithelial cells are types of cells that cover the outer surfaces of the body, line the inner surfaces of organs and glands, and form the lining of blood vessels and body cavities. They provide a protective barrier against the external environment, regulate the movement of materials between the internal and external environments, and are involved in the sense of touch, temperature, and pain. Epithelial cells can be squamous (flat and thin), cuboidal (square-shaped and of equal height), or columnar (tall and narrow) in shape and are classified based on their location and function.

Pulmonary alveoli, also known as air sacs, are tiny clusters of air-filled pouches located at the end of the bronchioles in the lungs. They play a crucial role in the process of gas exchange during respiration. The thin walls of the alveoli, called alveolar membranes, allow oxygen from inhaled air to pass into the bloodstream and carbon dioxide from the bloodstream to pass into the alveoli to be exhaled out of the body. This vital function enables the lungs to supply oxygen-rich blood to the rest of the body and remove waste products like carbon dioxide.

An encyclopedia is a comprehensive reference work containing articles on various topics, usually arranged in alphabetical order. In the context of medicine, a medical encyclopedia is a collection of articles that provide information about a wide range of medical topics, including diseases and conditions, treatments, tests, procedures, and anatomy and physiology. Medical encyclopedias may be published in print or electronic formats and are often used as a starting point for researching medical topics. They can provide reliable and accurate information on medical subjects, making them useful resources for healthcare professionals, students, and patients alike. Some well-known examples of medical encyclopedias include the Merck Manual and the Stedman's Medical Dictionary.

Crocidolite (blue asbestos), commonly used in high temperature applications. HSE Web Site - Control of Asbestos Regulations ... HSE , The Control of Asbestos Regulations 2006 Legislation.gov.uk , The Control of Asbestos Regulations 2006 "Amiantus Asbestos ... the control of asbestos at work and asbestos licensing. They prohibited the import, supply and use of all types of asbestos and ... Although Asbestos can be safe if the material is kept in good condition and undisturbed, if damaged asbestos fibres could ...
"Crocidolite asbestos fibers in smoke from original Kent cigarettes". Cancer Research. 55 (11): 2232-5. PMID 7757969. "Asbestos ... Asbestos disasters, Asbestos, British American Tobacco brands, Products introduced in 1952, R. J. Reynolds Tobacco Company ... Lorillard quietly changed the filter material from asbestos to the more common cellulose acetate in mid 1956. Kent continued to ... Myron Levin (November 2013). "Lawsuits continue over asbestos in Kent cigarette filters". Greensboro.com. Retrieved 3 January ...
Amosite and crocidolite are considered the most hazardous asbestos fiber types; however, chrysotile asbestos has also produced ... Asbestos-related diseases have been diagnosed in asbestos workers' family members, and in residents who live close to asbestos ... Asbestos is widely used in roofing materials, mainly corrugated asbestos cement roof sheets and asbestos shingles sometimes ... According to OSHA, "there is no 'safe' level of asbestos exposure for any type of asbestos fiber. Asbestos exposures as short ...
Koegas lies at the southern end of the Cape Province crocidolite (blue asbestos) deposit (also known as the Asbestos Mountains ... The Koegas mine was a crocidolite (blue asbestos) mine in Northern Cape, South Africa. It lies near to the town of Prieska and ... In 1925 it purchased an asbestos mine at Penge, Limpopo. Demand for asbestos products crashed during the Great Depression, ... white asbestos) deposits. The deposits at Koegas are overlain by mudstone. The mine was opened by the Cape Asbestos Company ...
Unknown date The first Crocidolite (Blue Asbestos) mine is opened near Prieska. 16 May - Clement Martyn Doke, South African ...
Crocidolite asbestos was mined in South Africa, Bolivia, and Wittenoom, Western Australia. Bolivian crocidolite was used in ... The fibrous forms of riebeckite are known as crocidolite and are one of the six recognised types of asbestos. Often referred to ... It occurs in banded iron formations as the asbestiform variety crocidolite (blue asbestos). It occurs in association with ... The association between blue asbestos and mesothelioma was established by J. C. Wager, C. A. Sleggs, and P. Marchand by 1960. ...
A classic example is tiger's eye quartz, crocidolite asbestos replaced by silica. While quartz typically forms prismatic ( ... elongate, prism-like) crystals, in tiger's eye the original fibrous habit of crocidolite is preserved. [better source needed][ ...
Block B, Block C, and Block D were contaminated with friable crocidolite asbestos. As such, the ACT Government employed Robson ...
"Crocidolite asbestos and SV40 are cocarcinogens in human mesothelial cells and in causing mesothelioma in hamsters". ... SV40 may act as a co-carcinogen with crocidolite asbestos to cause mesothelioma. The mechanism may involve suppression of the ...
Existence of crocidolite (blue asbestos) in the Hamersley Range has been known since 1915. In 1917 crocidolite was discovered ... "Wittenoom Tragedy - Asbestos Diseases Society of Australia Inc". www.asbestosdiseases.org.au/. Retrieved 8 June 2021. "Rio ... Wittenoom was Australia's only blue asbestos mining town. A cave in Juukan Gorge, about 60 kilometres (37 mi) from Mt Tom Price ... Wittenoom, Australia's only blue asbestos mining town, Hamersley Range, Western Australia, 3] [picture]". Trove. Retrieved 8 ...
Wittenoom in Western Australia was the country's only source of blue asbestos (crocidolite) in the 1950s and 60s. The mine was ... Pomfret, North West is an abandoned asbestos mining town in the North West province. In the northeast of Sudan lies the old ... Diepgezet is an abandoned asbestos mining town in Mpumalanga. It was transferred to tribal land and renamed to Msauli. ... shut down in 1966, and the residents of the town were gradually relocated, due to concerns that the asbestos in the air posed a ...
AIB is 16-35% asbestos, typically a blend of amosite and chrysotile, though crocidolite was also used in early boards. AIB is ... "Asbestos Cement FAQs , Asbestos Garage Roof Q&A , AIC". Retrieved 2021-07-12. "Why is asbestos dangerous?". www.hse.gov.uk. ... "Asbestos Insulation Board (AIB) - What is it, What does it look like?". Asbestos-Sampling.com. Retrieved 2021-10-06. v t e ( ... Asbestos insulating board (AIB), also known by the trade names Asbestolux and Turnabestos, is an asbestos-containing board ...
Canada has not permitted crocidolite asbestos to be used and has had limitations on certain uses of other types of asbestos, ... British Columbia Worker's Compensation Board Asbestos Asbestos abatement Asbestos Convention, 1986 Asbestos Mountains Asbestos ... Asbestos Licensing and the Control of Asbestos at Work Regulations) aimed at minimising the use and disturbance of asbestos ... Guidelines for Safe Usage of Asbestos Cement Products like Asbestos Cement Sheets and Asbestos Cement Blocks. IS 11769 Part 2: ...
... and riebeckite is known as crocidolite or "blue asbestos". These are generally called amphibole asbestos. Mining, manufacture ... The first two are blue fibrous minerals, with glaucophane occurring in blueschists and crocidolite (blue asbestos) in ironstone ... US Geological Survey, Asbestos, accessed 20 July 2015. Nesse 2000, p. 242. "Health Effects of Asbestos". Agency for Toxic ... Four of the amphibole minerals are commonly called asbestos. These are: anthophyllite, riebeckite, the cummingtonite/grunerite ...
It is formed by the alteration of crocidolite. Serpentine deposits in the US states of Arizona and California can have ... chatoyant bands of chrysotile, a form of asbestos, fibres. These have been cut and sold as "Arizona tiger-eye" and "California ...
From 1938 to 1966 blue asbestos or crocidolite was carried here by truck from Wittenoom for shiploading by Australian Blue ... Environmental Protection Authority (1990), Monitoring and cleanup of asbestos at Point Samson for new site development, ... Asbestos Pty. Ltd. The townsite was investigated for further development in the 1980s. The population of Point Samson was 231 ...
Heritage-listed Canberra homestead demolished due to Mr Fluffy asbestos". ABC News. Retrieved 26 March 2022. ACT Asbestos ... although blue crocidolite has been detected. It was blown into the roof spaces of homes during the 1960s and 1970s, to provide ... Jansen started using asbestos as an insulation as early as 1967, and began using it in loose form in 1968, prompting a ... However, residual asbestos was later found in some of the cleaned houses and others were missed altogether. That led to the ...
... including those made with blue crocidolite asbestos mined in South Africa. Turner & Newall was responsible for the Armley ... After the acquisition, Federal-Mogul set aside approximately $2.1 billion to cover asbestos-related claims but that amount ... It also acquired Cooper's Abex Friction products business, which included asbestos-containing products. That same year, Federal ... Turner & Newall was one of the world's largest manufacturers of asbestos-related products, ...
There are some exceptions, for example, NA 2212 is all asbestos with UN 2212 limited to Asbestos, amphibole amosite, tremolite ... actinolite, anthophyllite, or crocidolite. Another exception, NA 3334, is self-defense spray, non-pressurized while UN 3334 is ...
Asbestos was frequently used in building material in the past. It is a name given to a group of six different fibrous minerals ... amosite, chrysotile, crocidolite, and the fibrous varieties of tremolite, actinolite, and anthophyllite). Inhalation of ... Asbestos, which has well known health risks, is still quite commonly found in older buildings, and there are also risks from ... The OSHA PEL for airborne asbestos is determined by Phase Contrast Microscopy and is set at 0.1 fiber per cubic centimeter (f/ ...
Other asbestiform minerals include riebeckite, an amphibole whose fibrous form is known as crocidolite or "blue asbestos", and ... Chrysotile Committee on Asbestos: Selected Health Effects, 2006, Asbestos: Selected Cancers, National Academies Press, ISBN 978 ... "More Information on Asbestos Removal". Total Asbestos Removal Brisbane. 2019-07-21. Retrieved 2019-07-24. "Mountain Leather". ... Asbestos-containing minerals known to form mountain leather include: actinolite, palygorskite, saponite, sepiolite, tremolite, ...
Asbestos is the only naturally occurring long mineral fiber. Six minerals have been classified as "asbestos" including ... chrysotile of the serpentine class and those belonging to the amphibole class: amosite, crocidolite, tremolite, anthophyllite ... Mineral fibers can be particularly strong because they are formed with a low number of surface defects; asbestos is a common ...
Chrysotile asbestos Asbestos fibers Asbestos Blue asbestos (crocidolite), the ruler is 1 cm Blue asbestos, teased to show the ... "pure asbestos") Gasket, containing nearly unbound asbestos Amphiboles including amosite (brown asbestos) and crocidolite (blue ... The use of crocidolite (blue asbestos) was banned in 1967, while the use of amosite (brown asbestos) continued in the ... asbestos) AIB: Asbestos insulating board (AIB) Asbestine Asbestos abatement Asbestos Disease Awareness Organization Medical ...
Some World War II and Soviet Cold War gas masks contained chrysotile asbestos or crocidolite asbestos in their filters, not ... "Porton Down report on the presence of asbestos in World War II respirator canisters" (PDF). p. 2 (summary). Archived (PDF) from ...
In 2007, Chris Harris, a professor in the department of geological sciences at UCT, found chrysotile and crocidolite (a.k.a. ... asbestos) in material found in the Tsunami TRA. The other TRA is the Symphony Way TRA which has nicknamed 'Blikkiesdorp' (or ' ...
... bagging and distribution of blue asbestos or crocidolite, in Wittenoom, in northern Western Australia. The operation, purchased ... Blue asbestos is possibly 100 times more hazardous than white asbestos, as the fibres are much smaller (around 2.5 to 10 ... "The Wittenoom Tragedy". Asbestos related information. Asbestos diseases advisory service of Australia. Archived from the ... Asbestos victim hails Hardie compo approval Asbestos Compensation Information provided by James Hardie Industries for investors ...
In 1937, Hancock showed samples of blue asbestos (crocidolite) that he had picked up in the Gorge to Islwyn Walters and Walter ... Wittenoom: Asbestos contamination and management (Western Australian Government) The Asbestos Disease Society of Australia (All ... When Leonard cabled London that two miles (3.2 km) of asbestos in sight at Yampire Gorge, they cabled him back saying he should ... It records all new cases in order to help the government develop policies about how to deal with asbestos that still remains in ...
... brand used a crocidolite asbestos filter, made by the Hollingsworth & Vose company, which later resulted in millions of dollars ...
... crocidolite, tremolite) Azathioprine Benzene Benzidine, and dyes metabolized to Benzo[a]pyrene Beryllium and beryllium ... and plants containing them Arsenic and inorganic arsenic compounds Asbestos (all forms, including actinolite, amosite, ...
The Asbestos Decree of April 1977 prohibited the storage and use of crocidolite (blue asbestos) and materials or products ... containing crocidolite and also prohibited "the spraying of asbestos or materials or products containing asbestos and their use ...
Background: Blue asbestos was mined and milled at Wittenoom in Western Australia between 1943 and 1966. ... Conclusion: Asbestos related diseases, particularly malignant mesothelioma, lung cancer and pneumoconiosis, continue to be the ... Person-years at risk were derived using two censoring dates in order to produce minimum and maximum estimates of asbestos ... main causes of excess mortality in the former blue asbestos miners and millers of Wittenoom. ...
null If maintenance requires detaching and reattaching a single panel containing crocidolite, do you need an asbestos removal ... If maintenance requires detaching and reattaching a single panel containing crocidolite, do you need an asbestos removal ... You do not need an asbestos removal license if removal and reattachment do not cause exposure to asbestos dust. ...
Crocidolite. 7400. ASBESTOS and OTHER FIBERS by PCM. Crocidolite. 7402. ASBESTOS by TEM. ...
WebMD explains how you can be exposed to asbestos and the potential health risks it poses. ... Asbestos is found naturally in rock and soil. When these mineral fibers are released into the air and breathed in over long ... Crocidolite: Also called "blue" asbestos, research suggests it may be tied to more illnesses and deaths than any other type of ... Penn Medicine: "Types of Asbestos That Can Cause Asbestos Diseases.". Consumer Product Safety Commission: "Asbestos In The Home ...
ant to learn about the different types of asbestos and their associated health risks? Find out today with Early, Lucarelli, ... Crocidolite Asbestos. Crocidolite asbestos has thinner fibers than the remaining types of asbestos on this list, but not as ... What is the most dangerous form of asbestos?. Crocidolite asbestos is the most dangerous type of asbestos because its fibers ... Tremolite Asbestos. Tremolite asbestos is also called Libby asbestos because it was mined in Libby, Montana. Compared to other ...
Learn about the history of asbestos use in the U.S., how to detect it, who is at the most risk, and much more at FindLaw.com. ... Asbestos exposure has been the source for many illnesses and deaths. ... But what is asbestos, exactly, and why is it so harmful? Asbestos is durable, heat resistant, and has insulating properties. ... History of Asbestos Use in the United States. For many years, companies used asbestos in hundreds, if not thousands, of ...
An estimation of the rate at which crocidolite asbestos fibres are cleared from the lung. Home. >Scientific Publications. > ... An estimation of the rate at which crocidolite asbestos fibres are cleared from the lung. Author: Du Toit RSJ. ... An estimation of the rate at which crocidolite asbestos fibres are cleared from the lung. ... The prevalences and levels of occupational exposure to dusts and/or fibres (silica, asbestos and coal): A systematic review and ...
"Crocidolite asbestos fibers in smoke from original Kent cigarettes". Cancer Research. 55 (11): 2232-5. PMID 7757969. "Asbestos ... Asbestos disasters, Asbestos, British American Tobacco brands, Products introduced in 1952, R. J. Reynolds Tobacco Company ... Lorillard quietly changed the filter material from asbestos to the more common cellulose acetate in mid 1956. Kent continued to ... Myron Levin (November 2013). "Lawsuits continue over asbestos in Kent cigarette filters". Greensboro.com. Retrieved 3 January ...
There are 3 main types of asbestos still found in premises. These are commonly called:. * blue asbestos (crocidolite) ... For more information on asbestos, asbestos licensing, asbestos licensed contractors please visit the Health & Safety Executive ... Asbestos in your home. When materials that contain asbestos are disturbed or damaged, fibres are released into the air. When ... Household hazardous waste and asbestos Household hazardous waste and asbestos Hazardous wastes from your home. We know that ...
Crocidolite. 12001-28-4. Polychlorinated terphenyls (PCT)61788-33-8. Polybrominated biphenyls (PBB) 36355-01-8 (hexa) 27858-07- ... Canada and Russia led a revolt of asbestos producing countries against the inclusion of chrysotile asbestos (white asbestos) on ... Ban Asbestos Network of India Condemns Indian Governments Double Speak on Asbestos. Published by MAC on 2003-11-21 Ban ... Notwithstanding the hazards of asbestos at home, if developing countries really want to buy Canadas carcinogenic asbestos they ...
... types of asbestos, health hazards of its use, and why it requires environmental remediation. ... Crocidolite is a form of asbestos that appears blue. It isnt as heat-resistant as other types of asbestos, so it isnt used as ... The Amphibole Asbestos family consists of asbestos minerals that have straight fibers. Crocidolite, amosite, anthophyllite, ... Many countries banned asbestos outright.. Health Hazards of Asbestos. The asbestos mineral has needle-like qualities. It is ...
Amosite asbestos is commonly called brown asbestos, thanks to its dark appearance. Finally, crocidolite refers to blue asbestos ... However, the main division in the asbestos types is serpentine asbestos and amphibole. Serpentine asbestos refers to the kind ... When found in nature, asbestos is often identified by its predominant coloration. Chrysotile asbestos is also known as white ... Guidelines to Identifying and Addressing Asbestos. The Environmental Protection Agency explains that asbestos can only be ...
Fibrous nanocellulose, crystalline nanocellulose, carbon nanotubes, and crocidolite asbestos elicit disparate immune responses ... and crocidolite asbestos (ASB), on pulmonary inflammation and immune responses found in the lungs, as well as the effects on ...
... crocidolite, amosite, or chrysotile and explains possible legal remedies. This website is maintained to provide a useful legal ... Asbestos victims information provides information for victims of asbestos disease: mesothelioma, pleural plaque, asbestosis, ... If you are a victim of asbestos disease, you have a right to know about the outrageous misconduct of the asbestos industry. You ... Asbestos Victims Information. Please Read the Disclaimer & Terms of Use Before Entering Site. mesothelioma, pleural plaque, ...
crocidolite asbestos decreases expression. ISO. Ldah (Mus musculus). 6480464. Asbestos and Crocidolite results in decreased ...
... with asbestosis more specifically being pneumoconiosis caused by asbestos inhalation. (See Etiology. ... All types of asbestos fibers are fibrogenic to the lungs. Amphiboles, particularly crocidolite fibers, are markedly more ... What is asbestos?. Asbestos is a group of minerals shaped as long fibers. Sources of asbestos, up to the 1970s, included ... Asbestos bodies in bronchoalveolar lavage in relation to asbestos bodies and asbestos fibres in lung parenchyma. Eur Respir J. ...
Amosite and crocidolite are called amphiboles. This term refers to the nature of their geologic formation. Other asbestos ... In addition to asbestos mines, asbestos is found as a contaminant mineral in the host rock in non-asbestos mining operations. ... employer, fiber, operation, health & medicine, exposure assessment, cfr 1926, epa, protection, asbestos regulation, asbestos ... Chrysotile is the type of asbestos most commonly found in commercial products. Amosite and crocidolite are generally considered ...
Asbestos agent detailed information in Haz-Map database. ... The amphibole fibers (crocidolite and amosite) are more potent ... Asbestos in insulation materials banned in the US in 1975; [ATSDR Case Studies] Dutch laws prohibited the use of crocidolite in ... ATSDR Case Studies, Asbestos Toxicity] As a general rule, exposure to asbestos for less than 6 months is unlikely to cause ... mainly amosite and crocidolite) than for exposure to chrysotile asbestos." [PMID 31087402] Yields a similar estimate of ...
... with asbestosis more specifically being pneumoconiosis caused by asbestos inhalation. (See Etiology. ... All types of asbestos fibers are fibrogenic to the lungs. Amphiboles, particularly crocidolite fibers, are markedly more ... What is asbestos?. Asbestos is a group of minerals shaped as long fibers. Sources of asbestos, up to the 1970s, included ... Asbestos bodies in bronchoalveolar lavage in relation to asbestos bodies and asbestos fibres in lung parenchyma. Eur Respir J. ...
There are many misconceptions about mesothelioma and asbestos. Learn more about a rare cancer and the dangerous mineral that ... The six types of asbestos are chrysotile, actinolite, amosite, anthophyllite, crocidolite and tremolite. ... All types of asbestos are considered dangerous.. MYTH: Chrysotile asbestos is not dangerous.. FACT: Chrysotile asbestos is the ... Asbestos Misconceptions. Misconceptions About Asbestos. Many people know asbestos is a mineral that poses a danger to their ...
Asbestos. Asbestos, fibers ,5 µm in length (3MgO.2SiO2.2H2O). Asbestos [actinolite, anthophyllite, chrysotile, crocidolite, ... Asbestos. Asbestos [actinolite, anthophyllite, chrysotile, crocidolite, tremolite] Talc, containing fibrous tremolite. ID-160. ... Therefore, asbestos exposures are presented for 1979-1986, 1987-1994, and for 1995 onwards. The MSHA PEL for asbestos has not ... Asbestos. Asbestos, fibers ,5 µm in length (3MgO.2SiO2.2H2O). NIOSH 7400. ...
The tons of asbestos utilized in the past remain a health hazard for current and future generations because asbestos is ... Therefore, asbestos research is of great interest to a large audience that includes patients, millions of asbestos-exposed ... This makes asbestos and mesothelioma research a public health issue in addition to a medical problem. Moreover, the very high ... Millions of people have been exposed worldwide to asbestos, especially during the second half of the twentieth century when ...
... relates to certain minerals that have a fibrous structure, are heat resistant and chemically inert, possess ... Asbestos proper is actinolite. Chrysotile is fibrous serpentine; amosite is fibrous anthophyllite; crocidolite is fibrous soda- ... Asbestos ■■■■■■■■■■. Asbestos is characterized as a group of naturally occurring minerals that separate into long, thin fibers ... Asbestos mineral Asbestos mineral relates to certain minerals that have a fibrous structure, are heat resistant and chemically ...
crocidolite asbestos. 32. References: Marsella JM, Environ Health Perspect 1997 Sep;105 Suppl 5():1069-72 ...
"Asbestos" means the asbestiform varieties of chrysotile, amosite, crocidolite, tremolite, anthrophyllite, and actinolite. " ... "Asbestos materials" means any material or product that contains more than 1% asbestos. "Asbestos consultant" means a person ... "Asbestos supervisor" means an asbestos abatement contractor, foreman, or person designated as the asbestos abatement ... or disposal of asbestos containing materials. "Asbestos containing building materials" or "ACBM" means surfacing asbestos ...
Three forms of asbestos: amosite, crocidolite, and chrysotile, were assayed for their cytotoxicity and mutagenicity in cell ... Asbestos--Toxicology ; Cell culture ; Intestines--Cancer ; Stomach--Cancer ; Asbestos--toxicity ; Cell Culture Techniques ; ... crocidolite. Leaching in acid slightly increased the toxicity of amosite and crocidolite and greatly decreased the toxicity of ... Asbestos ; Malignant neoplasms ; Gastrointestinal system ; Toxicology ; Silicate minerals ; Humans ; Intestines ; Liver ; Rats ...
2) "Asbestos" means asbestiform varieties of chrysotile, amosite, crocidolite, anthophyllite, tremolite, or actinolite. ... demolition of asbestos in a building or other structure, or the transportation or disposal of asbestos-containing waste. The ... Part 5. Asbestos Control Definitions 75-2-502. Definitions. As used in this part, unless the context requires otherwise, the ... 4) "Asbestos-related occupation" means an inspector, management planner, project designer, contractor, supervisor, or worker ...
1913 Webster] Blue asbestus. See Crocidolite. Blue black, of, or having, a very dark blue color, almost black. Blue blood. See ...
Longo W E, Rigler M W, Slade J. Crocidolite asbestos fibers in smoke from original Kent cigarettes. Cancer Res1995;55:2232-5. ... Plaintiff did not smoke KENT when the filter contained asbestos; even if he did, the asbestos did not escape from the filter; ... The initial version of the Micronite filter in Kent cigarettes used crocidolite asbestos as the filtering agent from 1952 until ... In these cases the defence argued that the use of asbestos in Kent cigarette filters occurred only for a four-year period and ...
  • Tremolite asbestos is also called Libby asbestos because it was mined in Libby, Montana. (elslaw.com)
  • However, because it occurs in the same rock formations as chrysotile, a more useful asbestos type, tremolite found its way into plenty of products despite its brittle fibers. (elslaw.com)
  • Tremolite is the most common type of asbestos found in talc deposits, but anthophyllite and actinolite also occur. (elslaw.com)
  • Amphibole asbestos, which includes the minerals amosite, crocidolite, tremolite, anthophyllite, and actinolite, form crystalline fibers that are substantially more brittle than serpentine asbestos and is more limited in being fabricated. (cdc.gov)
  • Tremolite asbestos is found within the ground near deposits of chrysotile and vermiculite. (ferrocanada.com)
  • Other asbestos fibers that have not been used commercially are tremolite, actinolite, and anthophyllite, although they are sometimes contaminants in asbestos-containing products. (onepetro.org)
  • Tremolite and actinolite have never been used commercially, and they can both occur in non-asbestos form. (compleatrestorations.com)
  • Asbestos is the name given to a group of six different fibrous minerals (amosite, chrysotile, crocidolite, and the fibrous varieties of tremolite, actinolite, and anthophyllite) that occur naturally in the environment. (cdc.gov)
  • There are two main classes of asbestos: serpentine (which includes chrysotile) and amphibole (which includes amosite, crocidolite, anthophyllite, tremolite, and actinolite). (merckmanuals.com)
  • Anthophyllite asbestos is not as common in nature, although it's sometimes found in talc deposits. (elslaw.com)
  • Anthophyllite is a rare type of asbestos that has been mined in Georgia, North Carolina, and Finland. (ferrocanada.com)
  • Anthophyllite is the most acid-resistant type of asbestos and has a greenish, gray, or dull brown color. (compleatrestorations.com)
  • In 1858, the Johns Company began to mine for fibrous anthophyllite for use as asbestos insulation at the Ward's Hill quarry in Staten Island, New York. (compleatrestorations.com)
  • The four main types of asbestos are: Amosite with brown fibers, Anthophyllite with gray fibers, white Christie, and blue Crocidolite. (mesotheliomalegalreview.com)
  • Chrysotile, amosite, crocidolite, and anthophyllite are the four fibers that are most commonly found. (carlsonattorneys.com)
  • Actinolite is another rare type of asbestos that isn't often found in consumer products. (elslaw.com)
  • Actinolite asbestos was mined in Australia and is dark-colored and consists of straight needle-like fibers. (ferrocanada.com)
  • Asbestos proper is actinolite. (top500.de)
  • Asbestos is the name for six minerals made of fibers found naturally in the earth. (webmd.com)
  • But the fibers that form asbestos separate easily into tiny pieces when they're handled or damaged. (webmd.com)
  • This makes it harder for the lungs to remove asbestos fibers. (webmd.com)
  • Like mesothelioma, it doesn't usually occur until years after a person has breathed in asbestos fibers on a regular basis. (webmd.com)
  • Crocidolite asbestos has thinner fibers than the remaining types of asbestos on this list, but not as thin as chrysotile. (elslaw.com)
  • Compared to other types of asbestos, its fibers are more brittle and also more acid-resistant. (elslaw.com)
  • Serpentine asbestos, which includes the mineral chrysotile, a magnesium silicate mineral, possesses relatively long and flexible crystalline fibers that are capable of being woven. (cdc.gov)
  • These chains crystallize into long, thin, straight fibers, which are the characteristic structure of this type of asbestos. (cdc.gov)
  • Asbestos minerals form under special physical conditions that promote the growth of fibers that are loosely bonded in a parallel array (fiber bundles) or matted masses. (cdc.gov)
  • Because asbestos fibers are like tiny needles, they can lodge in the tissues inside the body. (ferrocanada.com)
  • Once they have been inhaled, asbestos fibers remain in the body. (ferrocanada.com)
  • Inhaled or ingested asbestos fibers remain in these tissues for decades before mesothelioma, an asbestos related-illness similar to lung cancer, develops. (ferrocanada.com)
  • The Serpentine Asbestos family consists of asbestos minerals with curved and flexible fibers. (ferrocanada.com)
  • The Amphibole Asbestos family consists of asbestos minerals that have straight fibers. (ferrocanada.com)
  • Chrysotile asbestos fibers are the most commonly used type of asbestos in many industries, including consumer products. (ferrocanada.com)
  • Chrysotile asbestos is made of long and curly fibers. (ferrocanada.com)
  • In acoustical and decorative finishes, asbestos fibers may appear in textured compounds like the once-popular "popcorn ceiling. (mesotheliomasymptoms.com)
  • Serpentine asbestos refers to the kind that has a layered form and curly fibers and includes only the chrysotile variety. (mesotheliomasymptoms.com)
  • Exposure to asbestos occurs through inhalation of fibers in air in the working environment, ambient air in the vicinity of factories handling asbestos, or indoor air in housing and buildings containing asbestos materials. (medscape.com)
  • All types of asbestos fibers are fibrogenic to the lungs. (medscape.com)
  • Amphiboles, particularly crocidolite fibers, are markedly more carcinogenic to the pleura. (medscape.com)
  • People who smoke have an increased rate of asbestosis progression, likely due to impaired mucociliary clearance of asbestos fibers. (medscape.com)
  • Exposure to amphibole asbestos fibers is linked to the production of autoantibodies. (medscape.com)
  • Asbestos is the name for a group of naturally occurring silicate minerals that can be separated into fibers. (onepetro.org)
  • The amphibole fibers (crocidolite and amosite) are more potent causes of lung cancer and mesothelioma. (haz-map.com)
  • Individuals may inhale or ingest asbestos fibers, which then embed in organ linings. (mesothelioma.com)
  • After an individual inhales or ingests asbestos, the fibers embed in the lining of organs. (mesothelioma.com)
  • The OSHA PEL of 2 fibers per cubic centimeter (f/cc) for asbestos was reduced to 0.2 f/cc on July 21, 1986, and to 0.1 f/cc on October 11, 1994. (cdc.gov)
  • Asbestos is characterized as a group of naturally occurring minerals that separate into long, thin fibers. (top500.de)
  • 2) Exposure to asbestos fibers and particles in the air over a long period of time has been linked by reputable medical and scientific authorities to a significant increase in the incidence of disease, such as asbestosis, bronchogenic carcinoma, mesothelioma, and other malignancies. (ilga.gov)
  • In this study, asbestos fibers in lung are characterized and quantified for the first time in an exposed and an unexposed Spanish population. (ersjournals.com)
  • Results are expressed as the number of asbestos fibers or asbestos bodies per gram of dry lung tissue. (ersjournals.com)
  • Asbestos is a group of naturally occurring fibrous minerals made of long thin microscopic fibers. (mt.gov)
  • Asbestos fibers have been added to thousands of products due to their unique properties, which include high tensile strength, flexibility, acoustical, and resistance to thermal, chemical, friction, and electrical conditions. (mt.gov)
  • The amphibole asbestos has thin and straight fibers that come in different types. (harcourthealth.com)
  • Asbestos fibers are microscopic in nature which can be easily swallowed along with contaminated food or water. (harcourthealth.com)
  • Most asbestos that occurs naturally in the air contains a very low level of fibers in it. (harcourthealth.com)
  • Large asbestos fibers often stick to the larynx, pharynx, and trachea and goes all the way through the bronchi (the bigger breathing tubes of the lungs. (harcourthealth.com)
  • Laryngeal Cancer - The microscopic fibers of asbestos that were stuck in the larynx (voice box) along with heavy drinking and smoking may lead to laryngeal cancer. (harcourthealth.com)
  • Asbestos is a group of six naturally occurring fibrous materials composed of thin, needle-like fibers…that can be pulled into a fluffy consistency. (compleatrestorations.com)
  • Also known as "blue asbestos," crocidolite is made up of short, thin, and flexible fibers. (compleatrestorations.com)
  • In fact, many historians believe that the use of Asbestos may date all the way back to 4000 B.C., when its fibers were used for candle and lamp wicks. (compleatrestorations.com)
  • Asbestos is made up of bundles of thin, separable fibers that have parallel arrangement. (mesothelioma-attorney.com)
  • When asbestos is handled, cut or abraded, these bundles break down into millions of tiny fibers that become airborne. (mesothelioma-attorney.com)
  • The presence of asbestos fibers in the air can be hard to detect, because the fibers are microscopic and have no odor or taste. (mesothelioma-attorney.com)
  • Asbestos fibers are virtually indestructible. (mesothelioma-attorney.com)
  • Once inhaled, the asbestos fibers can cause respiratory problems, including mesothelioma, lung cancer and asbestosis. (mesothelioma-attorney.com)
  • There is no safe level of exposure to asbestos fibers according to a 1980 study by the National Institute of Occupational Safety and Health (NIOSH) , a subsidiary of the Centers for Disease Control (CDC) . (mesothelioma-attorney.com)
  • Asbestos is often mixed with other materials to keep them intact, since the fibers serve as a binding agent. (mesothelioma-attorney.com)
  • Air erosion" means the passage of air over friable ACBM which may result in the release of asbestos fibers. (ky.gov)
  • Airborne asbestos fibers can penetrate deep into the lungs. (envirosafetyproducts.com)
  • Once inhaled, microscopic barbs make the asbestos fibers impossible to dislodge. (envirosafetyproducts.com)
  • It is generally agreed that asbestos fibers alter the lung tissue on a cellular level. (envirosafetyproducts.com)
  • Asbestos minerals have separable long fibers that are strong and flexible enough to be spun and woven and are heat resistant. (cdc.gov)
  • Asbestos fibers can be separated into thin threads which do not conduct electricity and are not affected by heat or chemicals. (mesotheliomalegalreview.com)
  • In the 1970's the U.S Consumer Product Safety Commission banned the use of asbestos in several products that could release asbestos fibers into the environment during use, following the discoveries of the health dangers of asbestos dust inhalation. (mesotheliomalegalreview.com)
  • Not all workers who have been exposed will develop diseases caused by asbestos, but workers who have been exposed to it may bring fibers on their clothing, hair, shoes, and skin home to their families. (mesotheliomalegalreview.com)
  • Mesothelioma is a rare and malignant cancer caused by inhaling asbestos fibers that lodge in the lining of the lungs, abdomen and heart. (carlsonattorneys.com)
  • Asbestos-related disorders are caused by inhalation of asbestos fibers, such as when friable asbestos-containing material is disturbed. (msdmanuals.com)
  • Disturbance of this material can generate airborne fibers with physical properties and health effects similar to asbestos. (cdc.gov)
  • Amosite is the second most used type of asbestos in the U.S. It was mainly mined in South Africa until the last mine closed and stopped producing it in 2002. (elslaw.com)
  • Amosite is a type of asbestos that is highly toxic. (ferrocanada.com)
  • Chrysotile is by far the most common type of asbestos fiber produced in the world, and it accounts for virtually all commercial use of asbestos in the United States. (medscape.com)
  • Chrysotile is the type of asbestos most commonly found in commercial products. (onepetro.org)
  • This study provides the first available data on the type of asbestos content in lung in the Spanish population. (ersjournals.com)
  • This is due to past mining and exporting of crocidolite (the most carcinogenic type of asbestos), especially from Wittenoom asbestos mining operations. (edu.au)
  • Crocidolite is a type of asbestos. (stonemania.co.uk)
  • This is the most commonly used and most frequently found type of asbestos. (bpic.com.au)
  • Unfortunately, the only way to confirm the type of asbestos in a material is to examine it under an electron microscope. (bpic.com.au)
  • [ 1 ] Of the 33 patients, 32 had been exposed to crocidolite, the most carcinogenic type of asbestos. (medscape.com)
  • When work with asbestos is being carried out the Regulations place a requirement on employers and self-employed workers to prevent exposure to asbestos fibres. (wikipedia.org)
  • Should work need to be carried out that may result in the disturbing of asbestos then all measures should be taken to limit the exposure to asbestos fibres. (wikipedia.org)
  • The control limit is the maximum concentration of asbestos fibres in the air if measured over any continuous 4 hour period. (wikipedia.org)
  • Any short term exposure to asbestos, as measured by continuous exposure over 10 minutes, should not exceed 0.6 fibres per cm³. (wikipedia.org)
  • As a result, asbestos insulation material was disturbed and broken potentially giving rise to powders and fibres. (wikipedia.org)
  • Asbestos is a naturally occurring group of silicate minerals that can readily be separated into thin strong fibres that are flexible, heat resistant and chemically inert. (wikipedia.org)
  • Although Asbestos can be safe if the material is kept in good condition and undisturbed, if damaged asbestos fibres could become airborne and cause serious risks to health if inhaled. (wikipedia.org)
  • Serious diseases including mesothelioma, lung cancer, and asbestosis could result if someone were to breathe in high levels of asbestos fibres. (wikipedia.org)
  • When materials that contain asbestos are disturbed or damaged, fibres are released into the air. (newcastle.gov.uk)
  • When these fibres are inhaled they can cause serious diseases, such as mesothelioma, asbestosis and asbestos-related lung cancer. (newcastle.gov.uk)
  • It's largely dependant on the direction of the crocidolite fibres within tigers eye. (stonemania.co.uk)
  • That inner dimensionality effect is due to the fibres of crocidolite asbestos (a variety of magnesio-riebeckite) locked within the stone (Fig. 1). (depositsmag.com)
  • It is not just the fine fibres of crocidolite that make working with Tiger's eye problematic without proper protection. (depositsmag.com)
  • Asbestos crystals and fibres are not visible to the naked eye however experts often can spot the telltale flakes and fibres indicating the presence of asbestos. (bpic.com.au)
  • Asbestos crystalline fibres are so brittle and so fine that they easily shatter, scatter and become airborne dust. (bpic.com.au)
  • Exposure to airborne asbestos dust and fibres increases risks for lung cancers, especially if individuals also smoke. (bpic.com.au)
  • After years of inhaling asbestos dust particles and fibres, the lungs become scarred and lose flexibility. (bpic.com.au)
  • When exposed to airborne asbestos fibres, the pleural membranes covering the lungs can develop pleural plaques - patches of scarred membrane that thicken and turn rigid. (bpic.com.au)
  • We report on the presence of asbestos fibres in drinking water supply in Christchurch, New Zealand from ageing asbestos cement reticulated water supply. (iwaponline.com)
  • Municipalities cannot continue to rely on ageing asbestos-cement piping, as it appears to be releasing asbestos fibres into drinking water with uncertain health implications, and should prioritise replacing pipes greater than 50 years in age, especially where high water pressures or land disturbance occur, to reduce the risk of water-carried asbestos being released into urban environments, and mitigate any risk of asbestos from ingested contaminated water sources. (iwaponline.com)
  • Municipalities should monitor for the presence of asbestos fibres as a strategy for detecting pipe corrosion. (iwaponline.com)
  • Asbestos cement piping is reaching its end-of-life stage and is releasing short and long asbestos fibres into the water supply. (iwaponline.com)
  • Because chrysotile has different chemical and physical properties to other asbestos fibres, it is important to conduct studies specifically of chrysotile to improve knowledge about its carcinogenicity, as distinct from that of amphibole asbestos or mixtures of chrysotile and amphiboles. (who.int)
  • OBJECTIVES: the Italian Epidemiological Association (AIE) intends to formulate assessments and recommendations on the most relevant and critical aspects in the preparation, conduct, and interpretation of epidemiological investigations on the health effects of exposure to asbestos and asbestos-like fibres. (bvsalud.org)
  • Chrysotile asbestos is the most common type found in asbestos products , especially construction materials. (elslaw.com)
  • The chloralkali industry, which makes chlorine, also relies on chrysotile asbestos. (elslaw.com)
  • At the Rotterdam Convention meeting currently underway in Geneva (17-21 November), Canada and Russia led a revolt of asbestos producing countries against the inclusion of chrysotile asbestos (white asbestos) on the international list of chemicals subject to trade controls, despite scientific findings that this substance is harmful for human health and the environment, and in spite of the clear obligation, under the treaty, for such a listing. (minesandcommunities.org)
  • Ban Asbestos Network of India (BANI), a coalition of civil society groups, supports the proposed listing of chrysotile on the Rotterdam Prior Informed Consent (PIC) Convention because it alerts potential importers that chrysotile asbestos is a known cancer-causing agent, which poses a risk even at very low levels. (minesandcommunities.org)
  • Manufacturers used chrysotile asbestos in automobile brake linings, gaskets and boiler seals, and insulation for pipes, ducts, and appliances. (ferrocanada.com)
  • Chrysotile asbestos can be found today in the roofs, ceilings, walls, and floors of homes and businesses. (ferrocanada.com)
  • Chrysotile asbestos is also known as white asbestos, due to its light coloration. (mesotheliomasymptoms.com)
  • Sullivan, p. 1219-22] "While all forms of asbestos have been determined to cause mesothelioma, there is evidence that the quantitative risk of mesothelioma varies with asbestos fibre type, with higher unit risks usually observed for exposure to commercial amphibole asbestos minerals (mainly amosite and crocidolite) than for exposure to chrysotile asbestos. (haz-map.com)
  • The chrysotile asbestos has a spiral microscopic structure. (harcourthealth.com)
  • The chrysotile asbestos is the most commonly used type asbestos for industrial and manufacturing applications which are known as serpentine or curly asbestos. (harcourthealth.com)
  • Over time, asbestos exposure can cause diseases like mesothelioma , lung cancer and asbestosis. (elslaw.com)
  • Asbestosis is a process of diffuse interstitial fibrosis of the lung due to exposure to asbestos dust. (medscape.com)
  • Asthma in the Workplace, p. 380] An obstructive pattern (reduced FEV1/FVC) is not likely to be seen in nonsmoking workers with asbestosis, and there is no evidence that asbestos causes emphysema. (haz-map.com)
  • Although mesothelioma and asbestosis are caused by asbestos exposure, they are not the same disease. (mesothelioma.com)
  • Research indicates asbestosis may present before mesothelioma and other asbestos cancers. (mesothelioma.com)
  • Asbestos may cause noncancerous conditions, such as asbestosis, pleural thickening , pleural plaques and chronic obstructive pulmonary disease (COPD). (mesothelioma.com)
  • There were no significant differences in asbestos fiber or body counts between patients with non-malignant conditions (asbestosis and plaques) and those with malignant disease (lung cancer and mesothelioma). (ersjournals.com)
  • Asbestos is a known carcinogen, causing asbestos-related illnesses such as lung cancer, mesothelioma, and asbestosis. (mt.gov)
  • Usually it takes at least 15 years from the time someone is exposed to asbestos until they develop mesothelioma, asbestosis or lung cancer. (mesothelioma-attorney.com)
  • While it can cause a number of illnesses, the two most often associated with asbestos exposure are asbestosis and mesothelioma. (envirosafetyproducts.com)
  • Asbestosis is the chronic inflammation (and subsequent scarring) of lung tissue stemming from inhalation of asbestos. (envirosafetyproducts.com)
  • If you have ever been exposed to asbestos and contracted a serious and deadly illness like mesothelioma or asbestosis because of that exposure, you have legal options for seeking justice and compensation. (carlsonattorneys.com)
  • Asbestosis Asbestosis is a form of interstitial pulmonary fibrosis caused by asbestos exposure. (merckmanuals.com)
  • There is enough global evidence against chrysotile/white asbestos. (minesandcommunities.org)
  • Also called "white asbestos," chrysotile is the most common type, and is found in 95 percent of products that contain asbestos in the United States. (compleatrestorations.com)
  • The first commercial asbestos mines appeared in Canada around 1876, when white asbestos, or chrysotile, was discovered in Quebec. (compleatrestorations.com)
  • Asbestos inspector" means an individual who performs inspections of commercial and public buildings for the presence of asbestos containing materials. (ilga.gov)
  • The presence of asbestos in tigers eye often causes alarm. (stonemania.co.uk)
  • Compliance with asbestos regulations depends on accurate identification of the presence of asbestos. (bvsalud.org)
  • All of them are dangerous, but blue and brown asbestos are more hazardous than white. (newcastle.gov.uk)
  • Amosite asbestos is commonly called brown asbestos, thanks to its dark appearance. (mesotheliomasymptoms.com)
  • The crocidolite and amosite (commonly known as blue and brown asbestos respectively) are common types of amphibole asbestos. (harcourthealth.com)
  • Amosite, or "brown asbestos," is the second most common type. (compleatrestorations.com)
  • During July and August 2023, DEQ's Asbestos Control Program pursued informal comments on proposed changes to asbestos regulations in the Administrative Rules of Montana. (mt.gov)
  • Please note that "Asbestos: 2023 World Market Review and Forecast" is a half ready publication and contents are subject to changes and additions. (mcgroup.co.uk)
  • Indeed, the Intergovernmental Negotiating Committee of the Rotterdam Convention on the Prior Informed Consent (PIC) Procedure for Certain Hazardous Chemicals and Pesticides in International Trade had recommended the inclusion of all forms of asbestos to the international list of chemicals subject to trade control. (minesandcommunities.org)
  • Three forms of asbestos: amosite, crocidolite, and chrysotile, were assayed for their cytotoxicity and mutagenicity in cell clture. (epa.gov)
  • The most common forms of asbestos are amosite and chrysotile. (wildlaw.org)
  • WHO, in collaboration with the International Labour Organization and other intergovernmental organizations and civil society, has recognized that stopping the use of all forms of asbestos is the most efficient way to eliminate asbestos-related diseases ( WHO Fact Sheet No. 343 ). (who.int)
  • This is evidenced in countries that now have the highest mesothelioma mortality rates worldwide, such as Australia, the Netherlands, and the United Kingdom, all of which have long banned the use of all forms of asbestos (bans were extended to include chrysotile in 1989 in Australia, in 1993 in the Netherlands, and in 1999 in the United Kingdom). (who.int)
  • If your home was built with vermiculite insulation, you'll want to test for asbestos before renovating. (elslaw.com)
  • It was used as a means of fireproofing as well as insulation and any building built before 2000 could contain asbestos. (wikipedia.org)
  • Workers are also likely to be exposed during the manufacture and use of asbestos products (eg, textiles, floor tiles, friction products, insulation [pipes], other building materials), as well as during automotive brake and clutch repair work. (medscape.com)
  • Other high-risk jobs include manufacture of asbestos products (such as building materials and insulation) and performing automotive brake and clutch repair. (onepetro.org)
  • Asbestos containing building materials" or "ACBM" means surfacing asbestos containing materials or ACM, thermal system insulation ACM, or miscellaneous ACM that is found in or on interior structural members or other parts of a building. (ilga.gov)
  • Most workers who are related to processing and mining of asbestos, manufacturing products with asbestos, and fireproofing and insulation businesses have a greater chance of inhaling asbestos. (harcourthealth.com)
  • It is not as heat-resistant as other types of asbestos, so it was used more commonly in pipe insulation, cement products, and plastics. (compleatrestorations.com)
  • Asbestos-containing building material" or "ACBM" means surfacing ACM, thermal system insulation ACM, or miscellaneous ACM that is found in or on interior structural members or other parts of a school building. (ky.gov)
  • As a result, asbestos was used as a flame retardant in thousands of products such as textiles, insulation, building materials, etc. (envirosafetyproducts.com)
  • Amosite and crocidolite are called amphiboles. (onepetro.org)
  • The two main groups of asbestos mineral are serpentine and amphiboles. (top500.de)
  • And goods that still contain asbestos that could be inhaled must have labels saying so. (webmd.com)
  • Some vermiculite or talc products may contain asbestos. (cdc.gov)
  • Manufacturers may be liable in asbestos exposure cases if their products contain asbestos. (carlsonattorneys.com)
  • Products that contain asbestos may be unreasonably dangerous . (carlsonattorneys.com)
  • Because asbestos is a natural mineral, it also occurs in the same places as other minerals. (elslaw.com)
  • The fact that these two minerals form together means that makeup with talc can be contaminated with asbestos, as testing has shown. (elslaw.com)
  • Asbestos is a generic term for a group of six naturally-occurring, fibrous silicate minerals that have been widely used in commercial products. (cdc.gov)
  • Asbestos minerals fall into two groups or classes, serpentine asbestos and amphibole asbestos. (cdc.gov)
  • These nonfibrous minerals, which are not asbestos, are much more common and widespread than the asbestiform varieties. (cdc.gov)
  • Some of the asbestos minerals are solid solution series, since they show a range of chemical formulas as a result of ion or ionic group substitutions. (cdc.gov)
  • Table 4-1 lists common synonyms and other pertinent identification information for asbestos (generic) and the six individual asbestos minerals. (cdc.gov)
  • The geological or commercial meaning of the word asbestos is broadly applied to fibrous forms of the silicaceous serpentine and amphibole minerals mentioned above. (cdc.gov)
  • The amphibole group, which is the division the other five types of asbestos fall into, is made up of minerals that possess a chain-like structure. (mesotheliomasymptoms.com)
  • Asbestos mineral relates to certain minerals that have a fibrous structure , are heat resistant and chemically inert, possess high electrical insulating qualities , and are of sufficient flexibility to be woven. (top500.de)
  • Asbestos is the material that has been manufactured from a mixture of fibrous minerals. (wildlaw.org)
  • Asbestos is a naturally occurring mineral that falls under the fibrous silicate minerals group. (harcourthealth.com)
  • Asbestos is the name of a group of six fibrous minerals that occur naturally in the environment. (carlsonattorneys.com)
  • Asbestos is the common name for six fibrous silicate minerals. (bpic.com.au)
  • Six different minerals served as the basis for asbestos. (bpic.com.au)
  • Julia Langer, Director of the International Conservation Programme at WWF-Canada, added: 'Notwithstanding the hazards of asbestos at home, if developing countries really want to buy Canada's carcinogenic asbestos they should only do so with full disclosure. (minesandcommunities.org)
  • Even differentiating asbestos-containing materials from those without the carcinogenic substance is difficult. (mesotheliomasymptoms.com)
  • In both cases, the plaintiff alleged, the companies had not adequately warned him of the dangers he was being exposed to in working with a particularly carcinogenic form of asbestos known as crocidolite. (braytonlaw.com)
  • While some Indian government officials kowtow to the financial clout of our country's asbestos cement producers and their foreign supporters, others acknowledge the truth. (minesandcommunities.org)
  • In Japan, crocidolite had been used for asbestos cement pipe and spraying, and amosite had been used for building board and spraying. (nih.gov)
  • Eroded asbestos deposits that go into the natural bodies of water or cement pipes made with asbestos are the usual carriers that cause cross-contamination. (harcourthealth.com)
  • Asbestos cement was a common construction material for water pipes during the twentieth century, as a replacement for metal piping that was vulnerable to corrosion. (iwaponline.com)
  • Municipalities with soft water supply are vulnerable to cement pipe decay and we observed high corrosion rates of 0.20 mm a −1 averaged over a lifetime from asbestos pipes. (iwaponline.com)
  • identified that the peak age for asbestos cement pipe failure is those installed approximately 60 to 80 years ago. (iwaponline.com)
  • Introduction: The asbestos industry began its operations in Colombia in 1942 with the establishment of an asbestos-cement facility in Sibaté, located in the Department of Cundinamarca. (bvsalud.org)
  • Finally, we assess the potential application of the solutions and methods already developed in Italy in a city in Colombia with high mesothelioma incidence associated with the production of asbestos-cement materials and the presence of diffuse environmental asbestos pollution. (bvsalud.org)
  • Asbestos related diseases, particularly malignant mesothelioma, lung cancer and pneumoconiosis, continue to be the main causes of excess mortality in the former blue asbestos miners and millers of Wittenoom. (bmj.com)
  • Asbestos is a natural mineral that develops in various rock formations all over the world, including in the eastern and western U.S. For decades, companies used asbestos in many products, including building materials and household items-even after they knew that all types of asbestos cause serious diseases, including mesothelioma. (elslaw.com)
  • Mesothelioma is cancer resulting from exposure to asbestos products that requires aggressive treatment. (ferrocanada.com)
  • and mesothelioma, another cancer associated with asbestos exposure. (onepetro.org)
  • Learn more about asbestos exposure and mesothelioma. (mesothelioma.com)
  • Misinformation surrounds the disease and its cause, asbestos, as well as treatment and legal options for those affected by mesothelioma. (mesothelioma.com)
  • By dispelling these myths, we hope to highlight the dangers of asbestos, the risk of mesothelioma, and the medical and legal options available to those harmed by a dangerous mineral. (mesothelioma.com)
  • Mesothelioma is a rare form of cancer caused by asbestos exposure. (mesothelioma.com)
  • MYTH: Mesothelioma is the only disease caused by asbestos exposure. (mesothelioma.com)
  • Asbestos exposure causes diseases besides mesothelioma. (mesothelioma.com)
  • In addition to mesothelioma, the International Agency for Research on Cancer (IARC) reports asbestos exposure as a definitive cause of lung cancer, ovarian cancer and laryngeal cancer. (mesothelioma.com)
  • However, the biological and physical changes caused by asbestos can take years to develop into mesothelioma. (mesothelioma.com)
  • Mesothelioma and other asbestos diseases have a long latency period . (mesothelioma.com)
  • The eighth International Mesothelioma Interest Group (IMIG) meeting was held in Chicago, IL, United States, in 19-22 October 2006 to discuss mesothelioma - the cancer often linked to asbestos exposure. (nature.com)
  • This makes asbestos and mesothelioma research a public health issue in addition to a medical problem. (nature.com)
  • The result is a comprehensive review of the research field of asbestos carcinogenesis and mesothelioma, and of the progress that has been made in recent years in both basic and clinical sciences. (nature.com)
  • however, mesothelioma has been found among individuals exposed to asbestos in some nonoccupational settings. (ilga.gov)
  • This extreme rise of asbestos imports corresponds with the recent rapid increase in mortality of malignant pleural mesothelioma. (nih.gov)
  • Mesothelioma is a cancer that develops from the mesothelium, a thin layer of tissue covering many internal organs, and is mostly attributed to asbestos exposure. (edu.au)
  • Mesothelioma Cancer - This is a rare type of cancer that originated from asbestos exposure. (harcourthealth.com)
  • Although it was no secret among asbestos manufacturers, the harmful effects of mesothelioma were not widely publicized until the early 1970s. (mesothelioma-attorney.com)
  • In 2011, a California man sued his former employer, the Johns-Manville Corporation, for the asbestos exposure that led him to develop mesothelioma. (braytonlaw.com)
  • Over a period of years continual exposure to asbestos can cause very serious health problems, such as mesothelioma. (mesotheliomalegalreview.com)
  • Mesothelioma is a rare type of carcinoma of the membrane that lines numerous cavities of the body, including the lungs, abdomen and heart, and has been associated with exposure to asbestos dust. (mesotheliomalegalreview.com)
  • This mesothelioma and asbestos website was authored by attorney David Slepkow. (mesotheliomalegalreview.com)
  • Need an Asbestos Lawyer for a Mesothelioma Lawsuit? (carlsonattorneys.com)
  • Find out if you qualify by contacting our firm today to schedule a free consultation about an asbestos exposure lawsuit with a mesothelioma lawyer on our team. (carlsonattorneys.com)
  • It is in your best interest to contact a qualified asbestos and mesothelioma lawyer to discuss your options. (carlsonattorneys.com)
  • Mesothelioma lawsuits help cancer patients get the money they deserve from the parties responsible for exposing them to asbestos. (carlsonattorneys.com)
  • Asbestos exposure has a strong association with several potentially fatal illnesses, the most serious of which is malignant mesothelioma. (carlsonattorneys.com)
  • Mesothelioma Pleural mesothelioma, a rare, primary cancer of mesothelial serosa, is caused by asbestos exposure in the great majority of cases. (merckmanuals.com)
  • Strongly associated with exposure to crocidolite, or blue asbestos, mesothelioma is a malignant cancer. (bpic.com.au)
  • Wagner et al connected asbestos to mesothelioma in a classic 1960 study of 33 patients with mesothelioma who were exposed to asbestos in a mining area in South Africa's North Western Cape Province. (medscape.com)
  • The clinical latency period between asbestos exposure and mesothelioma development is 35-40 years, and as a result, the number of mesothelioma patients has continued to rise despite decreased asbestos production. (medscape.com)
  • A clinical history of asbestos exposure and radiologic findings that are consistent with mesothelioma warrant inclusion of mesothelioma in the differential diagnosis, but it is important to stress that a diagnosis of mesothelioma cannot be made exclusively with imaging studies. (medscape.com)
  • More common diseases, such as benign asbestos-related pleural disease and metastatic adenocarcinoma , can look radiographically identical to mesothelioma. (medscape.com)
  • The radiographic findings of mesothelioma are nonspecific and are observed in other diseases, including metastatic carcinoma, lymphoma, and benign asbestos disease. (medscape.com)
  • Calcified pleural plaques are present in 20% of patients with mesothelioma and are usually related to the previous asbestos exposure. (medscape.com)
  • The most recent IARC Monograph on this topic concluded that there is sufficient evidence that asbestos causes cancers of the lung, larynx, and ovary as well as mesothelioma ( 1 ). (who.int)
  • The Colombian health information system, known as SISPRO, did not report mesothelioma cases diagnosed in the municipality, posing a significant challenge in understanding the health impacts of asbestos exposure on the population of Sibaté. (bvsalud.org)
  • Results: The active surveillance strategy successfully identified a mesothelioma cluster in Sibaté, revealing the inadequacy of the existing health information system in monitoring asbestos-related diseases. (bvsalud.org)
  • Active surveillance strategies can play a crucial role in identifying mesothelioma clusters and enhancing our understanding of the health effects of asbestos exposure in low- and middle-income countries. (bvsalud.org)
  • Italy issued an asbestos ban in 1992, following the dramatic observation of a large increase in mortality from mesothelioma and other asbestos-related diseases in exposed workers and also in subjects with non-occupational exposure. (bvsalud.org)
  • A mesothelioma registry was also organized and still monitors the occurrence of mesothelioma cases, conducting a case-by-case evaluation of asbestos exposure. (bvsalud.org)
  • Even with government regulation, people have filed asbestos-related lawsuits regularly since the 1960s and continue to do so today. (findlaw.com)
  • The support from Indian government representatives in Geneva is contrary to the interests of Indian workers and citizens many of whom are contracting asbestos-related diseases, says Ravi Agarwal, director, Toxics Link. (minesandcommunities.org)
  • These studies were conducted on the population of Libby, Montana, where mining, transportation, and processing of asbestos-contaminated vermiculite caused an increased risk of asbestos-related pleural and lung diseases. (medscape.com)
  • Limited environmental data of the working places in asbestos textile factories suggests that heavy asbestos exposure in the past made deaths from respiratory diseases. (nih.gov)
  • Many studies and research were conducted in the past to verify the risk of asbestos and found that prolonged and heavy exposure to asbestos may cause cancer and other different diseases. (harcourthealth.com)
  • Many studies have been conducted involving the risks of diseases caused by exposure to asbestos. (mesotheliomalegalreview.com)
  • therefore, patients with pleural plaques should be monitored for the development of other asbestos-related diseases. (merckmanuals.com)
  • The World Health Assembly, in Resolution WHA 60.26, requested the World Health Organization (WHO) to conduct global campaigns for the elimination of asbestos-related diseases. (who.int)
  • This strategy involved conducting door-to-door health and socioeconomic structured interviews to identify Asbestos-Related Diseases (ARDs). (bvsalud.org)
  • Conclusion: The findings of this study emphasize the urgent need for Colombia to establish a reliable epidemiological surveillance system for asbestos-related diseases (ARDs). (bvsalud.org)
  • The Environmental Protection Agency instructs individuals who believe they have identified asbestos materials to leave the materials alone and to immediately isolate the area. (mesotheliomasymptoms.com)
  • Amosite and crocidolite are generally considered to be the most toxic. (onepetro.org)
  • Leaching in acid slightly increased the toxicity of amosite and crocidolite and greatly decreased the toxicity of chrysotile. (epa.gov)
  • You do not need an asbestos removal license if removal and reattachment do not cause exposure to asbestos dust. (tyosuojelu.fi)
  • Around 5 percent of lung cancer cases are linked to asbestos exposure. (harcourthealth.com)
  • Asbestos is a naturally formed fibrous silicate mineral. (ferrocanada.com)
  • However, it may vary and can possibly go higher due to the asbestos content of rocks that eroded, which are the main source of naturally occurring asbestos in the air. (harcourthealth.com)
  • Asbestos is a naturally occurring mineral that is present everywhere in the world, and has been for a long time. (compleatrestorations.com)
  • Asbestos is a fibrous mineral that occurs naturally. (mesothelioma-attorney.com)
  • Overview of Asbestos-Related Disorders Asbestos is the collective name for a group of naturally occurring silicates whose heat-resistant and structural properties are useful in construction and insulating and other materials on board. (merckmanuals.com)
  • Asbestos is a family of naturally occurring silicates whose heat-resistant and structural properties are useful in construction and shipbuilding materials, automobile brakes, and some textiles. (merckmanuals.com)
  • Asbestos is a naturally occurring silicate with ultrafine fibrils, which, when bound together, substantially increase tensile strength, and are highly efficacious against thermal and chemical breakdown ( Sporn 2013 ). (iwaponline.com)
  • Like naturally occurring asbestos, deposits are present in many Western states (see map). (cdc.gov)
  • All work with asbestos needs to be carried out with the appropriate controls in place, and those carrying out the work must have had the correct level of information, instruction and training to protect themselves (and others in the area) from the risks to health that exposure to asbestos causes. (newcastle.gov.uk)
  • Probably the greatest of these risks is that lung-related problems and cancer are linked to prolonged exposure of asbestos. (harcourthealth.com)
  • As you can see, asbestos may be present in your daily environment, which can pose several health risks. (harcourthealth.com)
  • Proper use of Personal Protective Equipment (PPE) has been proven to greatly reduce risks associated with asbestos exposure. (envirosafetyproducts.com)
  • Firemen, demolition workers, drywall removers, and any other workers in trades that involve destruction of buildings, ships, and automobiles are also exposed to the hazards and risks of asbestos. (mesotheliomalegalreview.com)
  • The results of one such study involving the risks of smoking and e xposure to asbestos proved extremely hazardous. (mesotheliomalegalreview.com)
  • Production slowed dramatically in the 1970s as the health risks of asbestos became known. (medscape.com)
  • There's no way to heal the damage asbestos causes to the small sacs (alveoli) of the lungs. (webmd.com)
  • Because of its fibrous nature, asbestos produces dust that, when inhaled, becomes deposited in the lungs. (findlaw.com)
  • This study investigated effects of four fibrous materials, i.e. nanofibrillar/nanocrystalline celluloses (NCF and CNC), single-walled carbon nanotube s (CNTs), and crocidolite asbestos (ASB), on pulmonary inflammation and immune responses found in the lungs, as well as the effects on spleen and peripheral blood immune cell subsets. (cdc.gov)
  • In fact, Roman scholar Pliny the Elder documented that the workers who mined asbestos became ill.Greek geographer Strabo noted that workers who wove asbestos cloth suffered from a "sickness of the lungs. (compleatrestorations.com)
  • Cleavage fragments (CF) are chemically identical to asbestiform varieties (or habits) of the parent mineral, but no consensus exists on whether to treat them as asbestos from toxicological and regulatory standpoints. (cdc.gov)
  • 2005). SV40 enhances the risk of malignant mesohelioma among people exposed to asbestos: a molecular epidemiological case-control study. (nature.com)
  • Asbestos can cause nonmalignant and malignant disease. (msdmanuals.com)
  • Asbestos is friable, meaning it breaks apart and becomes airborne quickly. (ferrocanada.com)
  • Mishandled materials which unknowingly contained asbestos may be made more dangerous by disturbing the friable particles, allowing them to enter the air as a lethal dust which can be easily inhaled or ingested. (mesotheliomasymptoms.com)
  • Asbestos supervisor" means an asbestos abatement contractor, foreman, or person designated as the asbestos abatement contractor's representative who is responsible for the onsite supervision of the removal, encapsulation, or enclosure of friable or nonfriable asbestos-containing materials in a commercial or public building. (ilga.gov)
  • Friable Asbestos-Containing Materials are regulated due to the high potential for asbestos fiber release and exposure to human health and should be avoided or professionally removed and disposed of. (mt.gov)
  • This administrative regulation provides for the control of asbestos emissions in schools by requiring local education agencies to submit management plans to provide for the adequate identification and assessment of asbestos in schools and the removal or other appropriate treatment of friable asbestos-containing materials. (ky.gov)
  • The movement of the asbestos must comply with the Hazardous Waste (England and Wales) Regulations 2005. (newcastle.gov.uk)
  • We urge the Indian Government to consult with groups representing Indian workers and with officials such as Mrs. Sushma Swaraj who will report the reality of India's asbestos epidemic and not the mistruths being spread by a greedy and hazardous industry. (minesandcommunities.org)
  • While it's true that some types of asbestos are more hazardous than others, every type is still toxic and poses serious health dangers. (compleatrestorations.com)
  • In the 1970's, asbestos exposure was officially linked to thousands of cases of respiratory disease, and was therefore deemed hazardous. (envirosafetyproducts.com)
  • Its beauty is in sharp contrast to its reputation as asbestos, which is listed as most hazardous to health. (depositsmag.com)
  • It is well known that asbestos is very hazardous to health. (depositsmag.com)
  • Being a variety of asbestos, does this mean that Tiger's eye is hazardous to wear or touch? (depositsmag.com)
  • Heavy exposures to asbestos can occur in the construction or shipping industries, particularly during the removal of asbestos materials for renovation, repairs, or demolition. (medscape.com)
  • OSHA estimates that 1.3 million employees in construction and general industry have significant asbestos exposure on the job-those workers involved in construction, renovation, and demolition have the most risk of exposure. (onepetro.org)
  • Today, construction workers are the most heavily exposed from maintenance, renovation, and demolition of buildings insulated with asbestos years ago. (haz-map.com)
  • 3) "Asbestos project" means the encapsulation, enclosure, removal, repair, renovation, placement in new construction, demolition of asbestos in a building or other structure, or the transportation or disposal of asbestos-containing waste. (mt.gov)
  • The Asbestos Control Program is responsible for issuing Asbestos Project Permits and Demolition Acknowledgments for facility renovation and demolition activities while upholding the training and accreditation programs for all asbestos-related occupations in the state of Montana. (mt.gov)
  • All facilities must be thoroughly inspected by a Montana-accredited asbestos inspector before renovation or demolition activities, regardless of the age of construction. (mt.gov)
  • The asbestos inspection report must be onsite for all renovation and demolition activities. (mt.gov)
  • The owner or operator must use a Montana-accredited asbestos contractor(s) to identify, remove, and dispose of the ACM before renovation or demolition activities begin. (mt.gov)
  • Demolition and renovation jobs also contain a higher risk of exposure to asbestos, especially for older buildings or properties. (harcourthealth.com)
  • For this reason, the U.S. government has banned all new uses of asbestos. (webmd.com)
  • However, because of health concerns, the United States temporarily banned all new uses of asbestos in July 1989. (findlaw.com)
  • Even though some uses of asbestos are legal, most manufacturers have avoided using it to limit their legal exposure. (findlaw.com)
  • In the United States the Environmental Protection Agency (EPA) has banned all new uses of asbestos because of proven health hazards. (mesothelioma-attorney.com)
  • In 1989 all new uses of asbestos were banned by the Environmental Protection Agency while any old uses before that year were still permitted. (mesotheliomalegalreview.com)
  • 225 ILCS 207/ Commercial and Public Building Asbestos Abatement Act. (ilga.gov)
  • Asbestos abatement contractor" means any entity that provides removal, enclosure, encapsulation, or disposal of asbestos containing materials. (ilga.gov)
  • Asbestos professional" means an individual who is licensed by the Department to perform the duties of an inspector, management planner, project designer, project supervisor, project manager, or air sampling professional, as applicable, except project supervisors under the direct employ of a licensed asbestos abatement contractor. (ilga.gov)
  • Accreditation certificate" means a certificate issued by the cabinet attesting to the qualifications of an individual to perform specified asbestos abatement projects. (ky.gov)
  • Asbestos abatement project" means any project intended to identify, assess, plan for, or respond to an asbestos hazard in a school building. (ky.gov)
  • Respirators - A respirator rated specifically for asbestos abatement by the NIOSH should be worn at all times. (envirosafetyproducts.com)
  • What Should You Do if Your Home Contains Asbestos? (webmd.com)
  • Investigating contents is one way to determine if a product contains asbestos. (findlaw.com)
  • Asbestos, or fibrous dust, is created and released into the ambient air by the breaking, crushing, grinding, drilling, or general abrasive handling of a solid material that has fibrous components. (onepetro.org)
  • Multiple asbestos types often occur together. (elslaw.com)
  • Moreover, studies indicate that asbestos-related abnormalities occur more often in individuals who test positive for antinuclear antibodies (ANAs) than they do in persons who test negative for them. (medscape.com)
  • This negligence can occur as a result of heavy exposure to asbestos and inadequate protection. (carlsonattorneys.com)
  • Benign asbestos pleural effusions (BAPE) are typically unilateral and occur ≥ 10 years after initial asbestos exposure. (merckmanuals.com)
  • Due to the long latency between exposure and disease, asbestos-related disease continues to occur. (msdmanuals.com)
  • These generally occur earlier than other asbestos-related lung disease, usually within 10 years of exposure. (msdmanuals.com)
  • is the most common type of cancer associated with asbestos exposure. (msdmanuals.com)
  • Blue asbestos was mined and milled at Wittenoom in Western Australia between 1943 and 1966. (bmj.com)
  • Located in Western Australia and rich in crocidolite - blue, or wooly stone asbestos, Wittenoom shipped "more than 150,000 tonnes (165,000 tons) of asbestos from 1943 to 1966. (bpic.com.au)
  • The annual number of compensated occupational respiratory cancers due to asbestos exposure has also been increasing. (nih.gov)
  • The Monograph also reported that positive associations have been observed between asbestos and cancers of the stomach, pharynx, and colorectum. (who.int)
  • Estimation of the risk of cancers of the ovary and larynx (recently classified as asbestos-related cancers) and other cancers, especially those for which there is some evidence of an association with chrysotile (cancers of the pharynx, stomach, and colorectum). (who.int)
  • First, asbestos-related cancers typically arise several decades after first exposure. (who.int)
  • In the past, the highest exposures occurred in insulators, shipyard workers, and other workers manufacturing asbestos products. (haz-map.com)
  • Therefore, asbestos exposures are presented for 1979-1986, 1987-1994, and for 1995 onwards. (cdc.gov)
  • Risk of lung cancer due to asbestos exposure increases with larger cumulative exposures. (msdmanuals.com)
  • Title : Carbon nanotube and asbestos exposures induce overlapping but distinct profiles of lung pathology in non-swiss Albino CF-1 mice Personal Author(s) : Frank, Evan A.;Carreira, Vinicius S.;Birch, M. Eileen;Yadav, Jagjit S. (cdc.gov)
  • In 1990, the Environmental Protection Agency banned the use of spray-on materials that contained more than one percent asbestos in buildings, structures, and other applications. (findlaw.com)
  • If a material contains quantities greater than 1 percent asbestos, it is classified as an Asbestos-Containing Material . (mt.gov)
  • Asbestos-containing material" or "ACM" means, when referring to school buildings, any material or product which contains more than one (1) percent asbestos by area. (ky.gov)
  • Bilateral pleural plaques and/or calcification of the diaphragm are virtually pathognomonic of previous exposure to asbestos. (merckmanuals.com)
  • Asbestos-related pleural plaques are the most common manifestation of asbestos exposure. (msdmanuals.com)
  • Often pleural plaques are asymptomatic, although because they result from asbestos exposure, they increase the risk of other asbestos-related lung disease. (msdmanuals.com)
  • Fibrous nanocellulose, crystalline nanocellulose, carbon nanotube s, and crocidolite asbestos elicit disparate immune responses upon pharyngeal aspiration in mice. (cdc.gov)
  • Most products made in the U.S. today are asbestos-free. (webmd.com)
  • But in the past, many types of home-building products and materials had asbestos in them. (webmd.com)
  • That means it's found in fewer products and materials than other asbestos types. (elslaw.com)
  • Manufacturers once added asbestos to various consumer and construction products, ranging from building materials to brake pads. (findlaw.com)
  • For many years, companies used asbestos in hundreds, if not thousands, of products and applications. (findlaw.com)
  • Since manufacturers typically fuse asbestos into finished products, you may not recognize asbestos when you encounter it. (findlaw.com)
  • One of the best ways to avoid lung disease and other illnesses caused by asbestos is to avoid asbestos-containing products. (findlaw.com)
  • They prohibited the import, supply and use of all types of asbestos and also continued to ban the second hand use of asbestos products such as asbestos boards and tiles. (wikipedia.org)
  • Companies produced and sold millions of tons of asbestos-containing products in the 20th century. (ferrocanada.com)
  • It isn't as heat-resistant as other types of asbestos, so it isn't used as often in industrial products. (ferrocanada.com)
  • Asbestos can take on many different appearances, depending on the products it is found in. (mesotheliomasymptoms.com)
  • This site -- provided as a public service by classactionlitigation.com -- is dedicated to the victims of an industry that for decades sold deadly asbestos products to an unsuspecting public. (classactionlitigation.com)
  • Asbestos-containing materials continue to be imported into the states in more than 3,600 products and may not be readily labeled as containing asbestos. (mt.gov)
  • It can also absorb sound and be easily broken to make asbestos-based products. (harcourthealth.com)
  • Asbestos has a great contribution in many industrial products and processes . (harcourthealth.com)
  • For most of the last century, asbestos was mined and used in a variety of household, industrial and building products. (mesothelioma-attorney.com)
  • Read more about products containing asbestos . (mesothelioma-attorney.com)
  • In today's post, we'll discuss The Court's opinion and how it could affect future products liability cases (not just those related to asbestos). (braytonlaw.com)
  • Asbestos found its way into residential and industrial building materials, water supply, sewage materials, ceiling and floor tiles, and vermiculite garden materials to name a few products. (mesotheliomalegalreview.com)
  • Most people do not become sick in the early stages of development, but usually need continued exposure, often on jobs such as mining, milling, manufacturing asbestos products, and building construction. (mesotheliomalegalreview.com)
  • The disease mostly affects people who worked with products containing asbestos. (carlsonattorneys.com)
  • Asbestos mining and production peaked from the 1930s-1960s, and asbestos was used in a variety of products ranging from construction supplies to brake linings. (medscape.com)
  • Despite these changes, asbestos continues to be used in the manufacture of some fire safety products. (medscape.com)
  • In most developed countries, asbestos use has declined over the past several decades, but asbestos can still be found in old building materials and some products. (msdmanuals.com)
  • Asbestos was used in a large number of manufactured products but little is documented about the nature and location of these products. (bvsalud.org)
  • This should serve as a warning to others about the dangers of asbestos and the legal requirement to manage it properly. (wikipedia.org)
  • Keep reading to learn more about the history of asbestos, and the dangers behind it. (compleatrestorations.com)
  • Find out more about the dangers of asbestos exposure . (mesothelioma-attorney.com)
  • But the Court held that SEC failed to show that Johns-Manville knew of the particular dangers of crocidolite. (braytonlaw.com)
  • Despite extensive asbestos use and production in Colombia, the country lacks a reliable epidemiological surveillance system to monitor the health effects of asbestos exposure. (bvsalud.org)
  • This article deals with the Control of Asbestos Regulations 2006 which came into force on 13 November 2006. (wikipedia.org)
  • For the later regulations which came into force on 6th April 2012, see Asbestos and the law - Control of Asbestos Regulations The Control of Asbestos Regulations 2006 came into force in the United Kingdom on 13 November 2006 and brought together a number of other asbestos related pieces of legislation. (wikipedia.org)
  • This has been superseded by The Control of Asbestos Regulations 2012. (wikipedia.org)
  • Key elements of the regulations include a greater emphasis on training requiring anyone who may come into contact with Asbestos in the course of their work to be given suitable training. (wikipedia.org)
  • The recently published 'Asbestos: The survey guide' (HSG264) is complementary to these regulations. (wikipedia.org)
  • The Control of Asbestos 2006 regulations brought together three separate pieces of legislation which covered the prohibition of Asbestos, the control of asbestos at work and asbestos licensing. (wikipedia.org)
  • The regulations require mandatory training to be given to anyone who may be exposed to asbestos whilst at work. (wikipedia.org)
  • Anyone working on asbestos under the regulations must have a license issued by the Health and Safety Executive. (wikipedia.org)
  • On 9 June 2009 a company in Swansea, Val Inco Europe Ltd, pleaded guilty to four charges under the Control of Asbestos Regulations and were fined £12,000 and ordered to pay £28,000 costs. (wikipedia.org)
  • Regulations governing the use of asbestos and concern of public opinion since 1970 have created a significant drop in the use of asbestos in the United States. (mesotheliomalegalreview.com)