Asbestos amosite. Medical search

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)

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)

A lavender, acid-resistant asbestos.

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)

A hydrated form of silicon dioxide. It is commonly used in the manufacture of TOOTHPASTES and as a stationary phase for CHROMATOGRAPHY.

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.

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.

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.

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.

Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)

Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.

Supplies used in building.

The total amount of a chemical, metal or radioactive substance present at any time after absorption in the body of man or animal.

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.

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.

The combination of two or more different factors in the production of cancer.

Tumors or cancer of the LUNG.

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.

Hydrazines substituted with two methyl groups in any position.

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 DNA alkylating agent that has been shown to be a potent carcinogen and is widely used to induce colon tumors in experimental animals.

Relating to the size of solids.

Organic silicon derivatives used to characterize hydroxysteroids, nucleosides, and related compounds. Trimethylsilyl esters of amino acids are used in peptide synthesis.

A vascular connective tissue formed on the surface of a healing wound, ulcer, or inflamed tissue. It consists of new capillaries and an infiltrate containing lymphoid cells, macrophages, and plasma cells.

A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].

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.

Carcinogenic substances that are found in the environment.

Large vessels propelled by power or sail used for transportation on rivers, seas, oceans, or other navigable waters. Boats are smaller vessels propelled by oars, paddles, sail, or power; they may or may not have a deck.

Air pollutants found in the work area. They are usually produced by the specific nature of the occupation.

Pathological processes involving any part of the LUNG.

A risk assessment for exposure to grunerite asbestos (amosite) in an iron ore mine. (1/70)

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)

In situ microscopic analysis of asbestos and synthetic vitreous fibers retained in hamster lungs following inhalation. (2/70)

Hamsters breathed, nose-only, for 13 weeks, 5 days/week, 6 hr/day, either man-made vitreous fiber (MMVF)10a, MMVF33, or long amosite asbestos at approximately 300 World Health Organization (WHO) fibers/cc or long amosite at 25 WHO fibers/cc. [World Health Organization fibers are longer than 5 microm and thicker than 3 microm, with aspect ratio >3.] After sacrifice, fiber burden was estimated (left lungs) by ashing and scanning electron microscopy (ashing/SEM) or (right middle lobes) by confocal laser scanning microscopy (CLSM) in situ. In situ CLSM also provided three-dimensional views of fibers retained, undisturbed, in lung tissue. Fibers of each type were lodged in alveoli and small airways, especially at airway bifurcations, and were seen fully or partly engulfed by alveolar macrophages. Amosite fibers penetrated into and through alveolar septa. Length densities of fibers in parenchyma (total length of fiber per unit volume of lung) were estimated stereologically from fiber transsections counted on two-dimensional optical sections and were 30.5, 25.3, 20.0, and 81.6 mm/mm3 for MMVF10a, MMVF33, and low- and high-dose amosite, respectively. Lengths of individual fibers were measured in three dimensions by tracking individual fibers through series of optical sections. Length distributions of amosite fibers aerosolized, but before inhalation versus after retention in the lung were similar, whether determined by ashing/SEM or in situ CLSM. In contrast, the fraction of short MMVF10a and MMVF33 fibers increased and the geometric mean fiber lengths of both MMVFs decreased by approximately 60% during retention. Most likely due to fiber deposition pattern and differences in sampling, fiber burdens [MMVF10a, MMVF33, and amosite (high dose; 269 WHO fibers/cc)] determined by ashing/SEM were 1.4, 1. 5, and 3.5 times greater, respectively, than those calculated from in situ CLSM data. In situ CLSM is able to provide detailed information about the anatomic sites of fiber retention and also fiber lengths and burdens in good agreement with ashing/SEM results. (+info)

Asbestos induction of extended lifespan in normal human mesothelial cells: interindividual susceptibility and SV40 T antigen. (3/70)

Normal human mesothelial cells from individual donors were studied for susceptibility to asbestos-induction of apoptosis and generation of an extended lifespan population. Such populations were generated after death of the majority of cells and arose from a subset of mesothelial cultures (4/16) whereas fibroblastic cells (5/5) did not develop extended lifespan populations after asbestos exposure. All mesothelial cultures were examined for the presence of SV40 T antigen to obtain information on (i) the presence of SV40 T antigen expression in normal human mesothelial cells and (ii) the relationship between generation of an extended lifespan population and expression of SV40 T antigen. Immunostaining for SV40 T antigen was positive in 2/38 normal human mesothelial cultures. These cultures also had elevated p53 expression. However, the two isolates expressing SV40 T antigen did not exhibit enhanced proliferative potential or develop an extended lifespan population. Asbestos-generated extended lifespan populations were specifically resistant to asbestos-mediated but not to alpha-Fas-induced apoptosis. Deletion of p16Ink4a was shown in 70% of tumor samples. All mesothelioma cell lines examined showed homozygous deletion of this locus which extended to exon 1beta. Extended lifespan cultures were examined for expression of p16Ink4a to establish whether deletion was an early response to asbestos exposure. During their rapid growth phase, extended lifespan cultures showed decreased expression of p16Ink4a relative to untreated cultures, but methylation was not observed, and p16Ink4a expression became elevated when cells entered culture crisis. These data extend the earlier observation that asbestos can generate extended lifespan populations, providing data on frequency and cell type specificity. In addition, this report shows that generation of such populations does not require expression of SV40 T antigen. Extended lifespan cells could represent a population expressing early changes critical for mesothelioma development. Further study of these populations could identify such changes. (+info)

Biopersistence and durability of nine mineral fibre types in rat lungs over 12 months. (4/70)

The study objectives were to assess the ability of intratracheal injection methods to discriminate between nine fibre types in respect of pulmonary biopersistence, and to provide approximate estimates of relative biopersistence and durability for a study of general relationships with biological and toxicological responses. The test fibres included six samples of size-selected fibre types specially prepared for research purposes, two commercially available fibres, and amosite. A 1 mg dose of each fibre type was administered to rats by intratracheal injection. The relative biopersistence of fibres in different size categories was assessed from the changes in mean lung burden, as determined by electron microscopy, at 3 days and 1, 6 and 12 months after injection. The ability of the test materials to resist dissolution was measured in a parallel series of simple in vitro acellular experiments at two pHs and in a continuous flow dissolution test. The observed differences in the persistence of fibres of differing length recovered from rat lungs were consistent with the current hypothesis that short fibres are cleared by cellular processes and long fibres by dissolution and disintegration. Differences in persistence of long (> 20 microns) fibres were correlated with measured rates of dissolution in vitro. Differences in persistence among those fibre types also studied by others workers were consistent with their findings after inhalation and intratracheal injection. Overall, the differences in the biopersistences of the test fibres following intratracheal injection were sufficient to enable an examination of the relationship of biopersistence with other biological and toxicological responses. Biopersistence was influenced by both fibre dimensions and solubility. (+info)

Influence of fibre length, dissolution and biopersistence on the production of mesothelioma in the rat peritoneal cavity. (5/70)

A range of respirable man-made mineral fibres were tested for evidence of carcinogenicity by injection into the peritoneal cavity of male SPF Wistar rats; and differences in carcinogenicity were related to the dimensions and biopersistence of the injected fibres. The fibres tested included an amosite asbestos, a silicon carbide whisker, a special purpose glass microfibre, and a range of other man-made vitreous fibres (MMVFs) and refractory ceramic fibres (RCFs) from the TIMA fibre repository. The injected dose of each was designed as the estimated mass required to contain 10(9) fibres > 5 microns in length, as determined by optical microscopy. The numbers of long fibres (> 15 microns) contained in these doses ranged across fibres from 0.1 x 10(9) to 0.8 x 10(9) fibres; the number of long fibres thinner than 0.95 micron ranged from 0.015 x 10(9) to 0.4 x 10(9). The treatment groups contained between 18 and 24 animals. Animals were killed when they showed signs of debilitation. At autopsy, the diagnosis of mesothelioma was usually obvious macroscopically. Otherwise, histological examination of peritoneal organs was used to search for early tumour development. Judged by median survival time, four of the fibre types, in the doses administered, presented higher mesothelioma activity than amosite asbestos. The other fibres tested were less carcinogenic than the amosite. Only a ceramic material derived by extreme heating to simulate the effect of furnace or oven conditions, produced no mesotheliomas. Attempts were made, using regression models, to relate these differences to fibre dimensions and to measures of durability from separate experiments. The results pointed principally to a link with the injected numbers of fibres > 20 microns in length and with biopersistence in the rat lung of fibres longer than 5 microns. Improved quantification of the relative importance of fibre dimensions and biopersistence indices requires experimentation with a range of doses. (+info)

Impact of acute and subchronic asbestos exposure on some parameters of antioxidant defense system and lung tissue injury. (6/70)

Asbestos fibers have been used in industry for decades. Deleterious effect of asbestos on the lungs has been documented. However, the mechanism of asbestos related diseases has not been fully explained yet. Numerous papers suggest there is a role of reactive oxygen intermediates (ROI) in asbestos-induced lung disease development. The excess ROI produced can be removed from the lungs by enzymatic and nonenzymatic antioxidants. The aim of our study was to compare the levels of antioxidants (ascorbic acid, retinol, alpha-tocopherol, glutathionperoxidase) as well as some markers of lung injury (lipid peroxides, total amount of protein, alkaline phosphatase) in asbestos treated Wistar-rats both 24 hr and 3 months after exposure to those in the controls, and to find out if the changes in antioxidant levels could affect impairment of the lungs. Decreased levels of antioxidants and increased values of lung tissue injury parameters in exposed groups suggest involvement of ROI in the mechanism of asbestos lung disease development, resulting in lung tissue injury, both 24 hr and 3 months after exposure. (+info)

Chemical differences between long and short amosite asbestos: differences in oxidation state and coordination sites of iron, detected by infrared spectroscopy. (7/70)

OBJECTIVES: Short fibres of amosite asbestos (SFA), obtained by ball milling of long fibres (LFA), have been shown to be less pathogenic than long fibres. Accumulating evidence suggests an important role for differences in surface chemistry between fibres. Iron has been implicated in the pathogenesis of asbestos fibres. In this study infrared (IR) spectroscopy was used to compare LFA and SFA in terms of the coordination and oxidation state of iron at the three cation sites (M1, M3, M1). METHODS: Infrared was used to examine LFA ad SFA, when dry and when hydrated in the presence and absence of the chelators desferroxamine and ferrozine. With appropriate software the proportions of iron and its oxidation states in the overlapping peaks were resolved and assigned, and the three coordination sites were identified. Data were obtained from 10 samples of both lengths of fibre for each of the four treatments. Iron release was also monitored. RESULTS: Iron was significantly more oxidised in LFA than SFA. Further oxidation of the dry fibres with water, ferrozine, or desferroxamine tended to abolish these differences. There were also significant differences between the proportions of iron held in the different coordination sites of the fibres. For LFA, a higher proportion of its iron was held in the cation sites coordinating less with iron and more with Mg. Interestingly, the sites coordinating single irons were significantly more oxidised than multiple sites. The single iron sites were more oxidised in LFA than SFA and were more readily oxidised by the treatments. CONCLUSIONS: Important chemical differences between LFA and SFA were found. There seemed to be some mobility of iron near the surface. Based on these data it is speculated that the 1 iron surface site may be important in pathogenesis. (+info)

TNF-alpha increases tracheal epithelial asbestos and fiberglass binding via a NF-kappaB-dependent mechanism. (8/70)

Tumor necrosis factor (TNF)-alpha is released from alveolar macrophages after phagocytosis of mineral fibers. To determine whether TNF-alpha affects the binding of fibers to epithelial cells, we exposed rat tracheal explants to TNF-alpha or to culture medium alone, followed by a suspension of amosite asbestos or fiberglass (MMVF10). Loosely adherent fibers were removed from the surface with a standardized washing technique, and the number of bound fibers was determined by scanning electron microscopy. Increasing doses of TNF-alpha produced increases in fiber binding. This effect was abolished by an anti-TNF-alpha antibody, the proteasome inhibitor MG-132, and the nuclear factor (NF)-kappaB inhibitor pyrrolidine dithiocarbamate. Gel shift and Western blot analyses confirmed that TNF-alpha activated NF-kappaB and depleted IkappaB in this system and that these effects were prevented by MG-132 and pyrrolidine dithiocarbamate. These observations indicate that TNF-alpha increases epithelial fiber binding by a NF-kappaB-dependent mechanism. They also suggest that mineral particles may cause pathological lesions via an autocrine-like process in which the response evoked by particles, for example, macrophage TNF-alpha production, acts to enhance subsequent interactions of particles with tissue. (+info)

The symptoms of mesothelioma can vary depending on the location of the cancer, but they may include:

* Shortness of breath or pain in the chest (for pleural mesothelioma)
* Abdominal pain or swelling (for peritoneal mesothelioma)
* Fatigue or fever (for pericardial mesothelioma)
* Weight loss and night sweats

There is no cure for mesothelioma, but treatment options may include surgery, chemotherapy, and radiation therapy. The prognosis for mesothelioma is generally poor, with a five-year survival rate of about 5% to 10%. However, the outlook can vary depending on the type of mesothelioma, the stage of the cancer, and the patient's overall health.

Asbestos exposure is the primary risk factor for developing mesothelioma, and it is important to avoid exposure to asbestos in any form. This can be done by avoiding old buildings and products that contain asbestos, wearing protective clothing and equipment when working with asbestos, and following proper safety protocols when handling asbestos-containing materials.

In summary, mesothelioma is a rare and aggressive form of cancer that develops in the lining of the heart or abdomen due to exposure to asbestos. It can be difficult to diagnose and treat, and the prognosis is generally poor. However, with proper medical care and avoidance of asbestos exposure, patients with mesothelioma may have a better chance of survival.

There are several types of asbestos, including chrysotile, amianthus, and crocidolite, each of which has different levels of toxicity. Prolonged exposure to any type of asbestos can cause asbestosis, but some types are more dangerous than others.

Symptoms of asbestosis may not appear until many years after exposure to asbestos, and they can vary in severity. Common symptoms include:

* Shortness of breath
* Coughing
* Permanent lung damage
* Scarring of the lungs
* Decreased lung function

Treatment for asbestosis usually involves managing symptoms and improving lung function. This can include medications to relieve coughing and shortness of breath, pulmonary rehabilitation to improve lung function, and oxygen therapy to help increase oxygen levels in the blood. In severe cases, lung transplantation may be necessary.

Prevention is key in avoiding asbestosis. If you suspect that you have been exposed to asbestos, it is important to speak with a healthcare professional as soon as possible. Proper safety measures and precautions can help minimize the risk of developing asbestosis.

Benign pleural neoplasms include:

1. Pleomorphic adenoma: A rare, slow-growing tumor that usually occurs in the soft tissues of the chest wall.
2. Pneumoschisis: A condition where there is a tear or separation in the membrane that lines the lung, which can cause air to leak into the pleural space and create a benign tumor.
3. Pleural plaques: Calcified deposits that form in the pleura as a result of inflammation or injury.

Malignant pleural neoplasms include:

1. Mesothelioma: A rare and aggressive cancer that originates in the pleura, usually caused by exposure to asbestos.
2. Lung cancer: Cancer that spreads to the pleura from another part of the body, such as the lungs.
3. Metastatic tumors: Tumors that have spread to the pleura from another part of the body, such as the breast or colon.

Pleural neoplasms can cause a variety of symptoms, including chest pain, shortness of breath, coughing, and fatigue. Diagnosis is typically made through a combination of imaging tests, such as CT scans and PET scans, and a biopsy to confirm the presence of cancerous cells. Treatment options for pleural neoplasms depend on the type and stage of the tumor, and may include surgery, chemotherapy, and radiation therapy.

Some common types of pleural diseases include:

1. Pleurisy: This is an inflammation of the pleura that can be caused by infection, injury, or cancer. Symptoms include chest pain, fever, and difficulty breathing.
2. Pneumothorax: This is a collection of air or gas between the pleural membranes that can cause the lung to collapse. Symptoms include sudden severe chest pain, shortness of breath, and coughing up blood.
3. Empyema: This is an infection of the pleural space that can cause the accumulation of pus and fluid. Symptoms include fever, chills, and difficulty breathing.
4. Mesothelioma: This is a type of cancer that affects the pleura and can cause symptoms such as chest pain, shortness of breath, and weight loss.
5. Pleural effusion: This is the accumulation of fluid in the pleural space that can be caused by various conditions such as infection, heart failure, or cancer. Symptoms include chest pain, shortness of breath, and coughing up fluid.

Pleural diseases can be diagnosed through various tests such as chest X-rays, CT scans, and pleuroscopy (a minimally invasive procedure that uses a thin tube with a camera and light on the end to examine the pleura). Treatment options vary depending on the underlying cause of the disease and can include antibiotics, surgery, or radiation therapy.

1. Asbestosis: a lung disease caused by inhaling asbestos fibers.
2. Carpal tunnel syndrome: a nerve disorder caused by repetitive motion and pressure on the wrist.
3. Mesothelioma: a type of cancer caused by exposure to asbestos.
4. Pneumoconiosis: a lung disease caused by inhaling dust from mining or other heavy industries.
5. Repetitive strain injuries: injuries caused by repetitive motions, such as typing or using vibrating tools.
6. Skin conditions: such as skin irritation and dermatitis caused by exposure to chemicals or other substances in the workplace.
7. Hearing loss: caused by loud noises in the workplace.
8. Back injuries: caused by lifting, bending, or twisting.
9. Respiratory problems: such as asthma and other breathing difficulties caused by exposure to chemicals or dust in the workplace.
10. Cancer: caused by exposure to carcinogens such as radiation, certain chemicals, or heavy metals in the workplace.

Occupational diseases can be difficult to diagnose and treat, as they often develop gradually over time and may not be immediately attributed to the work environment. In some cases, these diseases may not appear until years after exposure has ended. It is important for workers to be aware of the potential health risks associated with their job and take steps to protect themselves, such as wearing protective gear, following safety protocols, and seeking regular medical check-ups. Employers also have a responsibility to provide a safe work environment and follow strict regulations to prevent the spread of occupational diseases.

There are several types of pulmonary fibrosis, including:

1. Idiopathic pulmonary fibrosis (IPF): This is the most common and severe form of the disease, with no known cause or risk factors. It is characterized by a rapid decline in lung function and poor prognosis.
2. Connective tissue disease-associated pulmonary fibrosis: This type is associated with conditions such as rheumatoid arthritis, systemic lupus erythematosus, and scleroderma.
3. Drug-induced pulmonary fibrosis: Certain medications, such as amiodarone and nitrofurantoin, can cause lung damage and scarring.
4. Radiation-induced pulmonary fibrosis: Exposure to high doses of radiation, especially in childhood, can increase the risk of developing pulmonary fibrosis later in life.
5. Environmental exposures: Exposure to pollutants such as silica, asbestos, and coal dust can increase the risk of developing pulmonary fibrosis.

Symptoms of pulmonary fibrosis include shortness of breath, coughing, and fatigue. The disease can be diagnosed through a combination of imaging tests such as chest X-rays, computed tomography (CT) scans, and magnetic resonance imaging (MRI), as well as lung biopsy.

Treatment options for pulmonary fibrosis are limited and vary depending on the underlying cause of the disease. Medications such as pirfenidone and nintedanib can help slow the progression of the disease, while lung transplantation may be an option for advanced cases.

Cocarcinogenesis can occur through various mechanisms, such as:

1. Synergistic effects: The combined effect of two or more substances is greater than the sum of their individual effects. For example, smoking and exposure to asbestos can increase the risk of lung cancer more than either factor alone.
2. Antagonism: One substance may counteract the protective effects of another substance, leading to an increased risk of cancer. For example, alcohol consumption may antagonize the protective effects of a healthy diet against liver cancer.
3. Potentiation: One substance may enhance the carcinogenic effects of another substance. For example, smoking can potentiate the carcinogenic effects of exposure to certain chemicals in tobacco smoke.
4. Multistage carcinogenesis: Cocarcinogens can contribute to the development of cancer through multiple stages of carcinogenesis, including initiation, promotion, and progression.

Understanding cocarcinogenesis is important for developing effective cancer prevention strategies and for identifying potential co-carcinogens in our environment and diet. By identifying and avoiding co-carcinogens, we can reduce our risk of cancer and improve our overall health.

There are several types of lung neoplasms, including:

1. Adenocarcinoma: This is the most common type of lung cancer, accounting for approximately 40% of all lung cancers. It is a malignant tumor that originates in the glands of the respiratory tract and can be found in any part of the lung.
2. Squamous cell carcinoma: This type of lung cancer accounts for approximately 25% of all lung cancers and is more common in men than women. It is a malignant tumor that originates in the squamous cells lining the airways of the lungs.
3. Small cell lung cancer (SCLC): This is a highly aggressive form of lung cancer that accounts for approximately 15% of all lung cancers. It is often found in the central parts of the lungs and can spread quickly to other parts of the body.
4. Large cell carcinoma: This is a rare type of lung cancer that accounts for only about 5% of all lung cancers. It is a malignant tumor that originates in the large cells of the respiratory tract and can be found in any part of the lung.
5. Bronchioalveolar carcinoma (BAC): This is a rare type of lung cancer that originates in the cells lining the airways and alveoli of the lungs. It is more common in women than men and tends to affect older individuals.
6. Lymphangioleiomyomatosis (LAM): This is a rare, progressive, and often fatal lung disease that primarily affects women of childbearing age. It is characterized by the growth of smooth muscle-like cells in the lungs and can lead to cysts, lung collapse, and respiratory failure.
7. Hamartoma: This is a benign tumor that originates in the tissue of the lungs and is usually found in children. It is characterized by an overgrowth of normal lung tissue and can be treated with surgery.
8. Secondary lung cancer: This type of cancer occurs when cancer cells from another part of the body spread to the lungs through the bloodstream or lymphatic system. It is more common in people who have a history of smoking or exposure to other carcinogens.
9. Metastatic cancer: This type of cancer occurs when cancer cells from another part of the body spread to the lungs through the bloodstream or lymphatic system. It is more common in people who have a history of smoking or exposure to other carcinogens.
10. Mesothelioma: This is a rare and aggressive form of cancer that originates in the lining of the lungs or abdomen. It is caused by asbestos exposure and can be treated with surgery, chemotherapy, and radiation therapy.

Lung diseases can also be classified based on their cause, such as:

1. Infectious diseases: These are caused by bacteria, viruses, or other microorganisms and can include pneumonia, tuberculosis, and bronchitis.
2. Autoimmune diseases: These are caused by an overactive immune system and can include conditions such as sarcoidosis and idiopathic pulmonary fibrosis.
3. Genetic diseases: These are caused by inherited mutations in genes that affect the lungs and can include cystic fibrosis and primary ciliary dyskinesia.
4. Environmental diseases: These are caused by exposure to harmful substances such as tobacco smoke, air pollution, and asbestos.
5. Radiological diseases: These are caused by exposure to ionizing radiation and can include conditions such as radiographic breast cancer and lung cancer.
6. Vascular diseases: These are caused by problems with the blood vessels in the lungs and can include conditions such as pulmonary embolism and pulmonary hypertension.
7. Tumors: These can be benign or malignant and can include conditions such as lung metastases and lung cancer.
8. Trauma: This can include injuries to the chest or lungs caused by accidents or other forms of trauma.
9. Congenital diseases: These are present at birth and can include conditions such as bronchopulmonary foregut malformations and congenital cystic adenomatoid malformation.

Each type of lung disease has its own set of symptoms, diagnosis, and treatment options. It is important to seek medical attention if you experience any persistent or severe respiratory symptoms, as early diagnosis and treatment can improve outcomes and quality of life.

Some common types of lung diseases include:

1. Asthma: A chronic condition characterized by inflammation and narrowing of the airways, leading to wheezing, coughing, and shortness of breath.
2. Chronic Obstructive Pulmonary Disease (COPD): A progressive condition that causes chronic inflammation and damage to the airways and lungs, making it difficult to breathe.
3. Pneumonia: An infection of the lungs that can be caused by bacteria, viruses, or fungi, leading to fever, chills, coughing, and difficulty breathing.
4. Bronchiectasis: A condition where the airways are damaged and widened, leading to chronic infections and inflammation.
5. Pulmonary Fibrosis: A condition where the lungs become scarred and stiff, making it difficult to breathe.
6. Lung Cancer: A malignant tumor that develops in the lungs, often caused by smoking or exposure to carcinogens.
7. Cystic Fibrosis: A genetic disorder that affects the respiratory and digestive systems, leading to chronic infections and inflammation in the lungs.
8. Tuberculosis (TB): An infectious disease caused by Mycobacterium Tuberculosis, which primarily affects the lungs but can also affect other parts of the body.
9. Pulmonary Embolism: A blockage in one of the arteries in the lungs, often caused by a blood clot that has traveled from another part of the body.
10. Sarcoidosis: An inflammatory disease that affects various organs in the body, including the lungs, leading to the formation of granulomas and scarring.

These are just a few examples of conditions that can affect the lungs and respiratory system. It's important to note that many of these conditions can be treated with medication, therapy, or surgery, but early detection is key to successful treatment outcomes.

... "pure asbestos") Gasket, containing nearly unbound asbestos Amphiboles including amosite (brown asbestos) and crocidolite (blue ... Chrysotile asbestos Asbestos fibers Asbestos Blue asbestos (crocidolite), the ruler is 1 cm Blue asbestos, teased to show the ... asbestos) AIB: Asbestos insulating board (AIB) Asbestine Asbestos abatement Asbestos Disease Awareness Organization Medical ... Amosite and crocidolite are considered the most hazardous asbestos fiber types; however, chrysotile asbestos has also produced ...

https://en.wikipedia.org/wiki/Asbestos

"Pleural mesothelioma resulting from exposure to amosite asbestos in a building". Respiratory Medicine. 83 (3): 237-239. doi: ... Nancy Tait taught herself about asbestos, then began to write her own asbestos literature. In 1976 she published the booklet " ... SPAID lobbied for tighter asbestos controls, for fairer compensation, for better death reporting and asbestos death statistics ... the first of a string of asbestos action groups and asbestos victims support groups worldwide. ...

https://en.wikipedia.org/wiki/Nancy_Tait

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 ...

https://en.wikipedia.org/wiki/Health_impact_of_asbestos

1989) Inflammation generating potential of long and short fibre amosite asbestos samples. British Journal of Industrial ... An extensive programme of research on the toxicology of fibres has shown that persistence of some asbestos fibres in the lung ... It specializes in asbestos surveys and services, occupational hygiene services, nanotechnology safety, laboratory analysis and ... In 1979 the IOM was appointed by the Health and Safety Executive as the British Central Reference Laboratory for asbestos fibre ...

https://en.wikipedia.org/wiki/Institute_of_Occupational_Medicine

"Biopersistence of Synthetic Vitreous Fibers and Amosite Asbestos in the Rat Lung Following Inhalation". Toxicology and Applied ...

https://en.wikipedia.org/wiki/Glass_fiber

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 ...

https://en.wikipedia.org/wiki/Asbestos_insulating_board

In May 1997, the manufacture and use of crocidolite and amosite, commonly known as blue and brown asbestos, were fully banned ... 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 ... Canada introduces new asbestos rules "The Government of Canada takes measures to ban asbestos and asbestos‑containing products ...

https://en.wikipedia.org/wiki/Asbestos_and_the_law

... white asbestos), the most common; Amosite (brown asbestos) which can often be found in ceiling tiles and as a fire retardant in ... 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 ...

https://en.wikipedia.org/wiki/Control_of_Asbestos_Regulations_2006

The cummingtonite/grunerite series is often termed amosite or "brown asbestos", and riebeckite is known as crocidolite or "blue ... US Geological Survey, Asbestos, accessed 20 July 2015. Nesse 2000, p. 242. "Health Effects of Asbestos". Agency for Toxic ... The first two are blue fibrous minerals, with glaucophane occurring in blueschists and crocidolite (blue asbestos) in ironstone ... Four of the amphibole minerals are commonly called asbestos. These are: anthophyllite, riebeckite, the cummingtonite/grunerite ...

https://en.wikipedia.org/wiki/Amphibole

The loose-fill amosite asbestos used by Mr Fluffy was especially hazardous, because its lack of a bonding agent allowed it to ... No legal case was ever brought against the Jansen family and the use of amosite asbestos was not banned in Australia until 1989 ... The companies imported and installed fibrous, loose-fill amphibole asbestos, in most cases brown amosite from South Africa, ... Heritage-listed Canberra homestead demolished due to Mr Fluffy asbestos". ABC News. Retrieved 26 March 2022. ACT Asbestos ...

https://en.wikipedia.org/wiki/Mr_Fluffy

There are some exceptions, for example, NA 2212 is all asbestos with UN 2212 limited to Asbestos, amphibole amosite, tremolite ...

https://en.wikipedia.org/wiki/UN_number

Amosite is a rare asbestiform variety of grunerite that was mined as asbestos only in the eastern part of the Transvaal ... The origin of the name is Amosa, the acronym for the mining company "Asbestos Mines of South Africa". Cummingtonite is commonly ...

https://en.wikipedia.org/wiki/Cummingtonite

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/ ...

https://en.wikipedia.org/wiki/Occupational_hazards_of_fire_debris_cleanup

Amosite is a rare asbestiform variety of grunerite that was mined as asbestos predominantly in the eastern part of the ... The origin of the name is Amosa, the acronym for the mining company "Asbestos Mines of South Africa". Warr, L.N. (2021). "IMA- ... v t e (Commons category link from Wikidata, Inosilicates, Iron(II) minerals, Asbestos, Monoclinic minerals, Minerals in space ...

https://en.wikipedia.org/wiki/Grunerite

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 ...

https://en.wikipedia.org/wiki/Fiber

Hilding and others, "Biological effects of ingested amosite asbestos, taconite tailings, diatomaceous earth and Lake Superior ... Because these conditions can be triggered by industrial asbestos, which was used in taconite mining and processing, as well as ... Thomas R. Huffman, "Enemies of the People, Asbestos and the Reserve Mining Trial" E. E. Sigurson, "Observations of cancer ... District Court judge Miles Lord ruled that the drinking water and Lake Superior must be protected from the asbestos-like ...

https://en.wikipedia.org/wiki/Taconite

This is of the amosite variety and can be used for the production of asbestos, cement bricks, laboratory asbestos sheet and ... The minerals that are found in the district are the following: Asbestos - ...

https://en.wikipedia.org/wiki/Chamoli_district

... and plants containing them Arsenic and inorganic arsenic compounds Asbestos (all forms, including actinolite, amosite, ...

https://en.wikipedia.org/wiki/IARC_group_1

Thus, he argues that asbestos, passive smoking and BSE have not been shown to be dangerous. His articles on global warming have ... amosite and crocidolite respectively. For lung cancer the conclusions are less clear cut. ... The risk differential between ... He also disputed the link between passive smoking and cancer, and the dangers posed by asbestos. In his Sunday Telegraph ... Booker said that white asbestos is "chemically identical to talcum powder" and poses a "non-existent" risk to human health, ...

https://en.wikipedia.org/wiki/Christopher_Booker

Asbestos (fibrous serpentine- or amphibole minerals) Auerlite (variety of thorite) Avalite (chromian variety of illite) ... Amosite (asbestiform grunerite) Antozonite (variety of fluorite) Anyolite (metamorphic rock - zoisite, ruby, and hornblende) ...

https://en.wikipedia.org/wiki/List_of_minerals

2,4,5-T and its salts and esters Alachlor Aldicarb Aldrin Asbestos - Actinolite, Anthophyllite, Amosite, Crocidolite, and ... "Canada won't oppose asbestos limits". CBC News. CBC/Radio-Canada. 14 September 2012. Retrieved 14 September 2012. Official site ... "MEPs favour EU-Canada trade deal, but worry about seals, tar sand oil and asbestos". Europa (web portal). Archived from the ... International Ban Asbestos Secretariat issues statement critical of Canadian decision "Indian Center for Science and ...

https://en.wikipedia.org/wiki/Rotterdam_Convention

Residents eventually had the waste tested themselves at an independent laboratory where it was confirmed to be Amosite ("brown ... I enclose a site map where the asbestos has been located: Top section of road near hair pin bend, asbestos sheets and asbestos ... Spodden Valley, Rochdale's asbestos scandal - 1982 TV documentary (part 1) Spodden Valley, Rochdale's asbestos scandal - 1982 ... The planning application summary claimed: "of particular note is the absence of any asbestos contamination". However, asbestos ...

https://en.wikipedia.org/wiki/Spodden_Valley_asbestos_controversy

... asbestos MeSH D01.578.725.050.050 - asbestos, amphibole MeSH D01.578.725.050.050.050 - asbestos, amosite MeSH D01.578.725.050. ... asbestos MeSH D01.837.725.700.760.070.050 - asbestos, amphibole MeSH D01.837.725.700.760.070.050.060 - asbestos, amosite MeSH ... asbestos, amosite MeSH D01.524.500.050 - asbestos, serpentine MeSH D01.524.500.850 - talc MeSH D01.552.020.042 - actinium MeSH ... asbestos, amosite MeSH D01.837.725.700.760.535.400 - asbestos, serpentine MeSH D01.837.725.700.760.535.800 - talc MeSH D01.857. ...

https://en.wikipedia.org/wiki/List_of_MeSH_codes_(D01)

Glover J (April 1973). "Hygiene standards for airborne amosite asbestos dust. British Occupational Hygiene Society Committee on ... work with asbestos products, live with asbestos workers, or work in buildings containing asbestos. Asbestos exposure and the ... In the United States, asbestos manufacture stopped in 2002. Asbestos exposure thus shifted from workers in asbestos textile ... He may have been exposed to asbestos while serving with the U.S. Marines as a young adult-asbestos was then commonly used to ...

https://en.wikipedia.org/wiki/Mesothelioma

Testing Status of Asbestos, amosite 10761-X. Testing Status of Asbestos, amosite 10761-X. CASRN: 12172-73-5. Synonyms/Common ... Toxicology and Carcinogenesis Studies of Amosite Asbestos (CASRN 12172-73-5) in F344/N Rats (Feed Studies) ... Lifetime Carcinogenesis Studies of Amosite Asbestos (CASRN 12172-73-5) in Syrian Golden Hamsters (Feed Studies) ...

https://ntp.niehs.nih.gov/go/ts-10761-x

Asbestos includes chrysotile, cummingtonite-grunerite asbestos (amosite), anthophyllite asbestos, tremolite asbestos, ... Anthophyllite asbestos................. (Mg,Fe)(7)Si(8)O(22)(OH)(2) Asbestos Fiber: A fiber of asbestos meeting the criteria ... anthophyllite asbestos, tremolite asbestos and actinolite asbestos. These are the only amphibole minerals that have been ... For samples where asbestos was identified, but is less than 1.0%, report "Asbestos present, less than 1.0%." There must have ...

https://www.osha.gov/laws-regs/regulations/standardnumber/1926/1926.1101AppK

TR-279 Toxicology and Carcinogenesis Studies of Amosite Asbestos (CASRN 12172-73-5) in F344/N Rats (Feed Studies). *[Abstract] ... TR-249 Lifetime Carcinogenesis Studies of Amosite Asbestos (CASRN 12172-73-5) in Syrian Golden Hamsters (Feed Studies). *[ ... Asbestos, amosite (12172-73-5). Chemical Effects in Biological Systems (CEBS). Research Triangle Park, NC (USA): National ... Evaluation of the Chronic Toxicity and Carcinogenicity of Asbestos, Amosite (12172-73-5) in Male F344 Rats Exposed via Dosed ...

https://cebs.niehs.nih.gov/cebs/test_article/12172-73-5

Lifetime Carcinogenesis Studies of Amosite Asbestos (CASRN 12172-73-5) in Syrian Golden Hamsters (Feed Studies)Chemical (Study ... Asbestos, amosite: Target Organs and Levels of Evidence for TR-249. Lifetime Carcinogenesis Studies of Amosite Asbestos (. ... Asbestos, amosite. 12172-73-5. 06/23/1981. Dosed-Feed. 0,1 %/250 PER GROUP. IIT Research Institute. ...

https://drupal-prod.ntp.niehs.nih.gov/data/tr/200s/tr249levels/

Amosite. 7402. ASBESTOS by TEM. Amphibole asbestos. 7400. ASBESTOS and OTHER FIBERS by PCM. ... ASBESTOS and OTHER FIBERS by PCM. Methylenedioxyethylamphetamine. 9106. METHAMPHETAMINE and Illicit Drugs, Precursors and ... Amosite. 7400. ASBESTOS and OTHER FIBERS by PCM. ... Asbestos. 7400. ASBESTOS and OTHER FIBERS by PCM. Asbestos. ...

https://www.cdc.gov/niosh/nmam/chemicals.html

... that occurred among a panel of seven experts surrounding the science of how fiber length relates to toxicity of asbestos and ... exposures and length classified amosite and chrysotile asbestos fibers. The short-fiber amosite (1.7% ,5 µm in length) produced ... Asbestos (all). Amosite L=0.99µm;D=0.06µm. L=1.23µm;D=0.17µm. Pleural fibrosis. ... Data from the asbestos literature. Clinical analysis of human pleural tissue. Asbestos. L,2µm;D,0.03µm. Pleural plaques. ...

https://www.atsdr.cdc.gov/hac/asbestospanel/appendix_b.html

Amosite Asbestos (12172-73-5) *Chrysotile Asbestos (12001-29-5) *Tremolite Asbestos (14567-73-8) ...

https://www.nlm.nih.gov/pubs/techbull/mj06/mj06_technote.html

airborne chrysotile asbestos. [Repealed, SOR/2017-132, s. 1]. asbestos. asbestos. means actinolite, amosite, anthophyllite, ... airborne asbestos fibres. airborne asbestos fibres. means asbestos fibres that are longer than 5 μm (micrometres) with an ... asbestos-containing material. asbestos-containing material. means. *. (a) any article that is manufactured and contains 1% or ... means an activity that involves the handling of asbestos-containing material or is carried out in proximity to friable asbestos ...

https://laws.justice.gc.ca/eng/regulations/SOR-86-304/section-10.1-20170620.html

Amosite Asbestos (12172-73-5) *Chrysotile Asbestos (12001-29-5) *Tremolite Asbestos (14567-73-8) ...

https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v%3afile=viv_nU0QS1&server=pvlb7srch13&v%3astate=root%7croot-60-10%7c0&url=https%3a%2f%2fwww.nlm.nih.gov%2fpubs%2ftechbull%2fmj06%2fmj06_technote.html&rid=Ndoc62&v%3aframe=redirect&v%3aredirect-hash=7bbd152aba570db7191071efb8bf8272&

The bulk insulation samples contained 60 to 85 percent amosite asbestos, greater than 1 percent chrysotile asbestos, and 3 to 5 ... He recommends that the asbestos insulation be removed due to its deterioration and friable nature. Removal of the asbestos ... The coating over the asbestos insulation was in poor condition and accessible to contact damage. The author concludes that a ... Air samples contained up to 0.04 asbestos fibers per cubic centimeter, 8 hour time weighted average, well below the OSHA ...

http://www2.cdc.gov/nioshtic-2/BuildQyr.asp?s1=asbestos%2A&f1=TI&Startyear=&t1=1&s2=asbestos%2A&B1=Search&terms=3&Adv=1&f2=KW&Limit=500&Sort=DP%2BDESC&D1=75&EndYear=&PageNo=11&RecNo=759&View=f&

MeSH Terms: Air Pollutants, Occupational/toxicity*; Animals; Asbestos, Amosite/toxicity; Asbestos, Amphibole/toxicity*; Dose- ... Title: Comparative long-term toxicity of Libby amphibole and amosite asbestos in rats after single or multiple intratracheal ... little is known regarding the relative toxicity of LA compared to regulated asbestos, or regarding the risks associated with ... exposures of LA or a well-characterized amosite (AM) control fiber with equivalent fiber characteristics. Male F344 rats were ...

https://tools.niehs.nih.gov/portfolio/index.cfm?do=portfolio.publicationDetail&id=3107962

Asbestos is derived from the Greek word meaning inextinguishable. ... Asbestos is the generic term used for the group of fibrous ... The amphibole group includes crocidolite, amosite, and tremolite, which is often found as a contaminant of chrysotile ore. ... with asbestosis being a form of pneumoconiosis that is specifically caused by inhalation of asbestos fibers. Asbestos is the ... Asbestos-related lung disease: a pictorial review. Curr Probl Diagn Radiol. 2015 Jul-Aug. 44 (4):371-82. [QxMD MEDLINE Link]. ...

https://www.medscape.com/answers/352900-176315/what-are-the-preferred-modalities-for-asbestosis-imaging

Hydroxyl radicals were observed in PbCrO4 and amosite asbestos. However, radicals were not seen in TiO2 NW. These findings ... amosite asbestos fibers (0.2 mg/ml or 0.1 mg/ml), and lead chromate particles (PbCrO4) as a positive control (0.5 mg/ml). For ... Absorption-rates; Asbestos-fibers; Biological-effects; Biological-factors; Chemical-hypersensitivity; Chemical-reactions; Cell- ...

http://www2a.cdc.gov/nioshtic-2/BuildQyr.asp?s1=+%27ultrafine%2A%27+OR+%28%27nano%2A%27+AND+%27particle%2A%27%29+OR+%27nanotech%2A%27+OR+%27nanomaterial%2A%27+OR+%27nanoparticle%2A%27+OR+%27nanotube%2A%27+&f1=%2A&Startyear=&terms=3&Adv=1&ct=&B1=Search&Limit=25000&Sort=DP+DESC&whichdate=DP&D1=10&EndYear=&PageNo=164&RecNo=1635&View=f&

Asbestos includes the minerals, and substances including the minerals, amosite, crocidolite, chrysotile, fibrous actinolite, ... a) the quantity of the asbestos or ACM involved;. (b) the precautionary measures to be taken to prevent release of asbestos ... Use, in relation to asbestos or ACM, means. (a) affixing, applying spraying or installing asbestos or ACM on or in any premises ... As work with asbestos in industrial undertakings is banned by the Factories and Industrial Undertakings (Asbestos) Regulation, ...

https://www.epd.gov.hk/epd/english/environmentinhk/air/guide_ref/Banning_asbestos.html

Comparative long-term toxicity of Libby amphibole and amosite asbestos in rats after single or multiple intratracheal exposures ... Long-term response of rats to single intratracheal exposure of Libby amphibole or amosite. J Toxicol Environ Health A 75(3):183 ... Current research and opportunities to address environmental asbestos exposures. Environ Health Perspect 123(8):A194-A197. doi: ...

https://www.niehs.nih.gov/research/supported/centers/srp/products/staffpublications/index.cfm

https://emedicine.medscape.com/article/352900-overview

... amosite, chrysotile, crocidolite, and the fibrous varieties of tremolite, actinolite, and anthophyllite) that occur naturally ... All forms of asbestos are hazardous, and all can cause cancer, but amphibole forms of asbestos are considered to be somewhat ... Asbestos is the name given to a group of six different fibrous minerals ( ... What is asbestos?. Asbestos is the name given to a group of six different fibrous minerals (amosite, chrysotile, crocidolite, ...

https://wwwn.cdc.gov/TSP/PHS/PHS.aspx?phsid=28&toxid=4

8. Studies on the inhalation toxicology of two fiberglasses and amosite asbestos in the Syrian golden hamster. Part II. Results ... Asbestos in commercial cosmetic talcum powder as a cause of mesothelioma in women.. Gordon RE; Fitzgerald S; Millette J. Int J ... Talc and amosite/crocidolite preferentially deposited in the lungs of nonoccupational female lung cancer cases in urban areas ... A meta-analysis of asbestos-related cancer risk that addresses fiber size and mineral type.. Berman DW; Crump KS. Crit Rev ...

https://pubmedhh.nlm.nih.gov/biomarkers/search.php?id=32816595&mod=related&page=1&from=&outid=&proj=

Asbestos (1974-1993). Public MeSH Note. 94; AMOSITE was indexed under ASBESTOS 1974-93. Online Note. use ASBESTOS, AMOSITE (NM ... Asbestos [D01.578.725.050] * Asbestos, Amphibole [D01.578.725.050.050] * Asbestos, Amosite [D01.578.725.050.050.050] ... Asbestos [D01.837.725.700.760.070] * Asbestos, Amphibole [D01.837.725.700.760.070.050] * Asbestos, Amosite [D01.837.725.700. ... Amosite Amosite Asbestos Cummingtonite-Grunerite Registry Number. 12172-73-5. CAS Type 1 Name. Asbestos, grunerite. Previous ...

https://meshb.nlm.nih.gov/record/ui?ui=D017639

Asbestos: includes chrysotile, amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, actinolite asbestos, and any ... Updated Asbestos Surveys An updated asbestos survey, identifying both friable and nonfriable asbestos containing materials, ... Health effects related to asbestos exposure are due to the inhalation or ingestion of asbestos fibers. Asbestos is a known ... Vinyl Asbestos Floor Tile (VAT): vinyl floor tile and in some cases its mastic which contain more than one percent asbestos and ...

https://www.ehs.ufl.edu/departments/occupational-safety-risk/industrial-hygiene-occupational-safety/asbestos/operations-and-maintenance/

Brown asbestos and blue asbestos were also used commercially. Ceiling tiles and thermal insulation often contain amosite. ... Every kind of asbestos is known to cause cancer in humans.. What Was Asbestos Used For?. There are many asbestos uses. ... Tremolite asbestos. There are two types of asbestos fibers. Serpentine forms of asbestos have curly fibers. Amphibole forms of ... While asbestos is the most common form of asbestos in the United States. It accounts for close to 95 percent of the asbestos ...

https://www.myinjuryattorney.com/national-claims/mesothelioma-lawyer/

... ensuring your property is safe and asbestos-free. Trust us for reliable service. ... HM Group offers comprehensive asbestos testing in Clayfield, ... Amosite (brown asbestos): Amosite, or brown asbestos, is found ... Comprehensive Asbestos Solutions We offer a 100% guarantee on our asbestos removal services, ensuring a safe and asbestos-free ... Chrysotile (white asbestos): Chrysotile, or white asbestos, is commonly used in building materials bearing in mind roofing. It ...

https://hmgroup.net.au/p/asbestos-testing-clayfield/

Two separate bans of asbestos occurred in the United Kingdom. First, in 1985, both amosite and crocidolite forms of asbestos ... Which type of asbestos is mined in Canada?. Chrysotile, also known as white asbestos, is the primary form of asbestos mined in ... Does asbestos stay in the air?. Asbestos fibers can be released into the air when materials that contain asbestos are damaged, ... Is asbestos illegal in the U.S.?. Asbestos is not illegal in the United States. Specific products with asbestos have been ...

https://www.sokolovelaw.com/mesothelioma/frequently-asked-questions/

Certified Commercial Asbestos and Insulation Removals and Abatement service in Vaughan. Licensed, Certified, Insured, Reliable ... Most commonly used types of asbestos are Chrysotile (white) and Amosite (brown / off-white). Asbestos is considered a form of ... Where is Asbestos Found?. Usually asbestos is found in building materials that were installed before 1981. Asbestos is most ... ECO Metal Recycling is certified to provide Type 1 Asbestos Removal, Type 2 Asbestos Removal and Type 3 Asbestos Removal ...

https://ecometalrecycling.ca/commercial/asbestos-and-insulation-removal/vaughan.aspx

Figure 16. Photomicrograph of P388D1 macrophage-like cells 24 hours after amosite asbestos treatment used to study fiber- ... Asbestos fibers were cytotoxic to the P388D1 macrophages in tissue cultures. A microscope system was used to take photographs ... Lewis Lipkin was working on the cellular effects of asbestos fibers on the induction of pleural sarcoma [10]. Lew developed a ... Marta Wade, the technician who ran the cell-lines, shot time-lapse photographs of the cells with various types of asbestos ...

https://history.nih.gov/x/VoWH

As noted, however, chrysotile asbestos is harmless. The dangerous forms of asbestos, "blue" (crocidolite) and "brown" (amosite ... The principle in asbestos litigation now is that anyone exposed to any kind of asbestos who thinks they might eventually become ... Most of the asbestos mined and used in North American, on the other hand, is entirely harmless. The hysteria over asbestos in ... The hysteria over asbestos, however, is a continuing evil. The most common variety of asbestos used in the United States, 95% ...

https://www.friesian.com/ross/CA40/

Asbestos, Amosite - Preferred Concept UI. M0026708. Scope note. Asbestos, grunerite. A monoclinic amphibole form of asbestos ... Amosite. Amosite Asbestos. Cummingtonite Grunerite. Cummingtonite-Grunerite. Tree number(s):. D01.524.500.040. D01.578.725.050. ... Asbestos, grunerite. A monoclinic amphibole form of asbestos having long fibers and a high iron content. It is used in ... asbestos amositas grunerita Scope note:. Grunerita. Forma anfibólica monoclínica de asbesto constituida por fibras largas con ...

https://decs.bvsalud.org/en/ths/resource/?id=31636

Amosite. * Anthophyllite. Serpentine is curly and is mainly of one category called Chrysotile also known as white asbestos. ... Several products contain asbestos. These products are mainly used in the construction industry. Asbestos is used to make heat ... Although asbestos is noncancerous, it causes deadly respiratory diseases as asbestos fibers cause scarring in the lungs. This ... Mesothelioma causes tumor that spreads in the lungs with majority of cases attributed to asbestos. Many asbestos-related ...

https://comparisonsmaster.com/articles/the-danger-of-asbestos-exposure

Read more and contact us for asbestos solutions! ... Searching for info on asbestos? Check out this complete guide ... What Is Asbestos?. Asbestos is a silicate mineral that naturally occurs in the form of microscopic, thin fibers. There are six ... The Dangers of Asbestos Diseases. Asbestos is not significantly dangerous when it is undisturbed. When the mineral becomes ... Lung cancer is the most common death-related side effect of asbestos exposure. If asbestos fibers remain in the lungs long ...

https://www.urinow.com/blog/complete-guide-to-asbestos/

https://meshb-prev.nlm.nih.gov/record/ui?ui=D017639

Of the six types of asbestos, chrysotile was used most often. (mesothelioma.com)
There are six main types of asbestos . (mesothelioma.com)
Most types of asbestos fiber are sharp and needle-like. (mesothelioma.com)
The most commonly encountered types of asbestos containing materials at UF include floor tile and mastic, pipe insulation, fireproofing, window glazing, asbestos cement products and roofing. (ufl.edu)
There are two types of asbestos fibers. (myinjuryattorney.com)
Although it is more prevalent, some studies show it takes more exposure to chrysotile than other types of asbestos to develop related diseases. (moldbgonega.com)
We are certified to remove all types of asbestos from your building, business office or commercial area. (ecometalrecycling.ca)
Most commonly used types of asbestos are Chrysotile (white) and Amosite (brown / off-white). (ecometalrecycling.ca)
There are two general types of asbestos, amphibole and serpentine. (lcarp.org)

This is the most commonly used type of asbestos and is also known as white asbestos. (mesothelioma.com)
White asbestos was most commonly used in domestic appliances and buildings. (rooftopgroup.org)
Chrysotile, or white asbestos, is commonly used in building materials subsequently roofing. (hmgroup.net.au)
Serpentine is curly and is mainly of one category called Chrysotile also known as 'white asbestos. (comparisonsmaster.com)

Asbestos includes chrysotile, cummingtonite-grunerite asbestos (amosite), anthophyllite asbestos, tremolite asbestos, crocidolite, actinolite asbestos and any of these minerals which have been chemically treated or altered. (osha.gov)
Products that may have contained tremolite asbestos include paint, sealants and plumbing materials. (mesothelioma.com)

This type is also known as brown asbestos. (mesothelioma.com)
Brown asbestos was used in thermal insulation up to the late 1960s and in various sprayed applications and insulating boards until the late 1970s. (rooftopgroup.org)
Blue and brown asbestos are usually the most dangerous types. (rooftopgroup.org)
Brown asbestos and blue asbestos were also used commercially. (myinjuryattorney.com)
This is known as brown asbestos, and it originates mostly in Africa. (moldbgonega.com)

Chrysotile asbestos is the only serpentine type. (mesothelioma.com)
A wide variety of asbestos insulation and fireproofing products once used chrysotile asbestos. (mesothelioma.com)
The bulk insulation samples contained 60 to 85 percent amosite asbestos , greater than 1 percent chrysotile asbestos , and 3 to 5 percent glass wool. (cdc.gov)
Amphibole asbestos fibers are generally brittle and often have a rod- or needle-like shape, whereas chrysotile asbestos fibers are flexible and curved. (cdc.gov)
Chrysotile asbestos is used in 95 percent of commercial applications in the United States and is commonly linked to mesothelioma , asbestosis and other asbestos-related diseases. (joyelawfirm.com)
Chrysotile asbestos also was used in automobile brake linings, pipe insulation, gaskets and boiler seals. (moldbgonega.com)
This is not used commercially, but it can be found as a contaminant in chrysotile asbestos, vermiculite and talc powders. (moldbgonega.com)

This type is also known as blue asbestos. (mesothelioma.com)
Blue asbestos which has not been used in this country since about 1972, was used for insulation lagging and sprayed coating. (rooftopgroup.org)
This is blue asbestos and it's known for having the best heat resistance. (moldbgonega.com)
Crocidolite, or blue asbestos, is hazardous and used in insulation materials . (hmgroup.net.au)

Recent events have highlighted a need to further explore the potential for health effects from exposure to biopersistent fibers, specifically asbestos and some SVFs. (cdc.gov)
Learn more about asbestos exposure and mesothelioma. (mesothelioma.com)
Individuals with past or ongoing exposure to asbestos face health risks like mesothelioma. (mesothelioma.com)
But mounting evidence showed that exposure to asbestos came with serious health risks. (mesothelioma.com)
Still, there are ongoing asbestos exposure risks from older uses of the mineral. (mesothelioma.com)
The author concludes that a potential health hazard from asbestos exposure does exist at this facility. (cdc.gov)
2. Differential Susceptibility of Human Pleural and Peritoneal Mesothelial Cells to Asbestos Exposure. (nih.gov)
7. Five years update on relationships between malignant pleural mesothelioma and exposure to asbestos and other elongated mineral particles. (nih.gov)
The classic radiographic appearance of asbestosis is nonspecific, but the presence of ancillary findings, such as pleural plaques or diffuse pleural thickening, strongly suggests asbestos exposure as the cause. (medscape.com)
Individual HRCT scan findings are nonspecific, but the likelihood that the fibrosis is the result of asbestos exposure increases with the number of characteristic abnormalities observed and the presence of asbestos-related abnormalities, such as pleural disease. (medscape.com)
This public health statement tells you about asbestos and the effects of exposure. (cdc.gov)
Since then, hundreds of thousands of people have died from the use of, or exposure to, asbestos and asbestos products. (joyelawfirm.com)
There is no 'safe level' of exposure to asbestos, so if you think a material might contain asbestos, don't work on it - get expert advice. (rooftopgroup.org)
The primary objective of this plan is to protect building occupants and workers by minimizing the potential for exposure to asbestos fibers. (ufl.edu)
Health effects related to asbestos exposure are due to the inhalation or ingestion of asbestos fibers. (ufl.edu)
The debilitating respiratory disease, asbestosis, may also result from asbestos exposure. (ufl.edu)
Asbestos in good condition that remains undisturbed does not represent an exposure hazard. (ufl.edu)
Decades after asbestos exposure, deadly diseases like mesothelioma lung cancer and asbestosis can strike. (myinjuryattorney.com)
In this case, the asbestos exposure affects family members of these workers, as well. (myinjuryattorney.com)
Asbestos exposure accounts for about 80 percent of cases of mesothelioma. (myinjuryattorney.com)
Steve McQueen died of cancer related to exposure to asbestos: malignant pleural mesothelioma. (moldbgonega.com)
Asbestos is a silent killer because one does not get sick immediately from exposure, but usually within 20 years. (moldbgonega.com)
If multiple members of a certain family develop mesothelioma, it is likely that this is due to secondhand exposure to asbestos. (sokolovelaw.com)
Secondary exposure can occur when a family member unknowingly brings home microscopic asbestos fibers that are attached to their clothes, body, or hair, after working around asbestos. (sokolovelaw.com)
Caused by asbestos exposure, mesothelioma occurs when asbestos fibers cross the lung surface and enter the pleural cavity. (sokolovelaw.com)
Mesothelioma is a terminal form of cancer that is caused by exposure to asbestos. (sokolovelaw.com)
Most commonly mesothelioma is caused by repeated and prolonged exposure to asbestos, and such extended exposure typically occurs at one's workplace, where asbestos is being mined or used in manufacturing on a consistent basis. (sokolovelaw.com)
A person can also be exposed to asbestos during the asbestos abatement process or through secondhand exposure. (sokolovelaw.com)
In the Cappadocia region of Turkey, prolonged exposure to airborne erionite has been linked to unusually high numbers of fatalities from malignant mesothelioma, a rare lung cancer also associated with asbestos 8,9 . (americangeosciences.org)
There are high chances of exposure when cutting, drilling, and sanding asbestos. (comparisonsmaster.com)
The longer the period of exposure to asbestos, the higher the chances of getting related health complications. (comparisonsmaster.com)
The 1958 Wrongs Act allows individuals seek full compensation if they experience loss of income due to illness caused by exposure to asbestos at their workplace. (comparisonsmaster.com)
Lung cancer is the most common death-related side effect of asbestos exposure. (urinow.com)
Mesothelioma occurs when a malignant, cancerous tumor appears in the lining of the lungs, chest, abdomen or heart due to asbestos exposure. (urinow.com)
All three of these illnesses generally appear in people who have prolonged exposure to asbestos, especially workers in mining, milling or manufacturing the mineral. (urinow.com)
Exposure to asbestos-contaminated vermiculite occurs mostly during occupational exposure or exposure to contaminated clothing among worker's families. (lcarp.org)
However, exposure can occur only when materials containing asbestos are disturbed in some way to release fibers into the air. (lcarp.org)
When asbestos-containing materials are solidly embedded or contained, exposure risk will be minimal. (lcarp.org)
We must fully characterize EMP exposure to understand the full spectrum of health implications," said Weis, on potential tests for whether asbestos occurs in cosmetics and personal care products. (nih.gov)
What are the permissible exposure limits for asbestos? (asbestostestinglab.com)

Pneumoconiosis is a lung disease that is caused by the inhalation and deposition of mineral dust, with asbestosis being a form of pneumoconiosis that is specifically caused by inhalation of asbestos fibers. (medscape.com)
This article focuses on asbestosis, which specifically refers to the bilateral, diffuse, interstitial fibrosis of the lungs caused by the inhalation of asbestos fibers. (medscape.com)
Asbestos fibres can cause a cancer called mesothelioma, which is always fatal, and a crippling lung disease called asbestosis. (rooftopgroup.org)
Breathing in stray asbestos fibers after they have been disturbed can lead to several fatal diseases, including asbestos-caused lung cancer, mesothelioma, and asbestosis. (sokolovelaw.com)
Asbestos can also cause lung cancer, and a deadly disease known as asbestosis. (sokolovelaw.com)
Not only this, asbestos can cause a persistent lung disease called asbestosis. (dreamlandsdesign.com)

Products that may have contained amosite asbestos include insulation, gaskets and tiles. (mesothelioma.com)
Anthophyllite asbestos was not used often in consumer products but may have been in some cement and insulation materials. (mesothelioma.com)
Some asbestos products or materials, like insulation, are more distinct than others. (mesothelioma.com)
Common asbestos products include cement , insulation , sealants and vinyl floor tiles . (mesothelioma.com)
The coating over the asbestos insulation was in poor condition and accessible to contact damage. (cdc.gov)
He recommends that the asbestos insulation be removed due to its deterioration and friable nature. (cdc.gov)
New loft or cavity wall insulation does not contain asbestos, however, if it was fitted pre-early 1980s it may contain asbestos. (rooftopgroup.org)
Asbestos had been widely used in friction, fireproofing, insulation and building materials before the mid-1980s because of its very high tensile strength and good heat and chemical resistance properties. (gov.hk)
Ceiling tiles and thermal insulation often contain amosite. (myinjuryattorney.com)
It can be found in insulating board (which contained up to 40 percent asbestos), ceiling tiles and in thermal insulation products. (moldbgonega.com)
It was occasionally found as a contaminant in certain asbestos-containing insulation products, paints, sealants and roofing materials. (moldbgonega.com)
Amosite, or beige asbestos, is found in construction materials behind insulation boards. (hmgroup.net.au)
Let us remove that commercial asbestos and insulation in Vaughan. (ecometalrecycling.ca)
Found in many products in the home, including tiles, roofing shingles, and insulation, among others, asbestos is dangerous when it is disturbed. (sokolovelaw.com)
Asbestos is used for insulation and is fire-retardant. (lcarp.org)
Asbestos can be found in a variety of building materials, such as insulation, ceiling or floor tiles, and cement pipes. (lcarp.org)
Amphibole asbestos has been found in some vermiculite sources used as home and building insulation. (lcarp.org)

Minerals important in asbestos analysis include cummingtonite-grunerite, crocidolite, tremolite-actinolite and anthophyllite. (osha.gov)

Each type belongs to either the serpentine or amphibole asbestos mineral family. (mesothelioma.com)
Amphibole asbestos is the classification for all other types. (mesothelioma.com)
The main difference between serpentine and amphibole asbestos is how each fiber appears. (mesothelioma.com)
Like the other forms of amphibole asbestos, it has needle-like fibers. (moldbgonega.com)
Amphibole asbestos is characterized by having a straight, jagged shape. (comparisonsmaster.com)

16. Pathological and environmental aspects of asbestos-associated diseases. (nih.gov)
In the early 1900s, researchers began to realize that an increasing number of Americans were dying from lung diseases in asbestos mining towns. (joyelawfirm.com)
Similarly, asbestos minerals are unlikely to pose a threat when undisturbed, but if they are exposed at the Earth's surface either by natural processes or human activity, they can become airborne and increase the risk of certain diseases. (americangeosciences.org)
Although asbestos is noncancerous, it causes deadly respiratory diseases as asbestos fibers cause scarring in the lungs. (comparisonsmaster.com)
Many asbestos-related diseases take up to 40 to 50 years before showing signs and symptoms. (comparisonsmaster.com)

Asbestos: A term for naturally occurring fibrous minerals. (osha.gov)
Minerals important in asbestos analysis included in this family are chrysotile, lizardite, antigorite. (osha.gov)
Asbestos is a group of six naturally occurring minerals made up of thin, microscopic fibers. (mesothelioma.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)
Asbestos minerals consist of thin, separable fibers that have a parallel arrangement. (cdc.gov)
However, because they are not fibrous, they are not classified as asbestos minerals. (cdc.gov)
Asbestos refers to a group of minerals that naturally occur in the environment and contain silicone and oxygen atoms in their molecular structure. (joyelawfirm.com)
According to the National Cancer Institute (NCI), asbestos minerals are generally divided into two specific groups - serpentine and amphibole. (joyelawfirm.com)
Asbestos is the name of a class of minerals that occur in fibrous form. (ufl.edu)
Asbestos is a set of silicate minerals or rock-forming minerals that contain silicon compounds. (myinjuryattorney.com)
Asbestos is a group of natural silicate minerals comprised of varying concentrations of tremolite, actinolite, anthophyllite, chrysotile, amosite and crocidolite. (ecometalrecycling.ca)
Asbestos is most commonly found in the fibres of older construction materials, and asbestos removal is required in any building displaying high levels of these minerals. (ecometalrecycling.ca)
Before 1999, asbestos which is a combined set of natural silicate minerals was widely used in construction materials and building homes. (dreamlandsdesign.com)
The term "Naturally Occurring Asbestos" (NOA), on the other hand, refers to the six federally-regulated asbestos minerals as well as other fibrous minerals found in rocks and soils that can negatively impact human health when inhaled. (americangeosciences.org)
Asbestos is a group of naturally occurring silicate minerals characterized by small, but relatively long and thin fibers. (lcarp.org)

In general, actinolite asbestos is dark in color. (mesothelioma.com)

However, the most common form of asbestos, chrysotile, may have some minor mineral loss in acidic environments. (cdc.gov)
A monoclinic amphibole form of asbestos having long fibers and a high iron content. (nih.gov)
While asbestos is the most common form of asbestos in the United States. (myinjuryattorney.com)
This is the most commonly used form of asbestos and can be found today in roofs, ceilings, walls and floors of homes and businesses. (moldbgonega.com)
This form of asbestos has a harsh texture and is not as flexible as the others. (moldbgonega.com)

Serpentine asbestos includes chrysotile, a mineral with long, curly fibers which can be woven. (joyelawfirm.com)
Serpentine forms of asbestos have curly fibers. (myinjuryattorney.com)

Flooring, ceiling and roofing tiles were commonly made with asbestos. (moldbgonega.com)
Because Asbestos floor tiles were so effective and durable, it appears virtually everywhere in Southern Ontario. (ecometalrecycling.ca)
Usually, asbestos floor tiles came in a 9'x9' piece tile, it also came in asbestos sheets or vinyl sheeting. (ecometalrecycling.ca)
Are asbestos tiles dangerous? (sokolovelaw.com)

Asbestos is a mineral that many industries used for decades in thousands of products. (mesothelioma.com)
All asbestos is fibrous, meaning individual microscopic fibers make up the mineral. (mesothelioma.com)
Fiber shape differs based on asbestos mineral type. (mesothelioma.com)
Asbestos is the generic term used for the group of fibrous mineral silicates of magnesium and iron whose chemical and physical properties make it ideal for a variety of commercial and industrial uses. (medscape.com)
Asbestos is a natural mineral found in rocks all over the world. (rooftopgroup.org)
Once it's been mined, asbestos rock mineral is crushed, which produces a material made of long and short fibres. (rooftopgroup.org)
Asbestos is a naturally occurring, fibrous mineral that was for many years used in an array of products due to the mineral's natural fire-resistance properties. (sokolovelaw.com)
Asbestos is a naturally occurring fibrous mineral mined from beneath the earth's surface. (sokolovelaw.com)
Asbestos is a fibrous, naturally occurring mineral, and, when disturbed, it can release microscopic fibers into the air. (sokolovelaw.com)
Asbestos is an organic, fibrous mineral that is found commonly in nature. (sokolovelaw.com)
Asbestos is a naturally-occurring mineral that's composed of flexible and soft compounds. (dreamlandsdesign.com)
Scanning electron microscope (SEM) image of "wooly" erionite, a naturally occurring asbestos mineral. (americangeosciences.org)
Erionite is a naturally occurring asbestos (NOA) mineral and Group 1 known respiratory carcinogen 5,6 that has been found on every continent and in at least twelve US states 7 . (americangeosciences.org)
Asbestos is a silicate mineral that naturally occurs in the form of microscopic, thin fibers. (urinow.com)
Asbestos and other elongate mineral particles, or EMPs (see sidebar ), can cause cancers and a variety of noncancer health effects, Weis explained. (nih.gov)

This includes asbestos cancers like mesothelioma and lung cancer . (mesothelioma.com)
19. Differential mutation profiles and similar intronic TP53 polymorphisms in asbestos-related lung cancer and pleural mesothelioma. (nih.gov)

Individual asbestos fibers are not visible to the naked eye. (mesothelioma.com)
Asbestos fibers are not able to move through soil. (cdc.gov)
If naturally occurring asbestos is not disturbed and fibers are not released into the air, then it is not a health risk. (lcarp.org)

Other products, like cement, may look the same as non-asbestos variations. (mesothelioma.com)
Asbestos-containing cement was used in building materials because the fibers provided strength without adding much weight. (moldbgonega.com)

The lung biopersistence of 5 synthetic vitreous fibers (SVFs) and amosite asbestos was evaluated using the rat inhalation model. (nih.gov)

Ca(2)(Mg,Fe)(5)Si(8)O(22)(OH)(2) Anthophyllite asbestos. (osha.gov)

Different products may have contained different forms of asbestos. (mesothelioma.com)
All forms of asbestos are hazardous, and all can cause cancer, but amphibole forms of asbestos are considered to be somewhat more hazardous to health than chrysotile. (cdc.gov)
A mphibole forms of asbestos have needle-like fibers. (myinjuryattorney.com)
Different forms of asbestos serve different purposes. (myinjuryattorney.com)

Asbestos was also commonly used in boiler and boiler pipe insulating materials prior to 1980. (ecometalrecycling.ca)
Asbestos was commonly used in older buildings. (wastekingrubbishclearance.com)
To this day, asbestos is mined from the earth to be used most commonly in the manufacturing of products that require strong fireproofing. (sokolovelaw.com)

Asbestos belongs to a class of six naturally occurring metals made of thin, needle-like fibers. (comparisonsmaster.com)

However, pieces of fibers can enter the air and water from the weathering of natural deposits and the wearing down of manufactured asbestos products. (cdc.gov)

Asbestos must be properly removed by a qualified professional in order to avoid or minimize the release of asbestos fibers into the air. (ecometalrecycling.ca)
The water/detergent mist will reduce the release of asbestos fibers. (asbestostestinglab.com)

Buildings presumed to contain asbestos containing materials are posted with a notice sign ( Appendix B ) alerting occupants to the presence of asbestos and providing guidance on where to find further information. (ufl.edu)
Contractors arriving on campus to work are notified about the presence of asbestos containing materials through their contract documents. (ufl.edu)
Our team of experts conducts thorough laboratory analysis to detect the presence of asbestos in buildings and materials. (hmgroup.net.au)
Once the presence of asbestos has been confirmed on your site in Cullompton, Waste King's fully trained asbestos removal specialists can provide you with a comprehensive removal, treatment and disposal service. (wastekingrubbishclearance.com)

10. Gene-asbestos interaction in malignant pleural mesothelioma susceptibility. (nih.gov)
[ 14 ] and another study found hat MRI compared favorably to CT scanning in the detection of asbestos-related pleural disease. (medscape.com)

Since asbestos fibers may cause harmful health effects in people who are exposed, all new uses of asbestos have been banned in the United States by the EPA. (cdc.gov)
While most uses of asbestos have been banned, some asbestos containing products remain on the market today. (ufl.edu)

The amphibole group includes crocidolite, amosite, and tremolite, which is often found as a contaminant of chrysotile ore. (medscape.com)
Actinolite was never used commercially, but it can be found as a contaminant in some asbestos products. (moldbgonega.com)

Fisher rats were exposed for 5 days by nose-only inhalation to refractory ceramic fiber (RCF1a), rock (stone) wool (MMVF21), 2 relatively durable special application fiber glasses (MMVF32 or MMVF33), HT stonewool (MMVF34), amosite asbestos, or filtered air. (nih.gov)

11. Carcinogenicity of amosite asbestos. (nih.gov)

For example, many construction products and machinery parts contained asbestos before the 1980s. (mesothelioma.com)
The United States began increasing asbestos regulations in the 1980s. (mesothelioma.com)
Building materials containing asbestos were widely used from 1930 to the mid 1980s, but particularly from the 1960s onwards. (rooftopgroup.org)
The use of asbestos in these products dropped greatly in the 1980s. (rooftopgroup.org)
If it was built in the past the 1980s, there's a tall chance it might have asbestos materials. (hmgroup.net.au)
Prior to the 1980s, asbestos was the standard fire safety equipment used in home construction. (dreamlandsdesign.com)

Asbestos is a known carcinogen that can cause cancer in the lungs, larynx, trachea and other locations of the body. (ufl.edu)
You deserve better than being exposed to a known carcinogen by your workplace or losing a family member to a disease caused by asbestos. (myinjuryattorney.com)
Unfortunately, asbestos is also a cancer-causing carcinogen that comes with serious side effects for humans. (urinow.com)
Asbestos is a CARCINOGEN in humans. (asbestostestinglab.com)

Raw asbestos is a nondescript, soft and fluffy material made up of microscopic fibers. (mesothelioma.com)
Similar to regulated asbestos, the fibrous shape of microscopic erionite crystals allows them to become embedded in a person's lungs when inhaled. (americangeosciences.org)

What is Asbestos abatement? (moldbgonega.com)

Employees who will be removing or disturbing asbestos or presumed asbestos containing materials must receive training meeting the requirements of the EPA Model Accreditation Plan or complete specialized training as described below. (ufl.edu)

Because of these properties, asbestos has been mined for use in a wide range of manufactured products, mostly in building materials, friction products, and heat-resistant fabrics. (cdc.gov)
Asbestos has also been used in some heat-resistant household products such as oven gloves and ironing boards. (rooftopgroup.org)
Asbestos is used to make heat resistant products, as an acoustic insulator and a thermal insulator. (comparisonsmaster.com)
Because of its strength and heat resistant properties, asbestos has been used for several manufactured goods. (lcarp.org)

As it is difficult for the general public to tell with certainty whether a material contains asbestos or not by its appearance or colour, it is more appropriate to take a precautionary attitude and treat it as suspected ACM unless proved otherwise by a registered asbestos laboratory. (gov.hk)
All building materials in structures built prior to 1981 must be presumed to contain asbestos unless laboratory analysis or historical data indicate otherwise. (ufl.edu)
Have your suspect asbestos-containing material tested by our EPA approved, NVLAP accredited asbestos testing laboratory. (asbestostestinglab.com)

Air samples contained up to 0.04 asbestos fibers per cubic centimeter, 8 hour time weighted average, well below the OSHA standard of 2 fibers per cubic centimeter for an 8 hour time weighted average. (cdc.gov)
Removal of the asbestos should be carried out in accordance with OSHA and Environmental Protection Agency regulations. (cdc.gov)
Also refer to the complete OSHA asbestos standards, Florida DBPR requirements, U.S. EPA regulations, the University Asbestos Policy (Appendix E), and other relevant asbestos guidance documents. (ufl.edu)
In the United States, the Occupational Safety and Health Administration (OSHA) and Environmental Protection Agency (EPA) allow asbestos in a product if it comprises less than 1% percent of the total product. (urinow.com)

No one should have to deal with the threat of a contaminant like asbestos alone. (urinow.com)

However, if they are exposed and disturbed, very fine asbestos fibres which can stay airborne for a long time will be released. (gov.hk)
The combined use of detection methods called light microscopy, electron microscopy, and energy dispersive X-ray analysis offer the most accurate approach to identify asbestos and to estimate concentrations that may become airborne upon disturbance. (lcarp.org)
When asbestos products are damaged or disturbed, fibers become airborne and can cause significant health problems when they are inhaled. (lcarp.org)

EPA regulations require that all buildings, regardless of age, be surveyed for asbestos prior to demolition or renovation. (ufl.edu)
We strictly adhere to UK asbestos regulations and guidelines, ensuring all work is conducted safely and legally. (hmgroup.net.au)
Their team of experts ensures 100% safe and compliant asbestos removal services, meeting the highest standards set by Australian regulations. (hmgroup.net.au)
HM Group's asbestos psychiatry and demolition services offer a reliable answer for individuals and businesses in East Ipswich seeking to ascend with safety regulations. (hmgroup.net.au)
Trust HM Group for well-behaved asbestos inspections that meet Australian standards and regulations. (hmgroup.net.au)
The disposal of all the asbestos that Waste King handles is carried out in accordance with the Special Waste Regulations 1996. (wastekingrubbishclearance.com)

If you need help removing asbestos from a commercial property or domestic building in Cullompton, Waste King Asbestos can help. (wastekingrubbishclearance.com)

Their team of experts utilizes avant-garde techniques to cleverly detect the asbestos presence, providing peace of mind and safeguarding neighboring potential health risks allied with this hazardous material. (hmgroup.net.au)
Asbestos is considered a form of hazardous waste. (ecometalrecycling.ca)

What are the health risks of asbestos? (rooftopgroup.org)
Learn more about the health risks of asbestos here. (lcarp.org)

Asbestos is heat and chemical resistant, fireproof and strong. (mesothelioma.com)
Asbestos is resistant to heat and chemicals. (rooftopgroup.org)
Asbestos has unique properties in manufacturing since it is stronger than steel and extremely resistant to heat and chemicals. (urinow.com)

Because asbestos has been so widely used, there are low levels of asbestos fibres in the air everywhere. (rooftopgroup.org)
Everybody is potentially exposed to low levels of asbestos in the air, however, people who work in industries such as, mining, making asbestos products, automobile brake or clutch repair industry or the construction industry, especially demolition or renovation may have been exposed to higher levels of asbestos at the workplace. (lcarp.org)

What is Naturally Occurring Asbestos (NOA)? (americangeosciences.org)
Naturally occurring asbestos can be released from rocks or soils by routine human activities, such as construction, or natural weathering processes. (lcarp.org)

Mold B Gone now offers asbestos testing and removal services. (moldbgonega.com)
We offer a 100% guarantee on our asbestos removal services, ensuring a safe and asbestos-free environment for you. (hmgroup.net.au)
We provide prompt and reliable asbestos removal services, completing projects on time and within budget. (hmgroup.net.au)
ECO Metal Recycling is certified to provide Type 1 Asbestos Removal , Type 2 Asbestos Removal and Type 3 Asbestos Removal services in Vaughan. (ecometalrecycling.ca)
It's time for a thrilling adventure into the world of asbestos removal services! (thecleaningdirectory.com)

Anatomy3

Diseases9

Chemicals and Drugs17

Analytical, Diagnostic and Therapeutic Techniques and Equipment2

Phenomena and Processes1

Technology, Industry, Agriculture4

Health Care3

A risk assessment for exposure to grunerite asbestos (amosite) in an iron ore mine. (1/70)

In situ microscopic analysis of asbestos and synthetic vitreous fibers retained in hamster lungs following inhalation. (2/70)

Asbestos induction of extended lifespan in normal human mesothelial cells: interindividual susceptibility and SV40 T antigen. (3/70)

Biopersistence and durability of nine mineral fibre types in rat lungs over 12 months. (4/70)

Influence of fibre length, dissolution and biopersistence on the production of mesothelioma in the rat peritoneal cavity. (5/70)

Impact of acute and subchronic asbestos exposure on some parameters of antioxidant defense system and lung tissue injury. (6/70)

Chemical differences between long and short amosite asbestos: differences in oxidation state and coordination sites of iron, detected by infrared spectroscopy. (7/70)

TNF-alpha increases tracheal epithelial asbestos and fiberglass binding via a NF-kappaB-dependent mechanism. (8/70)

Asbestos, Amosite

Asbestos

Asbestos, Serpentine

Asbestos, Crocidolite

Asbestos, Amphibole

Mesothelioma

Mineral Fibers

Silicic Acid

Pleura

Asbestosis

Pleural Neoplasms

Pleural Diseases

Occupational Exposure

Talc

Occupational Diseases

Glass

Dust

Lung

Construction Materials

Body Burden

Pulmonary Fibrosis

Silicon Dioxide

Cocarcinogenesis

Lung Neoplasms

Mining

Microscopy, Electron, Scanning Transmission

Dimethylhydrazines

Minerals

1,2-Dimethylhydrazine

Particle Size

Trimethylsilyl Compounds

Granulation Tissue

Silicon

Environmental Exposure

Carcinogens, Environmental

Ships

Air Pollutants, Occupational

Lung Diseases

A risk assessment for exposure to grunerite asbestos (amosite) in an iron ore mine. (1/70)

In situ microscopic analysis of asbestos and synthetic vitreous fibers retained in hamster lungs following inhalation. (2/70)

Asbestos induction of extended lifespan in normal human mesothelial cells: interindividual susceptibility and SV40 T antigen. (3/70)

Biopersistence and durability of nine mineral fibre types in rat lungs over 12 months. (4/70)

Influence of fibre length, dissolution and biopersistence on the production of mesothelioma in the rat peritoneal cavity. (5/70)

Impact of acute and subchronic asbestos exposure on some parameters of antioxidant defense system and lung tissue injury. (6/70)

Chemical differences between long and short amosite asbestos: differences in oxidation state and coordination sites of iron, detected by infrared spectroscopy. (7/70)

TNF-alpha increases tracheal epithelial asbestos and fiberglass binding via a NF-kappaB-dependent mechanism. (8/70)

Asbestos

Nancy Tait

Health impact of asbestos

Institute of Occupational Medicine

Glass fiber

Asbestos insulating board

Asbestos and the law

Control of Asbestos Regulations 2006

Amphibole

Mr Fluffy

UN number

Cummingtonite

Occupational hazards of fire debris cleanup

Grunerite

Fiber

Taconite

Chamoli district

IARC group 1

Christopher Booker

List of minerals

Rotterdam Convention

Spodden Valley asbestos controversy

List of MeSH codes (D01)

Mesothelioma

Asbestos, amosite 10761-X

1926.1101 App K - Polarized Light Microscopy of Asbestos - Non-Mandatory | Occupational Safety and Health Administration

Asbestos, amosite (12172-73-5) | Chemical Effects in Biological Systems

Asbestos, amosite: Target Organs and Levels of Evidence for TR-249

NMAM 5th Edition - Methods by Chemical Name | NIOSH | CDC

ATSDR - Asbestos Expert Panel - Premeeting Comments

NLM Technical Bulletin. 2006 May-Jun

ARCHIVED - Canada Occupational Health and Safety Regulations

NLM Technical Bulletin. 2006 May-Jun

NIOSHTIC-2 Search Results - Full View