Microscopy, Electron, Scanning Transmission
Air Pollutants, Occupational
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
* 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.
Health impact of asbestos
Institute of Occupational Medicine
Asbestos insulating board
Asbestos and the law
Control of Asbestos Regulations 2006
Occupational hazards of fire debris cleanup
IARC group 1
List of minerals
Spodden Valley asbestos controversy
List of MeSH codes (D01)
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
Asbestosis Imaging: Practice Essentials, Radiography, Computed Tomography
NIOSHTIC-2 Search Results - Full View
Banning Asbestos | Environmental Protection Department
Staff Publications (Superfund Research Program)
Asbestosis Imaging: Practice Essentials, Radiography, Computed Tomography
Asbestos | Public Health Statement | ATSDR
Operations and Maintenance
Mesothelioma Claim Attorneys | Console & Associates P.C.
Asbestos Testing Clayfield - Asbestos Inspections & Audits
Frequently Asked Questions
Commercial Asbestos and Insulation Removal in Vaughan | ECO Metal Recycling Inc.
The National Cancer Institute Real Time Picture Processor - Office of NIH History and Stetten Museum
Kelley Ross for Congress, 2006, California, 28th District
The Danger Of Asbestos Exposure - Comparisonsmaster
The Complete Guide to Asbestos | Professional Restorations
Types of asbestos9
- 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)
Form of asbestos5
- 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)
- 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)
Fibers are not3
Synthetic vitreous fibers1
- 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)
Forms of asbestos4
- 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)
Wearing down of manufactu1
- 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)
Release of asbestos2
Presence of asbestos4
- 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)
Uses of asbestos have been banned2
Found as a contaminant2
- 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)
- What is Asbestos abatement? (moldbgonega.com)
Presumed asbestos containin1
- 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)
Levels of asbestos2
- 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)
- 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)