Mesothelioma and asbestosis from occupational origin in the general population of Quebec
Cases of Average Mesothelioma Settlementrecognized as occupational diseases by CSMPP from 1975 to 2003, following a complaint to the Commission on health and safety, represent 21.4% of all cases of mesothelioma of the pleura registered File Quebec tumors 1975-2002.
The Gazette officielle du Québec published 27 December 2012, a draft regulation that adds new safety standards regarding Average Mesothelioma Settlement 1) the management of asbestos in particular as to the location by the employer of flocking and heat-containing asbestos, 2) verification by the employer who is about to perform work likely to release dust, the presence of asbestos in materials and products likely to contain and 3) to recording and dissemination of information
Recommendations and follow in the wake of knowledge about asbestos 2003-2009 NEW
The Department of Health and Social Services asked the Commission on Health and Safety at Work Quebec to revise the current standard of exposure to asbestos downward Workplace (Health Regulations and work safety). Furthermore, no regulations currently in force should be reduced (including the Safety Code for the construction and the exposure to asbestos standards of Health and Safety Regulations of work) and protective measures enacted should be applied to protect workers, especially in the sectors of construction, renovation and transformation of asbestos.
The Department of Health and Human Services Commission promotes health and occupational safety of Quebec to pursue work on the adoption of a regulation requiring owners of public buildings to identify premises that contain materials containing asbestos, to set up a secure management program for asbestos and to keep it informed of the progress of this work state.
The Department of Health and Human Services:
asks the completion of an asbestos concentrations monitoring program in ambient air of mining towns in Quebec, under the responsibility of the inistry of Sustainable Development, Environment and Parks of Quebec;
request an evaluation of concentrations of asbestos background noise in urban and rural areas the Ministry of Sustainable Development, Environment and Parks of Quebec;ensures that the air samples are analyzed by transmission electron microscopy;asked the concerned authorities to establish exposure control measures in the mining towns of Quebec such as the banning of access to dumps, stopping use of tailings for backfill purposes and as an abrasive and recovery tailings backfill mining towns of Quebec by a non-contaminated material.
The National Institute of Public Health of Quebec suggests the Ministry of Health and Social Services to check with the authorities concerned, the state of preventive approach to the safe management of asbestos on the premises of following institutions and to report back: schools, daycare centers, CEGEPs and universities (under the responsibility of the Ministry of Education, Recreation and Sports); health facilities (the responsibility of health and social services agencies) and municipal public buildings (under the responsibility of municipalities and the Ministry of Municipal Affairs, Regions and Land Occupancy).
Cases of Average Mesothelioma Settlementrecognized as occupational diseases by CSMPP from 1975 to 2003, following a complaint to the Commission on health and safety, represent 21.4% of all cases of mesothelioma of the pleura registered File Quebec tumors 1975-2002.
The Gazette officielle du Québec published 27 December 2012, a draft regulation that adds new safety standards regarding Average Mesothelioma Settlement 1) the management of asbestos in particular as to the location by the employer of flocking and heat-containing asbestos, 2) verification by the employer who is about to perform work likely to release dust, the presence of asbestos in materials and products likely to contain and 3) to recording and dissemination of information
Recommendations and follow in the wake of knowledge about asbestos 2003-2009 NEW
The Department of Health and Social Services asked the Commission on Health and Safety at Work Quebec to revise the current standard of exposure to asbestos downward Workplace (Health Regulations and work safety). Furthermore, no regulations currently in force should be reduced (including the Safety Code for the construction and the exposure to asbestos standards of Health and Safety Regulations of work) and protective measures enacted should be applied to protect workers, especially in the sectors of construction, renovation and transformation of asbestos.
The Department of Health and Human Services Commission promotes health and occupational safety of Quebec to pursue work on the adoption of a regulation requiring owners of public buildings to identify premises that contain materials containing asbestos, to set up a secure management program for asbestos and to keep it informed of the progress of this work state.
The Department of Health and Human Services:
asks the completion of an asbestos concentrations monitoring program in ambient air of mining towns in Quebec, under the responsibility of the inistry of Sustainable Development, Environment and Parks of Quebec;
request an evaluation of concentrations of asbestos background noise in urban and rural areas the Ministry of Sustainable Development, Environment and Parks of Quebec;ensures that the air samples are analyzed by transmission electron microscopy;asked the concerned authorities to establish exposure control measures in the mining towns of Quebec such as the banning of access to dumps, stopping use of tailings for backfill purposes and as an abrasive and recovery tailings backfill mining towns of Quebec by a non-contaminated material.
The National Institute of Public Health of Quebec suggests the Ministry of Health and Social Services to check with the authorities concerned, the state of preventive approach to the safe management of asbestos on the premises of following institutions and to report back: schools, daycare centers, CEGEPs and universities (under the responsibility of the Ministry of Education, Recreation and Sports); health facilities (the responsibility of health and social services agencies) and municipal public buildings (under the responsibility of municipalities and the Ministry of Municipal Affairs, Regions and Land Occupancy).
Standard of exposure to asbestos in Quebec
The standard occupational exposure to asbestos in Quebec is the same since 1990. The value-weighted average exposure (TWA) and short-term exposure value (STEL) for chrysotile, tremolite, anthophyllite and actinolite are 1 fiber / ml respectively (f / ml) and 5 f / ml. The TWA and STEL for crocidolite and amosite are respectively 0.2 f / ml and 1 f / ml.
The standard of 1 f / ml is ten times higher than the standard that prevails in Ontario, the US and France, where it is 0.1 f / ml.
The standard of 1 f / ml is 100 times higher than the norm of the Netherlands and Switzerland.
In France, the decree number 2012-639, effective in July 2012, stipulates that the current standard for occupational exposure to asbestos of 0.1 f / ml decrease to 0.01 f / ml from July 2015 (Source: www.travailler-mieux.gouv.fr/IMG/pdf/Decret_amiante_4_mai_2012.pdf, accessed 25 February 2013).
There is no standard of environmental exposure to asbestos.
The standard occupational exposure to asbestos in Quebec is the same since 1990. The value-weighted average exposure (TWA) and short-term exposure value (STEL) for chrysotile, tremolite, anthophyllite and actinolite are 1 fiber / ml respectively (f / ml) and 5 f / ml. The TWA and STEL for crocidolite and amosite are respectively 0.2 f / ml and 1 f / ml.
The standard of 1 f / ml is ten times higher than the standard that prevails in Ontario, the US and France, where it is 0.1 f / ml.
The standard of 1 f / ml is 100 times higher than the norm of the Netherlands and Switzerland.
In France, the decree number 2012-639, effective in July 2012, stipulates that the current standard for occupational exposure to asbestos of 0.1 f / ml decrease to 0.01 f / ml from July 2015 (Source: www.travailler-mieux.gouv.fr/IMG/pdf/Decret_amiante_4_mai_2012.pdf, accessed 25 February 2013).
There is no standard of environmental exposure to asbestos.
Asbestos exposure in the general population of Quebec
In 2004, in Montreal and Quebec City, the total fiber concentrations measured in outdoor air by the Ministry of Sustainable Development, Environment and Parks (MDDEP) and from 117 samples analyzed by optical microscope phase contrast (PCM) extended from <0.0015 to 0.0054 fiber / ml (f / ml) whereas the analyzes in transmission electron microscopy (TEM) of five samples were not identified fiber of asbestos. In the town of Asbestos, average annual fiber concentrations in ambient air reported between 1998 and 2005 by the Jeffrey mine ranged from 0.003 to 0.007 f / ml depending on the sampling site (unspecified method of analysis). In the city of Thetford Mines, in 2004 the total fiber concentrations measured in outdoor air by the MDDEP from 125 samples analyzed by PCOM ranged from <0.056 and 0.0015 f / ml. The concentrations of asbestos fibers measured from seven samples analyzed by TEM ranged from <0.0006 f / ml to 0.0082 f / ml with an average of 0.0043 f / ml. The average concentration of asbestos fibers in the measured outside air Thetford Mines in 2004 by MSDEP (0.0043 f / ml) was 215 times greater than that obtained in the air outside buildings having been disputes about the removal of asbestos-containing materials in the US. It is the same for the average concentration measured by the Association of Quebec asbestos mine in Asbestos by TEM in 1997 of 0.004 f / ml. Unlike sampling that was conducted in 2000 by the Ministry of Environment of Quebec, no asbestos fiber was detected in 2005 in the ambient air of Thetford Mines near land containing embankments of asbestos. The concentrations of asbestos fibers measured in indoor air of 26 homes of the city of Thetford Mines in 2003 and 2004 by the Association of Victims of Quebec asbestos ranged from <0.000553 to 0.010 fiber PCMe / ml (Phase contrast microscopy or equivalent) with an average of 0.0018 PCMe fiber / ml. This average concentration is 1.7 to 1.4 times lower than that observed in the late 1990s in 17 schools in Quebec (0.0031 PCMe fiber / ml) and in two residences affected by dust generated by the collapse the towers of the World Trade Center in 2001 (0.0026 PCMe fiber / ml). It is 16-45 times higher than those observed in indoor air of buildings that have been disputes about the removal of asbestos-containing materials in the US from 1980 until in the early 2000s (0.00004 to 0.00011 PCMe fiber / ml). No data on exposure to asbestos fibers in the general population caused by asphalt mixtures containing asbestos present on Quebec roads is available. Exposure to asbestos in the workplace in Quebec Mining
In 2004, in Montreal and Quebec City, the total fiber concentrations measured in outdoor air by the Ministry of Sustainable Development, Environment and Parks (MDDEP) and from 117 samples analyzed by optical microscope phase contrast (PCM) extended from <0.0015 to 0.0054 fiber / ml (f / ml) whereas the analyzes in transmission electron microscopy (TEM) of five samples were not identified fiber of asbestos. In the town of Asbestos, average annual fiber concentrations in ambient air reported between 1998 and 2005 by the Jeffrey mine ranged from 0.003 to 0.007 f / ml depending on the sampling site (unspecified method of analysis). In the city of Thetford Mines, in 2004 the total fiber concentrations measured in outdoor air by the MDDEP from 125 samples analyzed by PCOM ranged from <0.056 and 0.0015 f / ml. The concentrations of asbestos fibers measured from seven samples analyzed by TEM ranged from <0.0006 f / ml to 0.0082 f / ml with an average of 0.0043 f / ml. The average concentration of asbestos fibers in the measured outside air Thetford Mines in 2004 by MSDEP (0.0043 f / ml) was 215 times greater than that obtained in the air outside buildings having been disputes about the removal of asbestos-containing materials in the US. It is the same for the average concentration measured by the Association of Quebec asbestos mine in Asbestos by TEM in 1997 of 0.004 f / ml. Unlike sampling that was conducted in 2000 by the Ministry of Environment of Quebec, no asbestos fiber was detected in 2005 in the ambient air of Thetford Mines near land containing embankments of asbestos. The concentrations of asbestos fibers measured in indoor air of 26 homes of the city of Thetford Mines in 2003 and 2004 by the Association of Victims of Quebec asbestos ranged from <0.000553 to 0.010 fiber PCMe / ml (Phase contrast microscopy or equivalent) with an average of 0.0018 PCMe fiber / ml. This average concentration is 1.7 to 1.4 times lower than that observed in the late 1990s in 17 schools in Quebec (0.0031 PCMe fiber / ml) and in two residences affected by dust generated by the collapse the towers of the World Trade Center in 2001 (0.0026 PCMe fiber / ml). It is 16-45 times higher than those observed in indoor air of buildings that have been disputes about the removal of asbestos-containing materials in the US from 1980 until in the early 2000s (0.00004 to 0.00011 PCMe fiber / ml). No data on exposure to asbestos fibers in the general population caused by asphalt mixtures containing asbestos present on Quebec roads is available. Exposure to asbestos in the workplace in Quebec Mining
Since 2000, no publication on levels of exposure of workers in the mining regions of Thetford Mines and Asbestos have been identified.
Industry
Between 2005 and 2009, from nine Quebec institutions that used chrysotile asbestos in their manufacturing process or those where workers were handling asbestos products, none did so safely.
In four of the nine establishments where asbestos exposure was evaluated, 22 workers were exposed to levels ≥ 0.1 fibers / ml (f / ml). Of these, two workers who came from the same plant were exposed above the weighted average exposure value of 1 f / ml, despite the dampening materials in the samples.
In 2010, the Ministry of Transportation of Quebec has identified 28 asphalt plants equipped for the manufacture of bituminous mixtures containing asbestos throughout Quebec. After verification, only 20 plants were located and four of them were in operation. Measures of worker exposure were conducted in one of these plants. The exposure levels were <0.1 f / ml.Construction Sector
In four of the nine establishments where asbestos exposure was evaluated, 22 workers were exposed to levels ≥ 0.1 fibers / ml (f / ml). Of these, two workers who came from the same plant were exposed above the weighted average exposure value of 1 f / ml, despite the dampening materials in the samples.
In 2010, the Ministry of Transportation of Quebec has identified 28 asphalt plants equipped for the manufacture of bituminous mixtures containing asbestos throughout Quebec. After verification, only 20 plants were located and four of them were in operation. Measures of worker exposure were conducted in one of these plants. The exposure levels were <0.1 f / ml.Construction Sector
Among the 2475 samples of material collected from high risk projects that contained asbestos, 75% contained chrysotile alone, 15% of chrysotile in the presence of other types of fiber and only 10% amphibole.
Samples with chrysotile usually came from ceilings, walls, elbows and floors.
Samples with amosite found themselves mainly in the pipes and elbows.
Among 3,000 air samples collected at high-risk sites, 43% had concentrations ≥ 1 fiber / ml (f / ml) (the exposure standard for chrysotile asbestos), 13% had concentrations above f 5 / ml and 5% had concentrations greater than 10 f / ml with a maximum value of 96 f / ml. However, only 3% of samples were taken in the breathing zone of workers, 52% in the breathing zone of walkers and 42% in fixed position. These conditions can have effect for underestimating the number of reference values for overtaking.
Among 2,616 air samples collected during asbestos removal in the locker room, 77% had concentrations of fibers at or above 0.01 f / ml (the dismantling of pregnant criterion on high-risk construction sites) compared to 14% in related areas. As against 46% of the samples in the locker room and 74% in related areas did not meet the conditions prescribed optimal sampling.
During asbestos removal, emissions of asbestos fibers seem more intense during waste recovery, removal and demolition materials compared to cleaning tasks, sealing and inspection.
Of 23 099 samples of materials containing asbestos in 1550 listed buildings in all of Quebec, 10,538 contained chrysotile. Of these 10 538 samples, 95% contained chrysotile only 5% contained a mixture of chrysotile and amphibole.
Materials containing chrysotile were mainly heat-insulated pipe, flockings, flooring and plates of asbestos-cement.
Materials containing amosite and crocidolite were mainly heat-insulated pipe.
In 2004, according to the Ministry of Transport of Quebec, concentrations of total fibers in ambient air along a road in the Chaudière-Appalaches region including asphalt mixes containing asbestos prior to removal these coated ranged from <0.001 and <0.004 f / ml (sic) in optical phase contrast microscopy (PCM). The measurements carried out during the removal of the coated operations, mobile station (n = 17) revealed that the concentrations varied between 0.09 and <0.90 f / ml according to the analysis by PCM. Actinolite was present in three of the five samples analyzed by transmission electron microscopy. Biometrology fibers in lung tissue of Quebec workers NEW
Samples with chrysotile usually came from ceilings, walls, elbows and floors.
Samples with amosite found themselves mainly in the pipes and elbows.
Among 3,000 air samples collected at high-risk sites, 43% had concentrations ≥ 1 fiber / ml (f / ml) (the exposure standard for chrysotile asbestos), 13% had concentrations above f 5 / ml and 5% had concentrations greater than 10 f / ml with a maximum value of 96 f / ml. However, only 3% of samples were taken in the breathing zone of workers, 52% in the breathing zone of walkers and 42% in fixed position. These conditions can have effect for underestimating the number of reference values for overtaking.
Among 2,616 air samples collected during asbestos removal in the locker room, 77% had concentrations of fibers at or above 0.01 f / ml (the dismantling of pregnant criterion on high-risk construction sites) compared to 14% in related areas. As against 46% of the samples in the locker room and 74% in related areas did not meet the conditions prescribed optimal sampling.
During asbestos removal, emissions of asbestos fibers seem more intense during waste recovery, removal and demolition materials compared to cleaning tasks, sealing and inspection.
Of 23 099 samples of materials containing asbestos in 1550 listed buildings in all of Quebec, 10,538 contained chrysotile. Of these 10 538 samples, 95% contained chrysotile only 5% contained a mixture of chrysotile and amphibole.
Materials containing chrysotile were mainly heat-insulated pipe, flockings, flooring and plates of asbestos-cement.
Materials containing amosite and crocidolite were mainly heat-insulated pipe.
In 2004, according to the Ministry of Transport of Quebec, concentrations of total fibers in ambient air along a road in the Chaudière-Appalaches region including asphalt mixes containing asbestos prior to removal these coated ranged from <0.001 and <0.004 f / ml (sic) in optical phase contrast microscopy (PCM). The measurements carried out during the removal of the coated operations, mobile station (n = 17) revealed that the concentrations varied between 0.09 and <0.90 f / ml according to the analysis by PCM. Actinolite was present in three of the five samples analyzed by transmission electron microscopy. Biometrology fibers in lung tissue of Quebec workers NEW
The fiber content in the lungs of 123 Quebec workers with asbestosis, mesothelioma or lung cancer associated with exposure to asbestos and who had a biometrological analysis between 1988 and 2007 has been described.
Just over 85% of workers had chrysotile in their lung tissue; 76% had tremolite, amosite 64% and 43% crocidolite.
In general, concentrations of chrysotile and tremolite fibers are higher than those of amosite and crocidolite fibers.
Chrysotile fibers of any length were observed in the lungs of some workers over 30 years after the end of exposure. Their chrysotile concentrations are higher than that of a reference population.
The set of fibers is distributed in 80% of fine short fibers and asbestos, and 20% of WHO fibers. However, in epidemiological studies, the researchers established the link between exposure to asbestos and the diseases with the help of measuring WHO fibers. We must therefore wonder about the power of short, fine fibers.
In workers exposed in the mining sector and suffering from one or the other of asbestos-related diseases, concentrations of tremolite and chrysotile are highest; amosite concentrations are higher among workers in the maintenance and repair of structures or materials containing asbestos; among construction workers, amosite and tremolite dominate.
Just over 85% of workers had chrysotile in their lung tissue; 76% had tremolite, amosite 64% and 43% crocidolite.
In general, concentrations of chrysotile and tremolite fibers are higher than those of amosite and crocidolite fibers.
Chrysotile fibers of any length were observed in the lungs of some workers over 30 years after the end of exposure. Their chrysotile concentrations are higher than that of a reference population.
The set of fibers is distributed in 80% of fine short fibers and asbestos, and 20% of WHO fibers. However, in epidemiological studies, the researchers established the link between exposure to asbestos and the diseases with the help of measuring WHO fibers. We must therefore wonder about the power of short, fine fibers.
In workers exposed in the mining sector and suffering from one or the other of asbestos-related diseases, concentrations of tremolite and chrysotile are highest; amosite concentrations are higher among workers in the maintenance and repair of structures or materials containing asbestos; among construction workers, amosite and tremolite dominate.
Effects of asbestos on the health of the general population of Quebec
Pleural mesothelioma
Pleural mesothelioma
In Quebec, 1,530 new cases of mesothelioma of the pleura (1210 men and 320 women) were registered in Quebec File tumors from 1982 to 2002. The average annual incidence rate adjusted for age were 1, 98 per 100 000 person-years in men and 0.41 per 100,000 person-years in women.
From 1982 to 2002, a significant increase in the annual incidence rate of pleural mesothelioma adjusted for age was observed in men. This increase corresponds to an average annual growth rate of 3.6%, which represents a value lower than that which had been calculated for the period from 1982 to 1996. No significant time trend was observed among women.
From 1981 to 2003, 1059 pleural cancer deaths were recorded in the file of deaths including 769 men and 290 women.
Regionally, the standardized incidence rate of mesothelioma of the pleura are significantly higher in men and women of Chaudière-Appalaches and men in the Montérégie and Lanaudière. Furthermore, they are significantly lower among men in the Bas-Saint-Laurent and Outaouais. The geographical distribution of significant excess incidence rates coincides with that of excess pleural cancer mortality.
Nationally, the incidence rate of mesothelioma among men and women in Quebec were the highest in Canada for the period from 1993 to 1997.
Internationally, comparisons carried out for the period 1993 to 1997 show that only the standardized incidence rates for mesothelioma of the pleura, peritoneum and pericardium gathered men from New Zealand, the Nether- Netherlands, several regions of the United Kingdom and Australia were higher than in Quebec. In women, significant excesses of mesothelioma compared to Quebec have been observed only in Western Australia and Scotland.
A validation study of the diagnosis of mesothelioma cases recorded under the Québec Tumour File in 2001 and 2002 showed that 73% to 77% of cases were judged definite or probable by a panel of three medical specialists (pulmonologist, a radiologist and a pathologist) to review summaries of files deemed of satisfactory quality. These percentages compare favorably with what is described in the scientific literature. The corollary of this result is that about 25% of cases may not be mesothelioma. The study does not allow to verify the presence of mesothelioma cases registered from another in the diagnosis of tumors File.
From 1982 to 2002, a significant increase in the annual incidence rate of pleural mesothelioma adjusted for age was observed in men. This increase corresponds to an average annual growth rate of 3.6%, which represents a value lower than that which had been calculated for the period from 1982 to 1996. No significant time trend was observed among women.
From 1981 to 2003, 1059 pleural cancer deaths were recorded in the file of deaths including 769 men and 290 women.
Regionally, the standardized incidence rate of mesothelioma of the pleura are significantly higher in men and women of Chaudière-Appalaches and men in the Montérégie and Lanaudière. Furthermore, they are significantly lower among men in the Bas-Saint-Laurent and Outaouais. The geographical distribution of significant excess incidence rates coincides with that of excess pleural cancer mortality.
Nationally, the incidence rate of mesothelioma among men and women in Quebec were the highest in Canada for the period from 1993 to 1997.
Internationally, comparisons carried out for the period 1993 to 1997 show that only the standardized incidence rates for mesothelioma of the pleura, peritoneum and pericardium gathered men from New Zealand, the Nether- Netherlands, several regions of the United Kingdom and Australia were higher than in Quebec. In women, significant excesses of mesothelioma compared to Quebec have been observed only in Western Australia and Scotland.
A validation study of the diagnosis of mesothelioma cases recorded under the Québec Tumour File in 2001 and 2002 showed that 73% to 77% of cases were judged definite or probable by a panel of three medical specialists (pulmonologist, a radiologist and a pathologist) to review summaries of files deemed of satisfactory quality. These percentages compare favorably with what is described in the scientific literature. The corollary of this result is that about 25% of cases may not be mesothelioma. The study does not allow to verify the presence of mesothelioma cases registered from another in the diagnosis of tumors File.
Peritoneal mesothelioma
In Quebec, 170 new cases of mesothelioma of the peritoneum (98 men and 72 women) were registered in Quebec File tumors from 1982 to 2002. The average annual incidence rate adjusted for age were 0.15 per 100 000 person-years in men and 0.09 per 100,000 person-years in women. The annual incidence rates showed no significant trend and no region of Quebec showed significant excess or deficit for this mesothelioma.
Asbestosis
From 1992 to 2004, 2072 people (1993 men and 79 women) were registered in the system ‘maintenance and operating data for the study of hospital customers “(MED-ECHO) with first mention of asbestosis as primary or secondary diagnosis.
Annual average rates of hospitalization with first mention of asbestosis were 4.80 per 100 000 person-years in men and 0.14 per 100,000 person-years in women. No significant temporal trend in annual rates were observed neither in men nor women.
From 1981 to 2003, 195 deaths from asbestosis were recorded including 191 deaths File men and four women.
Significant excess hospitalizations asbestosis were observed among men and women of Chaudière-Appalaches and men in the Eastern Townships and Lanaudière. Regarding mortality from asbestosis, significant excesses were observed only in men Chaudière-Appalaches and Estrie.
Annual average rates of hospitalization with first mention of asbestosis were 4.80 per 100 000 person-years in men and 0.14 per 100,000 person-years in women. No significant temporal trend in annual rates were observed neither in men nor women.
From 1981 to 2003, 195 deaths from asbestosis were recorded including 191 deaths File men and four women.
Significant excess hospitalizations asbestosis were observed among men and women of Chaudière-Appalaches and men in the Eastern Townships and Lanaudière. Regarding mortality from asbestosis, significant excesses were observed only in men Chaudière-Appalaches and Estrie.
Evaluation of the risk of lung cancer and mesothelioma in the general population of Thetford Mines
An evaluation of the risk of lung cancer and mesothelioma among residents of the city of Thetford Mines was performed using two approaches. The excess lifetime risk of death for these two cancers estimated using the approach based on the guidelines of the Ministry of Health and Social Services was 72, 110 or 125 per 100,000 residents in Thetford Mines and continually exposed to asbestos throughout their lives.
The excess lifetime risk of death for these same cancers estimated using the approach based on the model of Berman and Crump was 8.2 per 100,000 exposed persons.
By comparison, the risks associated with concentrations of asbestos fibers in indoor and outdoor air to buildings in the US involving materials containing asbestos were calculated. They ranged from 0.46 to 7.1 per 100,000 people according used approach.
This risk assessment includes uncertainties in the determination of carcinogenic factors and the concentrations used to determine the average exposure dose for life. It must therefore be interpreted with caution.
The excess lifetime risk of death for these same cancers estimated using the approach based on the model of Berman and Crump was 8.2 per 100,000 exposed persons.
By comparison, the risks associated with concentrations of asbestos fibers in indoor and outdoor air to buildings in the US involving materials containing asbestos were calculated. They ranged from 0.46 to 7.1 per 100,000 people according used approach.
This risk assessment includes uncertainties in the determination of carcinogenic factors and the concentrations used to determine the average exposure dose for life. It must therefore be interpreted with caution.
Effects of asbestos on the health of the workers of Quebec ↑
New cases of asbestos-related diseases among workers ↑
New cases of asbestos-related diseases among workers ↑
From 1988 to 2003, 1348 workers were achieved in 1512 related diseases exposure to asbestos recognized as occupational lung diseases by the Special Committee on occupational lung diseases (CSMPP) following a complaint to the Commission Health and safety at work in Quebec. Of these workers, 57.3% had asbestosis, mesothelioma 27.9% and 27.0% lung cancer.
The workers with these diseases were divided into the following occupational exposure environments:
29.1% in mining
28.4% in maintenance / repair products or structures containing asbestos
21.0% in construction
11.3% in processing plants
10.2% in other settings.
As the occupations are generally the same for workers in the construction and maintenance / repair, the two sectors were combined. The percentage of workers suffering from an illness related to exposure to asbestos from these two sectors (49.4%) exceeds that of the miners.
The majority of mesothelioma workers gathered came from sectors of construction and maintenance / repair (59.5%), while lung cancer came from mines primarily workers (56.5%).
During the study period, there was an increase in the number of workers suffering from asbestos-related disease in the sectors of construction, maintenance / repair and the other category. The number of cases reported in the mining and processing remained relatively stable.
The workers with these diseases were divided into the following occupational exposure environments:
29.1% in mining
28.4% in maintenance / repair products or structures containing asbestos
21.0% in construction
11.3% in processing plants
10.2% in other settings.
As the occupations are generally the same for workers in the construction and maintenance / repair, the two sectors were combined. The percentage of workers suffering from an illness related to exposure to asbestos from these two sectors (49.4%) exceeds that of the miners.
The majority of mesothelioma workers gathered came from sectors of construction and maintenance / repair (59.5%), while lung cancer came from mines primarily workers (56.5%).
During the study period, there was an increase in the number of workers suffering from asbestos-related disease in the sectors of construction, maintenance / repair and the other category. The number of cases reported in the mining and processing remained relatively stable.
Deaths linked to asbestos among workers
Between 2005 and 2011, asbestos was responsible for 77-89% of all deaths from occupational diseases which have been filed on the board of the Commission for health and occupational safety of Quebec and for which the decision to agree to compensate was made.
Screening for asbestosis in construction
In 2006, 925 workers from seven construction trades in three regions of Quebec (Montérégie, Laval, Lanaudière) spent a screening radiographic asbestosis. Of the 772 radiographs available at the time of the study, six (0.8%) had abnormalities compatible with asbestosis. Furthermore, 142 (18.4%) showed pleural plaques and pleural thickening.
The cases of asbestosis recognized by the 1967-2003 CSMPP represent 35.0% of individuals hospitalized with first mention of asbestosis registered in the system ‘maintenance and operating data for Hospital Customer study (MED-ECHO) from 1988 to 2003.
Notifiable Diseases (MADO) related to the exposure to asbestos NEW
Average Mesothelioma Settlement, asbestosis and lung cancer linked to asbestos whose occupational origin has been confirmed by the CSMPP are notifiable diseases by doctors since 2003.
Between 2006 and 2010, 160 asbestosis, lung cancer and 28 53 mesothelioma were reported on average each year.
Only two asbestosis and mesothelioma are 16 original other than professional. This is explained by the fact that these are mostly physicians CSMPP who report their cases.
Among the cases of occupational origin, just over half of the cases were exposed to insulation (38%) and dust (15%).
Just under 50% of cases were exposed in an unspecified industry. The other workers were exposed mainly in the mining, quarrying and oil wells and buildings and public works. Just over half of the workers were construction workers (39%) and mining (13%). (Source:. Surveillance of notifiable diseases in Quebec Diseases of chemical or physical origin of diseases and intoxications of Report chemical origin declared in Quebec from 2005 to 2010).
Between 2006 and 2012, no new asbestos-related disease were reported among workers of the mines in the Estrie region hired in 1975. (Source: Unpublished data R. Simard Extraction of MADO file the Eastern Townships. September 2012). In the Chaudière-Appalaches region, we counted eight (Source: V Bernier, P. Deshaies Diseases of asbestos in the county regional municipality Appalachian notifiable disease investigations Analysis Report compiled from 2006. and in August 2012 in response to a journalist request. Agency for Health and Social Services Chaudière-Appalaches. January 2013).
Between 2006 and 2010, 160 asbestosis, lung cancer and 28 53 mesothelioma were reported on average each year.
Only two asbestosis and mesothelioma are 16 original other than professional. This is explained by the fact that these are mostly physicians CSMPP who report their cases.
Among the cases of occupational origin, just over half of the cases were exposed to insulation (38%) and dust (15%).
Just under 50% of cases were exposed in an unspecified industry. The other workers were exposed mainly in the mining, quarrying and oil wells and buildings and public works. Just over half of the workers were construction workers (39%) and mining (13%). (Source:. Surveillance of notifiable diseases in Quebec Diseases of chemical or physical origin of diseases and intoxications of Report chemical origin declared in Quebec from 2005 to 2010).
Between 2006 and 2012, no new asbestos-related disease were reported among workers of the mines in the Estrie region hired in 1975. (Source: Unpublished data R. Simard Extraction of MADO file the Eastern Townships. September 2012). In the Chaudière-Appalaches region, we counted eight (Source: V Bernier, P. Deshaies Diseases of asbestos in the county regional municipality Appalachian notifiable disease investigations Analysis Report compiled from 2006. and in August 2012 in response to a journalist request. Agency for Health and Social Services Chaudière-Appalaches. January 2013).
0 Response to "Average Mesothelioma Settlement"
Posting Komentar