asbestos information Archives - Démolition Francis Lachapelle

Summary of assessement of the presence of asbestos

1997 First report on the presence of asbestos fiber in a educational establishment

In March 1997, At the CLSC des îles annual public meeting, a citizen complained of the presence of asbestos in the coating ceiling at high school : École polyvalente de l’Étang-du-Nord aux Îles-de-la-Madeleine. Des Îles School Board, had made a summary analysis of the material covering the ceilings on the request of the CLSC, and the results have dismantled the presence of chrysotile and amphibole in the insulation. Therefore, an analysis of the air quality in the high school was requested in turn from Des Îles School Board to the CLSC. The at work health team of the Gaspésie-Îles-de-la-Madeleine public health department took this mission in charge. The sampling results showed the presence of amosite and chrysotile in the insulation. The latter was projected as a flock across the ceiling on most ceilings of the high school. The material was in open air and damaged in some areas. Dust samples, as well as ambient air were also collected. Again, amosite and chrysotile were present in the dust. In the air, asbestos concentrations ranged from 0.15 optical fiber per cubic centimeter of /cc to 0.26 of /cc [-] for samples taken during the day .¹ Since some studies have published the presence of asbestos in the air by counting: electrical fibers per square cube, six samples were submitted to an electronic analysis transmission. The results showed that amosite fibers concentrations were ranged from 0.002 to 0035 electronic fibers per cubic centimeter (ef / cc) for samples taken during the day. At this time in 1997, in Quebec there were no environmental exposure standards. However, Ontario fixed the norm in the air at 0.04 electronic fibers per milliliter (ef / mL). We wonder then, if these measured doses are dangerous for the high school occupants? The report provides as comparison, it is estimated, that a worker should be exposed to asbestos for 500 years at found doses in the high school before developing asbestosis. In regard to cancer, there is a significant risk, but difficult to quantify precisely. Since there are no studies on the field at this time, an estimate of the risk was made from mathematical models extrapolating the results in highly exposed workers. Read more on asbestos related diseases By transposing the obtained data, according to Goldberg and Camus, the risk of cancer associated with asbestos due to the highest result obtained at the high school (0.035 ef /mL) is 7 per 10,000 people exposed for workers ( 0,035 ef / mL , 20 years , 240 days / year , 8h / d ) and 2 per 10,000 people exposed for students (0.035 ef / mL , 5 years , 180 days / year , 6h / d) .¹

These results confirmed that there were asbestos fibers in the air at the high school, particularly amosite, a known carcinogen, and that the coating ceiling was damaged. These results were considered worrying by the Department of Public Health since we are talking about a public building and a school. In addition, high proportion of amosite was measured. For these reasons, the Department of Public Health asked the School Board to take the necessary measures to lower the concentration of asbestos fibers in the air and stop the deterioration of the coating ceiling.

Note that in 1997, the Department of Public Health was faced to the lack of clear intervention criteria concerning the concentration of asbestos in the air in public places. The Department of Public Health had recommended that the authorities were in duty to define the health risks associated with environmental exposure to asbestos fibers according to various exposure scenarios to better guide public health interventions in public places.

Actions taken by the Ministry of Education of Quebec (MEQ ) and the Ministry of Health and Social Services (DHSS )

1998 First report on the presence of asbestos fiber in a school

The mentioned above, 1997 report, was a trigger for a series of studies and pilot projects carried out by the IRSST (2) and The INSPQ (3-4). Indeed, in March 1998, the Ministry of Education of Quebec (MEQ) and the Ministry of Health and Social Services (DHSS) had initiated a preventive approach in schools to assess the possibility of exposure to asbestos. A management criteria of 0, 01 (ef / mL) was determined by the DHSS to identify possible emission sources of asbestos fibers in the public buildings air.² Within this preventive approach, a study was initiated to collect a significant number of samples in school buildings locals whose flocked materials were much degraded, and assess concentrations of asbestos fibers in the air to document the capacity of these materials to generate fibers in the air.² The mean concentration was 0.0031 (ef / mL) (77 samples from 17 schools), which is below the management criteria of 0.01 (ef / mL) adopted by the DHSS. Gyms, especially those with a low ceiling, in which run ball activities took place, have recorded higher concentrations of asbestos fibers: up to eight times the management criteria. However, under normal occupation conditions, asbestos fibers levels in the air were below the management criteria. This is no longer true in places where activities fostered contacts with materials. Therefore, the report concludes that the sprayed asbestos even degraded; do not give rise to levels of fibers in the air higher than the management criteria; unless physical contact took place with the sprayed asbestos.² ² www.irsst.qc.ca In the same line of thought, these data were confirmed by a pilot project done by the INSPQ (3) in school locals with materials containing asbestos in poor condition. According to results published in April 2003, it was confirmed that under normal conditions, concentrations of asbestos fibers in the school buildings are in the range of levels found in ambient air outside. Moreover, it has been estimated that “in the worst case” : a six years exposition, between the ages of 5 and 11 years, occurring in a highly contaminated school (0.005 (ef / mL) mixture of amphibole fibers and chrysotile ) engendered a risk of dying from lung cancer or mesothelioma of about 30 cases per million people exposed.³ ³ L’amiante dans les édifices publics, 15 avril 2000

2003 Summary and recommendations reports

In 2003, the INSPQ published a summary and recommendations reports: Fibers of asbestos in the air inside and outside & Epidemiology of diseases related to asbestos exposure in Quebec. Here is a quote of the key findings: In March 1998, a preventive approach regarding sprayed asbestos in elementary and high schools in the province of Quebec was undertaken. This consisted of three steps: identifying school buildings where there was sprayed asbestos, the qualitative assessment of the conservation status of sprayed asbestos and the remedial action to perform. Some 508/3300 buildings owned by 55 school boards have been identified as “where there is a sprayed asbestos” among the 72 existing school boards (with some 3,300 buildings used for teaching). Excluding the fifty buildings whose flocked asbestos locals were not frequented by students, it was found that about 12% of all school buildings in Quebec had sprayed asbestos. The locals visited were classified according to an evaluation grid with three rating: rate 1 and 2 (whose materials are not damaged or begin to deteriorate and require periodic surveillance measures and preventive maintenance); rate 3 ( whose materials are degraded and require corrective action at the earliest, according to a schedule established by the school boards). Of the 508 buildings, 125 locals were rated 1, 13 listed locals were rated 2 and 292 listed locals were rated 3. So far, in year 2000, 60% of these repair works has been done.⁴ ⁴ www.inspq.qc.ca

2008 to 2012 Evolution of asbestos situation assessment in Quebec schools

Following these reports the media and written press were interested in schools situation (unsafe buildings, questionable or even dangerous air quality). Their indignation was because the published studies done by government agencies kept secret the institutions names, those who obtained a rating of 2 or/and 3. Articles and reports published / set wave between 2008 and 2012 on the subject, see references ⁵ to ¹².

This media exposure resulted in fall of 2012, to a publication of the report done by the Auditor General on the air quality in elementary schools operating in four school boards see reference ¹³ to ¹⁶.

In addition, a map and a list of public institutions affected by the presence of asbestos have been made available to the public see reference ¹⁷ to ²⁰.

A process of asbestos removal and restoration took place in schools. Given that school boards face a significant reduction in their budget, the work progressing slowly. Indeed, we note that the process had started in 2004 (see link 18) in schools and continues even in 2016 if we refer to the following articles see reference ²¹ and ²².

*Note that all references are in french

Why the asbestos industry was so important?

The history of asbestos industry spans three centuries. This mineral called ‘ white gold ‘ was discovered in Quebec in the late 19th century. The first mine was opened in 1879 in the name of Murphy mine in Thetford Mines. Then another mine in Asbestos was discovered and became operable in 1881. In the 20th century, asbestos has become a thriving industry and generated significant gains for the province of Quebec. In the 30s, United Kingdom was the first country to adopt a regulation on asbestos dust in factories after a first diagnosis of asbestos-related cancer was documented. Then United Kingdom class asbestosis among compensable occupational diseases. In the 40s, the United States of America follow the same procedure and enact regulations on factories dust in 1949. This sent shock waves throughout the province of Quebec and from February 13 to June 23, 1949 a major illegal general strike was triggered by Thetford-mines and Asbestos mines workers. They claimed better wages, participation in business management and protection against asbestos dust at the workplace. In late June, early July 1949, the strike ended and resulted in a meager wage increase, without taking measures to protect workers from asbestos dust as is the case in the United States of America and United Kingdom. It was only in 1975 that the industry adopts rules for safe handling of asbestos in Quebec. Following the strike occurred in the same year by the CSN affiliated Thetford- Mines employees. In 1978, asbestos was declared carcinogenic by a European community resolution. Meanwhile in Quebec, the National Society of asbestos was created by Quebec government. Its mission was to participate in the exploitation and processing of asbestos in Quebec, as well as finding new business opportunities. In the early 90s, Quebec was the only producer of asbestos in Canada as British Columbia and Newfoundland & Labrador have closed their mines. December 26, 1996, France became the eighth country to ban the use of asbestos in its territory. In 1999, the United Kingdom infringes his footsteps. The European Union announced that from 2005, the use of asbestos will be banned on their entire territories. The 21st century began a lot of controversy in Quebec about the asbestos industry production and exportation. While countries prohibit this mineral in their territory, Quebec continues to defend it. Indeed, June 22, 2011, Canada imposed its veto so that asbestos is not included in the list of dangerous goods listed in Annex III of the Rotterdam Convention of the United Nations. In Canada, sales of chrysotile were estimated at $ 90 million / year. February 16, 2012, the International Cancer Research Centre, an agency of the World Health Organization concluded that asbestos is carcinogenic in all its forms. Fifty eight countries including countries member of the European Union and the United States of America have banned or restricted the use of asbestos in their territories. It was only in September 2012, the Canadian government announced that he will no longer oppose the inclusion of asbestos in the list of hazardous substances in Annex III of the Rotterdam Convention as he did it previously 3 times. So, until today Quebec and therefore Canada has not banned the use of asbestos in their territories. They believe that this product is not dangerous if it is produced and handled safely. For further explanation please contact us.

Category: asbestos information

Presence of asbestos in Quebec schools and institution