The International Journal of Occupational and Environmental Health published a study last week authored by members of the Asbestos Victims Association of Quebec (AVAQ) which claimed that several homes in Thetford Mines are heavily contaminated by asbestos.
Thetford Mines is a town located in south-central Quebec, Canada, named after and built around asbestos mines. Founded in 1876 after the discovery of asbestos, it became the hub of Canada's asbestos-producing region. Most of the chrysotile asbestos mined in Thetford Mines is now shipped to developing countries in southeast Asia, the Middle East and South and Central America. Based upon an analysis of air, dust and soil samples, the AVAQ study concluded that asbestos from piles of mine waste in the area is getting into homes and posing a potential health risk to area residents. An earlier study by the Institut National de Sante Publique due Quebec had already found a significant increase in the incidence of mesothelioma in the Chaudiere-Appalaches region, which includes Thetford Mines and other mining towns, between 1982 and 1996.
Today, less than 700 of the 26,000 residents of Thetford Mines are employed by the asbestos mines. Many residents believe they are vulnerable to developing asbestos-related illnesses simply by breathing the air, and have charged the mining companies with the responsibility of cleaning up the mess. However, not everyone in Thetford Mines is convinced of the dangers of asbestos or of the validity of the AVAQ study. In quick response to the AVAQ study, the Quebec Ministry of Environment has just released the results of its own air sampling study conducted in 2004 which concluded that ambient levels of asbestos do not present an environmental risk and that residents should not be concerned that they are inadvertently being exposed to a cancer-causing mineral.
However, the authors of the AVAQ study have shot back, questioning the methods used in the government study. Specifically, they note that the AVAQ study used standards set by the U.S. Environmental Protection Agency (EPA) when it studied asbestos contamination at ground zero following the 2001 terrorist attacks in New York, whereas Quebec's Environment Department study was based on much less stringent standards used by the Ontario government. According to the AVAQ, the asbestos content in the air in Thetford Mines is ten times above what the EPA would consider acceptable, and that if U.S. standards were applied, people in homes with elevated asbestos levels wouuld not be allowed to live in them until they had been cleaned up.