Monitoring of persistent toxic substances in Ontario - Great Lakes Basin / prepared by T. Dann and K. Krieger. : En83-17/2000-1E-PDF

"In cooperation with provincial and municipal environmental agencies, the Analysis and Air Quality Division of Environment Canada collects, compiles and analyzes data on over 300 trace contaminants in ambient air. Sampling is carried out at over 40 urban, suburban and rural locations in the country. Categories of species sampled include fine particulates and metals, volatile organics such as benzene and formaldehyde; semi volatile organic compounds such as polycyclic aromatic hydrocarbons and polychlorinated dibenzo-p-dioxins. For many species, sampling has been carried out at the same sites for over 10 years. In 1996, at the request of the Ontario Regional Office of Environment Canada, the compound list was expanded to include a number of additional species that are targeted in the Canada-Ontario agreement (COA) respecting the Great Lakes basin ecosystem"--Introduction.

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