The objective of NAtChem/Toxics is to produce a database and analysis facility of Canadian and U.S. air and precipitation toxic chemicals data for use in the study of hazardous chemicals in the atmosphere.  Its purpose is to provide regional-scale analysis of air and precipitation chemistry data in order to understand the long range transport of air pollutants.

Toxic chemicals play an important role in human health and the environment. The objective of the Air Toxics Research Program at Environment Canada is to understand and predict environmental cycling of air toxics, with the intent of providing advice and guidance to reduce risks to human health and the environment. The NAtChem/Toxics database and analysis facility is aimed at assisting in the archival and analysis of the data in an effort to better understand and predict the behaviour of airborne toxic chemicals.

Currently, the Toxics Program is focused on two regions: the Great Lakes and Arctic.

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