Toxic Contaminant Levels in Fog

Toxic chemicals in the atmosphere are a concern because of the
potential impacts these chemicals can have on human health and ecosystem
integrity. The atmosphere has the ability to transport large quantities of
toxic materials over long distances in relatively short time scales. The
Canadian Air Toxics Monitoring Network exists to detect these substances. Toxic
chemicals in air and precipitation in the Atlantic region are measured under
the guidance of several research and monitoring initiatives carried out by
various branches of Environment Canada through programs such as the Canadian
Atmospheric Mercury Network (CAMNet).

Additional Information OR Comments: Contact Gerry Forbes for data.

Sample Site Locations: Currently, there are 19 CAPMoN sites across Canada, 10
of which measure both dry and wet deposition. There is also a special site
located at the Pennsylvania State University in the U.S. for comparison between
CAPMoN and the United States National Atmospheric Deposition Program/National
Trends Network (NADP/NTN). There are five CAPMoN sites located in the Atlantic
provinces: Bay d'Espoir, NF; Goose Bay, NF; Harcourt, NB; Jackson, NS and
Kejimkujik, NS. Kejimkujik measures both precipitation and air chemistry, and
the other four sites measure precipitation chemistry.