Abstract
Average cadmium concentrations in the air (particulate samples) at two Canadian Arctic sites, Resolute (74.7°N, 95.0°W) and Coral Harbor (64.2°N, 83.3°W) declined from about 0.2 ng m−3 to about 0.05 ng m−3 between the early 1970s and 2000. Cadmium concentrations in the air at southern Canada sites were much higher (0.05–1.12 ng m−3) than those measured in the Arctic. The concentrations of cadmium measured at all sites decreased by a factor of three to seven between 1973 and 2000. This decrease correlates with the reduction in anthropogenic emissions from the production of non‐ferrous metals following the introduction of emission control technologies.
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