Toxic substances list: inorganic cadmium compounds

Cadmium (Cd) is present in the Canadian environment as a result of both natural processes (including forest fires, volcanic emissions and weathering of soil, till, and bedrock) and human activities. Of the natural sources of cadmium to the environment, weathering and erosion of cadmium-bearing rocks represent perhaps the most important source. Anthropogenic sources of cadmium entry to the Canadian environment include metal production (particularly base metal smelting and refining), stationary fuel combustion (power generation and heating), transportation, solid waste disposal, and sewage sludge application.

For information on Canada's international engagement on this substance, please visit:

There is more than one CAS number that applies to this group of substances.

Risk Assessment


This substance is entering the environment from the following source(s):


Substances Management Information Line
Chemicals Management Plan
Gatineau, QC K1A 0H3

Telephone: 1-800-567-1999  (in Canada) or 819-938-3232
Fax: 819-938-3231


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