Toxic substances list: oxidic, sulphidic, and soluble inorganic nickel compounds

Nickel is a naturally occurring element that is ubiquitous in the environment principally in the divalent state. Approximately 197 000 tonnes (t) of nickel are currently produced per year in Canada, most of which is sold abroad. Nickel and its alloys are used in a wide variety of industrial applications for the automobile, shipbuilding, electrical, oil, food, and chemical industries. Nickel enters the Canadian freshwater and terrestrial (soil) environment as a result of natural weathering and erosion of geological materials, e.g., glacial overburden and bedrock. Nickel is also released into the environment in Canada as a result of human activities including mining, smelting, refining, alloy processing, scrap metal reprocessing, other metal operations, fuel combustion, and waste incineration.

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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