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Hexavalent chromium compounds

Chromium is a naturally occurring metal that is present principally in the trivalent or hexavalent forms in small amounts throughout the Canadian environment. Chromium is used in a wide variety of industrial applications in Canada including the production of stainless and heat-resistant steels, refractory products such as bricks and mortars, and in pigments, metal finishing, leather tanning, and wood preservatives. Both trivalent and hexavalent forms of chromium are released into the environment in Canada as a result of these industrial uses, as well as from the production and combustion of fossil fuels, and the smelting and refining of nonferrous base metals.

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):

Risk Management Tool(s)

Tool(s) developed to manage risks associated with the substance:

Risk Management Supporting Activities for Chromium Electroplating, Chromium Anodizing and Reverse Etching Regulations

Activities supporting the development or implementation of the risk management tool(s):


Consultation (past and present) on the substance:

Other Information


Email address:
Fax number: 819-938-4218

Chemical Production Division
Environment Canada
351 St. Joseph Boulevard, 11th Floor
K1A 0H3

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