Toxic substances list: inorganic arsenic compounds

Arsenic is present in the aquatic and terrestrial environments because of natural weathering and erosion of rock and soil, and human activities (including gold- and base-metal processing, the use of arsenical pesticides, coal-fired power generation and the disposal of domestic and industrial waste materials).

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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