The State of Canada's Environment — 1996

Glossary of Selected Terms - V

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Sources for definitions

voc (vocs): See volatile organic compound.

volatile organic compound (voc): Any organic gas, such as propane and benzene, and also found in the vapours of substances such as gasoline, numerous solvents, and oil-based paints (Greater Vancouver Regional District 1994). Volatile organic compounds participate in atmospheric photochemical reactions.

vulnerable: In this report, this term refers to an official designation assigned by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). The term describes any indigenous species, subspecies, or geographically separate population that is particularly at risk because of low or declining numbers, small range, or some other reason but is not a threatened species. See also endangered, extinct, extirpated, and threatened.