Risk assessment of schedule 1 substances

"A substance is toxic if it is entering or may enter the environment in a quantity or concentration or under conditions that:

  1. have or may have an immediate or long-term harmful effect on the environment or its biological diversity;
  2. constitute or may constitute a danger to the environment on which life depends; or
  3. constitute or may constitute a danger in Canada to human life or health." (Section 64).
Risk assessment
Substance Risk
(4-Chlorophenyl)cyclopropylmethanone, O-[(4-nitrophenyl)methyl]oxime a
1,1,1-Trichloroethane a
1,2-Dichloroethane c
1,3-Butadiene b and c
2-Butoxyethanol c
2-Methoxyethanol c
3,3'-Dichlorobenzidine c
Acetaldehyde b and c
Acrolein c
Acrylonitrile c
Ammonia dissolved in water a
Benzene c
Benzidine and benzidine dihydrochloride c
Bis(2-ethylhexyl) phthalate c
Bis(chloromethyl) ether c
Carbon Dioxide b
Chlorinated wastewater effluents a
Chlorobiphenyls a, b and c
Chloromethyl methyl ether c
Creosote-impregnated waste materials from creosote-contaminated sites a
Dichloromethane a and c
Effluents from pulp mills using bleaching a
Effluents from textile mills that use wet processing a
Ethylene oxide c
Formaldehyde b and c
Gaseous ammonia c
Hexachlorobenzene c
Hexachlorobutadiene a
Hexavalent chromium compounds a and c
Hydrofluorocarbons b
Inorganic arsenic compounds a and c
Inorganic cadmium compounds a and c
Inorganic chloramines a
Inorganic fluorides a
Methane b
N-Nitrosodimethylamine c
Nitric oxide a and c
Nitrogen dioxide a and c
Nitrous oxide b
Nonylphenol and its ethoxylates a
Oxidic, sulphidic, and soluble inorganic nickel compounds a
Ozone a and c
Particulate matter containing metals that is released in emissions from copper smelters or refineries, or from both a and c
Particulate matter containing metals that is released in emissions from zinc plants a and c
Pentachlorobenzene (QCB) a
Perfluorocarbons b
Polychlorinated dibenzodioxins and polychlorinated dibenzofurans a and c
Polycyclic aromatic hydrocarbons a and c
Refractory ceramic fibres c
Respirable particulate matter less than or equal to 10 microns c
Sulphur dioxide a and c
Sulphur hexafluoride b
Tetrachlorobenzenes (TeCBs) a
Tetrachloroethylene a
Tributyltetradecylphosphonium chloride a
Trichloroethylene a and c
Volatile organic compounds that participate in atmospheric photochemical reactions a and c
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