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
SubstanceRisk
(4-Chlorophenyl)cyclopropylmethanone, O-[(4-nitrophenyl)methyl]oximea
1,1,1-Trichloroethanea
1,2-Dichloroethanec
1,3-Butadieneb and c
2-Butoxyethanolc
2-Methoxyethanolc
3,3'-Dichlorobenzidinec
Acetaldehydeb and c
Acroleinc
Acrylonitrilec
Ammonia dissolved in watera
Benzenec
Benzidine and benzidine dihydrochloridec
Bis(2-ethylhexyl) phthalatec
Bis(chloromethyl) etherc
Carbon Dioxideb
Chlorinated wastewater effluentsa
Chlorobiphenylsa, b and c
Chloromethyl methyl etherc
Creosote-impregnated waste materials from creosote-contaminated sitesa
Dichloromethanea and c
Effluents from pulp mills using bleachinga
Effluents from textile mills that use wet processinga
Ethylene oxidec
Formaldehydeb and c
Gaseous ammoniac
Hexachlorobenzenec
Hexachlorobutadienea
Hexavalent chromium compoundsa and c
Hydrofluorocarbonsb
Inorganic arsenic compoundsa and c
Inorganic cadmium compoundsa and c
Inorganic chloraminesa
Inorganic fluoridesa
Methaneb
N-Nitrosodimethylaminec
Nitric oxidea and c
Nitrogen dioxidea and c
Nitrous oxideb
Nonylphenol and its ethoxylatesa
Oxidic, sulphidic, and soluble inorganic nickel compoundsa
Ozonea and c
Particulate matter containing metals that is released in emissions from copper smelters or refineries, or from botha and c
Particulate matter containing metals that is released in emissions from zinc plantsa and c
Pentachlorobenzene (QCB)a
Perfluorocarbonsb
Polychlorinated dibenzodioxins and polychlorinated dibenzofuransa and c
Polycyclic aromatic hydrocarbonsa and c
Refractory ceramic fibresc
Respirable particulate matter less than or equal to 10 micronsc
Sulphur dioxidea and c
Sulphur hexafluorideb
Tetrachlorobenzenes (TeCBs)a
Tetrachloroethylenea
Tributyltetradecylphosphonium chloridea
Trichloroethylenea and c
Volatile organic compounds that participate in atmospheric photochemical reactionsa and c
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