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Priority Substances List One (PSL1) Follow-up Reports Available
The first Priority Substances List (PSL1) was published in 1989
and included 44 substances or groups of substances. Environmental
assessments and human health assessments were completed under
the Priority Substances Assessment Program by early 1994. Assessment
Reports for each of these PSL1 substances were completed and published
following a critical review of relevant identified data. Conclusions
of whether the substances were considered toxic under the Canadian
Environmental Protection Act (CEPA) were published.
There were 13 substances from PSL1 for which there was insufficient
information to conclude the substances as toxic under all criteria
examined. The final Ministerial decisions and recommendations
for these substances will be published in the Canada Gazette Part
I on April 3, 2004. The Follow-up Report indicates that two substances,
tetrachlorobenzenes and pentachlorobenzene, are considered "toxic,"
and three substances, 1,2-Dichlorobenzene, 1,4-Dichlorobenzene,
and trichlorobenzenes, are not considered "toxic," as
defined in CEPA 1999. It is also recommended that tetrachlorobenzenes
and pentachlorobenzene be considered for virtual elimination (VE)
under CEPA 1999. You
may view the report on Environment Canada's web site.
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