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Announcement – Four Substances from Priority Substances List 1 considered not toxic

Follow-up assessments of four substances previously listed on the first Priority Substances List (PSL1) : styrene, non-pesticidal organotin compounds, 1,1,2,2-tetrachloroethane, and di-n-octyl phthalate, indicate that they are not considered "toxic" under the Canadian Environmental Protection Act (CEPA 1999), Section 64.

There were 13 substances from PSL1 for which there was insufficient information to conclude the substances as toxic under all criteria examined. Environment Canada and Health Canada have since reviewed new and existing information and are now recommending that these four substances not be considered “toxic” under CEPA 1999.

The Assessment Report is available on Environment Canada's web site.

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