First update, dealing with chlorinated paraffins, from Canada Gazette:
Chlorinated paraffins refer to three classes of substances: short chain chlorinated paraffins (i.e. chlorinated paraffins with 10–13 carbon atoms), medium chain chlorinated paraffins (i.e. chlorinated paraffins with 14–17 carbon atoms) and long chain chlorinated paraffins (i.e. chlorinated paraffins with 18 or more carbon atoms). In Canada, these substances are mainly used in metalworking, in plastics/rubber and as lubricating additives.
Chlorinated paraffins were initially assessed under the first Priority Substances List program. The assessment report concluded that short chain chlorinated paraffins constitute or may constitute a danger to human health or life as set out in CEPA 1999 (see footnote 1); however, data identified at that time were considered insufficient to conclude whether short, medium or long chain chlorinated paraffins were harmful to the environment or whether medium or long chain chlorinated paraffins were considered a danger to human health. Discussions aimed at managing the risks posed by short chain chlorinated paraffins were engaged with stakeholders under the framework of the Toxic Substances Management Policy. However, risk management discussions were suspended, pending the generation and review of new information concerning the risk of chlorinated paraffins to human health and the environment.
Final follow-up assessment report on chlorinated paraffins
Environment Canada and Health Canada conducted the follow-up assessment report on chlorinated paraffins pursuant to section 68 of CEPA 1999.
The final assessment concludes that
- all chlorinated paraffins meet the criteria under paragraph 64(c) of CEPA 1999; and
- chlorinated paraffins containing up to 20 carbon atoms (short- and medium-chain chlorinated paraffins, as well as liquid long chain paraffins) meet the criteria under paragraph 64(a) of CEPA 1999.
Based on conclusions of the assessment, it is therefore recommended that all chlorinated paraffins be added to the Schedule 1 of CEPA 1999.
Furthermore, chlorinated paraffins containing up to 20 carbon atoms are predominantly anthropogenic and the available data regarding their persistence and bioaccumulation potential indicates that they satisfy the criteria outlined in the Persistence and Bioaccumulation Regulations, made under CEPA 1999. Chlorinated paraffins containing up to 20 carbon atoms thus meet the criteria for virtual elimination (see footnote 2) of releases to the environment as set out in the Toxic Substances Management Policy.
The second update, on a variety of substances, available here:
Chemical substances used in human activity can have detrimental effects on the environment and human health when released in a certain quantity or concentration in the environment. Scientific assessments of the impact of human and environmental exposure to a number of these substances have determined that these substances are toxic to human health and the environment as per section 64 of the Canadian Environmental Protection Act, 1999 (CEPA 1999).
The objective of the proposed Order Adding Toxic Substances to Schedule 1 to the Canadian Environmental Protection Act, 1999 (hereinafter referred to as the proposed Order) made pursuant to subsection 90(1) of CEPA 1999, is to add the following substances:
- Propanedinitrile, [[4-[[2-(4-cyclohexylphenoxy)ethyl]ethylamino] -2-methylphenyl]methylene]- (CAS No. 54079-53-7);
- Methyloxirane (CAS No. 75-56-9);
- Ethyloxirane (CAS No. 106-88-7);
- Naphthalene (CAS No. 91-20-3);
- Toluene diisocyanates (three substances: CAS No. 26471-62-5, 584-84-9 and 91-08-7);
- 1,2-Benzenediol (CAS No. 120-80-9);
- 1,4-Benzenediol (CAS No. 123-31-9).
to the List of Toxic Substances in Schedule 1 of CEPA 1999. This addition would enable the departments to develop management measures with respect to taking preventive or control actions in relation to these substances.
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