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The Government of Canada has published a consultation document on the risk management of short-chain, medium-chain, and long-chain chlorinated alkanes. The consultation period will end on April 14, 2025.
Chlorinated alkanes (CAs), also referred to as chlorinated paraffins, are categorized into three groups based on their carbon chain lengths: Short-chain chlorinated alkanes (SCCAs) have carbon chains containing 10-13 carbon atoms, medium-chain chlorinated alkanes (MCCAs) have between 14 – 17 carbon atoms, and long-chain chlorinated alkanes (LCCAs) have 18 or more carbon atoms.
The Canada screening assessment has concluded that all three groups SCCAs, MCCAs and LCCAs are toxic, and SCCAs have already been banned in Canada.
This consultation concerns:
a proposed ban on the manufacture, import, use and sale of MCCAs and LCCAs up to 20 carbon atoms and also of products containing them,
concentration thresholds for SCCAs and MCCAs, and
possible controls on exports of SCCAs, MCCAs and LCCAs up to 20 carbon atoms.
Comments received during this period will be taken into account for the development of proposed risk management actions.
