| ECOLOGY |
Canada proposes ban on chlorinated butadiene Canada is proposing to add hexachlorobutadiene (HCBD) to its list of chemicals slated for "virtual elimination." The substance is generated as a by-product during the manufacture of some chlorinated compounds, and HCBD may be released when those chemicals are used, according to Environment Canada. The agency determined that HCBD is persistent, bioaccumulative, and present in the environment as a result of human activity. A scientific assessment found that HCBD may have an immediate or long-term harmful effect on the environment or on biodiversity. According to the Aug. 16 proposal, virtual elimination is defined as a maximum concentration of 0.06 mg/L of HCBD in chlorinated solvents. The proposal adds that the estimated average daily intake of HCBD by the Canadian population is below the federal intake standard for the chemical |
| UPDATE | 08.03 |
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