Dechlorane plus and related compounds in the environment: a review
Ed Sverko1, Gregg T Tomy, Eric J Reiner
1Science and Technology Branch, Environment Canada , Burlington, ON, L7R 4A6, Canada.
Environmental Science & Technology
|May 18, 2011
Summary
Dechlorane Plus (DP), a flame retardant, is now a global environmental contaminant. Research indicates DP and its analogs may be persistent, bioaccumulative, and candidates for the Stockholm Convention.
Area of Science:
- Environmental Chemistry
- Toxicology
- Chemical Engineering
Background:
- Dechlorane Plus (DP) is a high-production volume chlorinated flame retardant.
- DP was recently discovered in the environment, initially in the Great Lakes, but is now recognized as a global contaminant.
- DP production facilities have been identified in North America and China.
Purpose of the Study:
- To investigate the environmental presence and characteristics of Dechlorane Plus (DP) and its analogs.
- To assess the potential for DP and its analogs to be persistent, bioaccumulative, and subject to long-range transport.
- To identify knowledge gaps regarding DP emissions, exposure, and toxicity.
Main Methods:
- Environmental monitoring to detect DP and its analogs.
- Screening-level modeling to predict environmental behavior.
- Identification of DP analogs formed during synthesis.
Main Results:
- DP and its analogs have been detected globally, including along a pole-to-pole transect of the Atlantic Ocean.
- Screening-level modeling aligns with environmental measurements.
- DP and its analogs show potential for persistence, bioaccumulation, and long-range transport.
Conclusions:
- Dechlorane Plus (DP) and its analogs are widespread global contaminants.
- These compounds warrant further investigation as potential Persistent Organic Pollutants (POPs) under the Stockholm Convention.
- Additional research is crucial for quantifying emissions, exposures, and toxicological effects.
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