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Review
. 2019 Jul;227:329-333.
doi: 10.1016/j.chemosphere.2019.04.052. Epub 2019 Apr 8.

Degradation of Brominated Polymeric Flame Retardants and Effects of Generated Decomposition Products

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Review

Degradation of Brominated Polymeric Flame Retardants and Effects of Generated Decomposition Products

Christoph Koch et al. Chemosphere. .

Abstract

Brominated flame retardants are often associated with adverse environmental effects. Nevertheless, these chemicals are required in order to comply with fire safety standards. Therefore, a better environmental profile is desirable. A "new" class of flame retardants is claimed to fulfil this request while still being feasible for established industrial processes. Different to previous brominated flame retardants, this new group is based on a polymeric structure that could indeed lead to a better environmental profile. However, not much is known about the long-term behaviour of such flame retardants. This short review summarizes what has already been published. With an annual production volume of 26,000 metric tons, "Polymeric FR" is currently the only industrially produced representative of this group. It has been shown to degrade under specific circumstances (following UV and heat exposure). Detected degradation products cause almost no acute toxicity, whereas chronic toxicity might be relevant. Nevertheless, as long as polymeric flame retardants are only used in building insulation, the actual risk seems to be rather limited.

Keywords: Brominated; Degradation; Mixture; PolyFR; Polymeric; Toxicity.

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