| http://www.w3.org/ns/prov#value | - Some retardants are considered more benign than others, and Arlene Blum is a considered to be an expert on that topic.posted by Dansaman at 3:57 PM on October 23, 2012 [1 favorite] PBDEs have been in wide use since the 1970s (and prior to that other chemicals were used, such as PBBs).
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