http://www.mlive.com/news/index.ssf/2017/01/ijc_tap_great_lakes_report.html

“In November, the IJC issued a 25-page report advising both governments take decisive steps to protect human health and the environment by reducing polybrominated diphenyl ethers (PBDEs) in the lakes. The brominated flame retardants, which are bioaccumulative and found in many products, have been in use since the 1970s and exposure has been linked to cancers, reproductive health, thyroid, neurobehavioral and developmental disorders.”

US and Canada efforts towards cleaning up PCBs and other toxic chemicals in Au Sable river and Lake Huron.