Comments on: Building a Great Lakes toxic legacy http://greatlakesecho.org/2009/04/21/a-future-toxic-legacy/ Thu, 09 Feb 2012 18:15:22 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Joe Bohr http://greatlakesecho.org/2009/04/21/a-future-toxic-legacy/comment-page-1/#comment-117 Joe Bohr Fri, 24 Apr 2009 19:15:01 +0000 http://greatlakesecho.org/?p=2989#comment-117 The MDEQ Water Bureau has been analyzing fish regularly from several sites in the Great Lakes and inland waters since the early 90s. PCBs, DDT, & chlordane have been steadily declining over that period. The data suggest that toxaphene in fish has been declining as well. Mercury on the other hand has been slowly increasing in Great Lakes fish, but no real trends have been detected in inland waters. Joe Bohr Aquatic Biologist Water Bureau / Michigan Dept. Environmental Quality 517.373.4704 bohrj@michigan.gov The MDEQ Water Bureau has been analyzing fish regularly from several sites in the Great Lakes and inland waters since the early 90s. PCBs, DDT, & chlordane have been steadily declining over that period. The data suggest that toxaphene in fish has been declining as well. Mercury on the other hand has been slowly increasing in Great Lakes fish, but no real trends have been detected in inland waters.

Joe Bohr
Aquatic Biologist
Water Bureau / Michigan Dept. Environmental Quality
517.373.4704 bohrj@michigan.gov

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