We need to know full extent of this toxic threat in classrooms so that we test for PCBs. My report → http://www.markey.senate.gov/news/press-releases/new-report-from-senator-markey-details-widespread-presence-of-toxic-chemicals-in-nations-schools … #ToxicChemicalspic.twitter.com/lEO9oE0nO8
8:58 AM - 5 Oct 2016
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