I found this interesting.
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Source:
http://www.cnn.com/2016/06/15/health...isk/index.html


This week, the Environmental Working Group released findings that more than 400 known cancer-causing chemicals have been found in the bodies of Americans during research studies.

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After a review of more than 1,000 biomonitoring studies, the group found that up to 420 chemicals known or likely to cause cancer have been detected in blood, urine, hair and other human samples. Nine of these was identified to be above safety limits assigned by the U.S. Environmental Protection Agency and posing non-trivial cancer risks in most Americans, according to the review.

"The presence of a toxic chemical in our bodies does not necessarily mean it will cause harm, but this report details the astounding number of carcinogens we are exposed to in almost every part of life that are building up in our systems," said Curt DellaValle, a senior scientist at the Environmental Working Group and author of the report. "At any given time, some people may harbor dozens or hundreds of cancer-causing chemicals. This troubling truth underscores the need for greater awareness of our everyday exposure to chemicals and how to avoid them."