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Chemistry
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OpenStudy (samad261097):
Harbor sediments in the New Bedford, Massachusetts, area contain PCBs at levels up to 190,000 ppm, according to a report prepared by Grant Weaver of the Massachusetts Coastal Zone Management Office [Environ. Sci. Technol., 16, No. 9, 491A (1982)]. What is the concentration of PCBs in percent? Does this seem reasonable?
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