Toxic Contaminants in the Gulf of Maine, Volume 55
3 pages matching ppm at Casco in this book
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20 highest acres Biological Effects Surveys blue mussel Boston Bay Boston Harbor area Boston Harbor Boston Boston Harbor sites Cape Cod Bay Casco Bay chemical contaminants coastal waters concen Deer lsland Dorchester Bay environmental estuaries five Boston Harbor flounder livers range flounder were consis Folger Point four Boston Harbor Gulf of Maine Harbor area sites Harbor Boston Harbor Harbor Site 17 Heptachlor highest mean concentration highest nationally Hingham Bay levels of copper longhorn sculpin Maine sites mean concentration level Merrimack River metals Muscongus Bay mussel tissue Narraguagus Bay national mean nationwide NMFS NS&T Program Passamaquoddy Bay Penobscot Bay Pickering lsland point sources ppm at Casco remaining Gulf sites Salem and Boston Salem Harbor second highest mean sediment data SEDIMENTS MUSSELS FISH square miles Status and Trends Stover Point substantially higher tDDT top five toxic contaminants tPAH tPCB trations winter flounder livers winter flounder sites zinc