Historic Sources of Pollution in Portland Harbor, 1840-1970; Including the Fore River, the Back Cove and South Portland Watersheds
development, industry, lead, PCBs, heavy metals
development, industry, lead, PCBs, heavy metals
water quality, toxics, pollution, PCBs, heavy metals
water quality, toxics, pollution, PCBs, heavy metals
water quality, toxics, pollution, PCBs, heavy metals
water quality, toxics, pollution, PCBs, heavy metals
water quality, toxics, pollution, PCBs, heavy metals
sand, gravel, boulder, bedrock, muck
water quality, sediment, mercury, PAHs, mussels
watershed, impacts, sewage, contaminants, bacteria
toxics, pesticides, PAHs, PCBs, heavy metals