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Location of industries from 1888 to 1939
By the early 1990s textile mills and other industries had been built on the shores of the upper harbor. These industries were the most likely source of the contaminants found in upper harbor sediments (see sediment core profiles, Fig 18). Aerovox Corporation (yellow triangle on map) moved into one of the empty mill buildings in 1939. See Fig. 20 for PCB concentrations in the sediment cores. The shoreline used for this figure was taken from a 1919 map (Commission on Waterways and Public Lands of Massachusetts, New Bedford Harbor).
