PCBs from Building Materials and Other Sources in the Urban Environment

There has been a growing awareness that PCBs can be found in open applications such paints, and elastic sealants used in buildings, concrete aprons at airfields, and even city streets. Most of the attention has been on facilities constructed between 1950 and 1977, however there is limited evidence that this open use may extend into the late 1980’s. There is increasing concern about the continued manufacture and distribution of PCB containing products and some of the unexpected pathways of transport and deposition. This presentation will present information about the challenges of finding and controlling sources of PCBs affecting the Duwamish River