Identification of a novel PCB source through analysis of 209 PCB congeners by US EPA modified method 1668.
PCDD/Fs and PCBs in surface waters and effluent waste streams flowing into New York/New Jersey Harbor were sampled by large volume filtration and solid phase extraction (XAD-2). Passive hexane samplers were employed in sewer trackdown. Extraction media were analyzed for 2,3,7,8 substituted PCDD/Fs and all 209 PCB congeners. The non-Aroclor PCB congener, 3,3'-DiCB, was ubiquitous in the harbor and was found to be associated with pigment manufacture. Knowledge of inadvertent synthesis of non-Aroclor PCBs is not new but its magnitude and the generation of congeners with dioxin-like properties from this process is novel.
Litten
Simon
S
New York State Department of Environmental Conservation, Albany, NY 12233-3502, USA.
Fowler
Brian
B
Luszniak
Diane
D
D002623:Chemistry Techniques, Analytical / Q000379:methods; D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis*; D005374:Filtration; D009515:New Jersey; D009518:New York; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D004785:Environmental Pollutants; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls