Author/Authors :
Dale R. Rushneck، نويسنده , , Andy Beliveau، نويسنده , , Brian Fowler، نويسنده , , M. Coreen Hamilton، نويسنده , , Dale Hoover، نويسنده , , Katharine Kaye، نويسنده , , Marlene Berg، نويسنده , , Terry Smith، نويسنده , , William A. Telliard، نويسنده , , Henry Roman، نويسنده , , Eric Ruder، نويسنده , , Liza Ryan، نويسنده ,
Abstract :
We have determined the congener compositions of nine commercial Aroclor products of polychlorinated biphenyls (PCBs) to the sub-part-per-million level using high-resolution gas chromatography combined with high-resolution mass spectrometry according to US Environmental Protection Agency (EPA) Method 1668A. These Aroclor composition data should allow improved characterization and risk assessment of PCB contamination at hazardous waste sites, particularly for dioxin-like PCB congeners. By combining the data on the concentrations of each dioxin-like congener with its World Health Organization toxicity equivalency factor, we have established dioxin toxic equivalent concentrations for each pure Aroclor product.
Keywords :
Polychlorinated biphenyl , High resolution mass spectrometry , Aroclor , PCB
