We report the levels of airborne individual PCB concentrations of gas phases from the City of Chicago in 2009. One hundred and seventy-one individual or coeluting congener PCBs are reported. Field blank masses for all 171 individual congeners for gas (XAD-2) phases are included here. The XAD-2 blank samples were not exposed or opened to the air at any time during the sampling period.
- Individual PCB congener mass in XAD-2 blank sample* Quantification and determination of individual PCB congeners using GC-MS/MS