Air-water PCB fluxes from southwestern Lake Michigan revisited.

ABSTRACT: From simultaneous air and water polychlorinated biphenyl (PCB) measurements collected in September 2010, we re-evaluated the direction and magnitude of net air-water exchange of PCBs in southwest Lake Michigan and compared them with estimations made using similar approaches 15 years prior. Air and water samples were collected during a research expedition on Lake Michigan at 5 km off the coast of Chicago, with prevailing winds from the southwest of our location. Gas-phase ΣPCB concentrations ranged from 190 to 1100 pg m^-3 with a median of 770 pg m^-3, which is similar to the concentrations measured in the City of Chicago at the same time and similar to concentrations measured in this part of the lake over the last 20 years. Water dissolved-phase ΣPCB concentrations rang

SUBMITTER: Boesen AC 

PROVIDER: S-EPMC6834886 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature