PCBs in Lake Superior, 1978-1992: Decreases in Water Concentrations Reflect Loss by Volatilization.

@article{Jeremiason1994PCBsIL,
  title={PCBs in Lake Superior, 1978-1992: Decreases in Water Concentrations Reflect Loss by Volatilization.},
  author={Jeff D Jeremiason and Keri C Hornbuckle and Stephen J Eisenreich},
  journal={Environmental science & technology},
  year={1994},
  volume={28 5},
  pages={903-14}
}
Polychlorinated biphenyl (PCB) water concentrations in Lake Superior from 1978 to 1992 have been compiled in order to determine long-term trends. Based on the concentrations of the same 25 PCB congeners from surface water samples collected between 1980 and 1992, CPCBs have decreased with a first-order rate constant of 0.20 yr l . The concentration of CPCBs in 1980 based on 82 congeners was 2.4 ng/L, by 1992 the concentration had decreased to 0.18 ng/L, indicating a loss of -26 500 kg of PCBs… CONTINUE READING
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