Document Type
Article
Peer Reviewed
1
Publication Date
2003
Journal/Book/Conference Title
Ambio
DOI of Published Version
10.1579/0044-7447(2003)032[0406:TIOAUR]2.0.CO;2
Start Page
406
End Page
411
Abstract
A predictive model for gas-phase PCBs and trans-nonachlor over Lake Michigan has been constructed and the resulting data examined for trends. In this paper, we describe the model results to show how the magnitude and variability of a plume of contaminants from the Chicago area contributes to a highly variable region of net contaminant deposition over the entire lake. For the whole lake, gross annual deposition of PCBs is 3200 kg, although the net annual gas exchange is not significantly different from zero. The data-driven model illustrates that on a daily basis, the net exchange of persistent organic pollutants (POPs) can change from net deposition to net volatilization depending on the area of plume impact. These findings suggest that i) control of urban areas can accelerate the rate of volatilization from lakes; and ii) release of POPs from urban areas is largely a result of volatilization processes.
Journal Article Version
Version of Record
Published Article/Book Citation
Ambio, 32:6 (2003), pp. 406-411.
Rights
Copyright © 2003 Allen Press for the Royal Swedish Academy of Sciences. Posted by permission of the publisher.
URL
https://ir.uiowa.edu/cee_pubs/3