Concentrations of dissolved and particulate Polychlorinated Biphenyls in water from the Saginaw River, Michigan

Journal of Great Lakes Research
By: , and 

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Abstract

The Saginaw River receives water from a major drainage basin in the east-central portion of the lower peninsula of Michigan. Historically the river has been contaminated with polychlorinated biphenyls (PCBs) from several sources. The present study was conducted to determine the concentrations of PCBs in both the dissolved and particulate phases of water in the lower Saginaw River, as well as the relative contribution of PCBs from the lower portion of the river relative to more upstream locations. Water samples were collected in 1990–1991, during a range of discharge conditions. Suspended particulates were collected from water onto glass-fiber filters by use of a “Penta-plate” filtration apparatus. Filtered water was subsequently passed through XAD-2 macroreticular resin to collect the “dissolved” PCBs. Concentrations of PCBs in both phases were determined by congener specific gas chromatography with electron capture detection. Total concentrations of PCBs ranged from 11 to 31 ng/L. The concentrations of PCBs in the dissolved phase ranged from 1.9 to 16 ng/L. The ratio of total PCBs bound to suspended particulates, relative to dissolved PCBs, was 2:1 and remained fairly constant for discharges less than approximately 400 M3/sec. The loading of total PCBs to Saginaw Bay was estimated to be 225 kg/yr, of which approximately 60% was found to be contributed by the lower 8 km of the Saginaw River.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Concentrations of dissolved and particulate Polychlorinated Biphenyls in water from the Saginaw River, Michigan
Series title Journal of Great Lakes Research
DOI 10.1016/S0380-1330(95)71033-4
Volume 21
Issue 2
Year Published 1995
Language English
Publisher Elsevier
Contributing office(s) Columbia Environmental Research Center
Description 15 p.
First page 219
Last page 233
Country United States
State Michigan
Other Geospatial Saginaw River
Online Only (Y/N) N
Additional Online Files (Y/N) N
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