Quantitative Biomonitoring in the Detroit River Using Elliptio complanata: Verification of Steady State Correction Factors and Temporal Trends of PCBs in Water Between 1998 and 2015
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- 作者：Ken G. Drouillard ; Mark Cook…
- 关键词：Biomonitors ; Toxicokinetics ; Polychlorinated biphenyls ; Persistent organic pollutants ; Water concentrations
- 刊名：Bulletin of Environmental Contamination and Toxicology
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：97
- 期：6
- 页码：757-762
- 全文大小：
- 刊物主题：Pollution, general; Environmental Health; Ecotoxicology; Soil Science & Conservation; Environmental Chemistry; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution;
- 出版者：Springer US
- ISSN：1432-0800
- 卷排序：97
文摘
Quantitative biomonitoring methods were applied to determine PCB concentrations in water from the Detroit River over a 17 year period. During 2014, mussels were deployed for and extended duration (21–364 days) and time dependent PCB concentrations were fit to a bioaccumulation model to estimate elimination coefficients (ktot) and provide site specific calibration of mussel toxicokinetics. The site specific calibration and different ktot versus KOW relationships from the literature were used to correct for steady state. ∑PCB concentrations in water were not significantly dependent on the ktot values used indicating that individual variation exceeds error contributed by steady state correction factors. The model was then applied to estimate ∑PCB concentrations in water using the long term (1998–2015) data. ∑PCBs concentrations in water exhibited a significant decreasing trend with a half life of 9.12 years resulting in a drop in yearly geometric mean residues from 198.1 to 43.6 pg/L.