title: 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.
abstract: 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 ktotversus KOWrelationships from the literature were used to correct for steady state. ∑PCB concentrations in water were not significantly dependent on the ktotvalues 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.
authors.affiliation: Great Lakes Institute for Environmental Research (GLIER), University of Windsor, 401 Sunset Ave., Windsor, ON, N9B3P4, Canada. kgd@uwindsor.ca.
authors.forename: Ken G
authors.identifier: http://orcid.org/0000-0002-8006-8229
authors.initials: KG
authors.lastname: Drouillard
authors.affiliation: Great Lakes Institute for Environmental Research (GLIER), University of Windsor, 401 Sunset Ave., Windsor, ON, N9B3P4, Canada.
authors.forename: Mark
authors.initials: M
authors.lastname: Cook
authors.affiliation: Great Lakes Institute for Environmental Research (GLIER), University of Windsor, 401 Sunset Ave., Windsor, ON, N9B3P4, Canada.
authors.forename: Todd A
authors.initials: TA
authors.lastname: Leadley
authors.affiliation: Public Works Pollution Control Department, City of Windsor, 4155 Ojibway Parkway, Windsor, ON, N9C 4A5, Canada.
authors.forename: Paul
authors.initials: P
authors.lastname: Drca
authors.affiliation: Ontario Ministry of Environment and Climate Change, 733 Exeter Road, London, ON, N6E 1L3, Canada.
authors.forename: Ted
authors.initials: T
authors.lastname: Briggs
authors.affiliation: Great Lakes Institute for Environmental Research (GLIER), University of Windsor, 401 Sunset Ave., Windsor, ON, N9B3P4, Canada.
authors.forename: G Douglas
authors.initials: GD
authors.lastname: Haffner
mesh_terms: D000818:Animals; D049872:Bivalvia; D004784:Environmental Monitoring / Q000379:methods*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D045483:Rivers / Q000737:chemistry; D066007:Toxicokinetics; D049876:Unionidae; D014867:Water / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical; D014867:Water; D011078:Polychlorinated Biphenyls
keywords: Biomonitors; Persistent organic pollutants; Polychlorinated biphenyls; Toxicokinetics; Water concentrations