title: Ecological risk assessment for mink and short-tailed shrew exposed to PCBs, dioxins, and furans in the Housatonic River area.
abstract: A probabilistic risk assessment was conducted to characterize risks to a representative piscivorous mammal (mink, Mustela vison) and a representative carnivorous mammal (short-tailed shrew, Blarina brevicauda) exposed to PCBs, dioxins, and furans in the Housatonic River area downstream of the General Electric (GE) facility in Pittsfield, Massachusetts. Contaminant exposure was estimated using a probabilistic total daily intake model and parameterized using life history information of each species and concentrations of PCBs, dioxins, and furans in prey collected in the Housatonic River study area. The effects assessment preferentially relied on dose-response curves but defaulted to benchmarks or other estimates of effect when there were insufficient toxicity data. The risk characterization used a weight of evidence approach. Up to 3 lines of evidence were used to estimate risks to the selected mammal species: 1) probabilistic exposure and effects modeling, 2) field surveys, and 3) species-specific feeding or field studies. The weight of evidence assessment indicated a high risk for mink and an intermediate risk for short-tailed shrew.
authors.affiliation: Intrinsik Environmental Sciences, New Gloucester, Maine, USA.
authors.forename: Dwayne R J
authors.initials: DR
authors.lastname: Moore
authors.affiliation: Intrinsik Environmental Sciences, Ottawa, Ontario, Canada.
authors.forename: Roger L
authors.initials: RL
authors.lastname: Breton
authors.affiliation: Avatar Environmental, West Chester, Pennsylvania, USA.
authors.forename: Tod R
authors.initials: TR
authors.lastname: DeLong
authors.affiliation: Applied Biomathematics, Setauket, New York, USA.
authors.forename: Scott
authors.initials: S
authors.lastname: Ferson
authors.affiliation: Stantec, Topsham, Maine, USA.
authors.forename: John P
authors.initials: JP
authors.lastname: Lortie
authors.affiliation: Chemicals Evaluation Branch, Environment Canada, Gatineau, Quebec, Canada.
authors.forename: Drew B
authors.initials: DB
authors.lastname: MacDonald
authors.affiliation: Sleeman Hanley & DiNitto, Boston, Massachusetts, USA.
authors.forename: Richard
authors.initials: R
authors.lastname: McGrath
authors.affiliation: Conestoga-Rovers and Associates, Dallas, Texas, USA.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Pawlisz
authors.affiliation: US Environmental Protection Agency, New England Office, Boston, Massachusetts.
authors.forename: Susan C
authors.initials: SC
authors.lastname: Svirsky
authors.affiliation: Intrinsik Environmental Sciences, Ottawa, Ontario, Canada.
authors.forename: R Scott
authors.initials: RS
authors.lastname: Teed
authors.affiliation: Idea Matrix Consulting, Ottawa, Ontario, Canada.
authors.forename: Ryan P
authors.initials: RP
authors.lastname: Thompson
authors.affiliation: Intrinsik Environmental Sciences, Ottawa, Ontario, Canada.
authors.forename: Melissa
authors.initials: M
authors.lastname: Whitfield Aslund
mesh_terms: D000818:Animals; D004147:Dioxins / Q000506:poisoning*; D004781:Environmental Exposure / Q000009:adverse effects*; D004784:Environmental Monitoring / Q000379:methods; D004785:Environmental Pollutants / Q000506:poisoning*; D005663:Furans / Q000506:poisoning*; D008404:Massachusetts; D008907:Mink / Q000502:physiology*; D011078:Polychlorinated Biphenyls / Q000506:poisoning*; D012098:Reproduction / Q000502:physiology; D018570:Risk Assessment; D045483:Rivers; D012788:Shrews / Q000502:physiology*
chemical_list: D004147:Dioxins; D004785:Environmental Pollutants; D005663:Furans; D011078:Polychlorinated Biphenyls
keywords: Dioxins; Furans; Housatonic River; PCBs; Probabilistic Risk Assessment