Sitewide biological risk assessment Eielson Air Force Base, Alaska: Risks to terrestrial receptors from diverse contaminants
- Pacific Northwest Lab., Richland, WA (United States)
Eielson Air Force Base (AFB) is located southeast of Fairbanks, Alaska. Eielson AFB was listed by the US Environmental Protection Agency on the National Priorities List with a total of 64 potential terrestrial and aquatic source areas. Contaminants of concern include fuel and fuel components, pesticides, polychlorinated biphenyls (PCBs), and lead. As part of the remedial investigations of these sites, a biological risk assessment (BRA) was conducted to estimate the risk of ecological effects on terrestrial receptors posed by contaminants in the Eielson environment. There are 32 mammal species, 117 bird species, 17 fish species, and 1 amphibian species known to inhabit Eielson AFB and vicinity. The BRA screened source areas based on completed biological exposure pathways, selected receptors for analysis, estimated exposure of receptors to contaminants, and compared these exposures to known toxicological effects. Lower Garrison Slough and Flightline Pond posed a substantial risk for shrikes and goshawks. Ingestion of PCBs constituted the primary pathway/contaminant combination contributing to this risk. The effects of the various sources of uncertainty in the ingestion exposure calculations for these sites were evaluated in a probabilistic risk assessment using Monte Carlo methods. There was an 11% risk of reproductive effects from PCBs for goshawks feeding from Flightline Pond and a 25 % risk from lower Garrison Slough. There was an 81 % risk of reproductive effects from PCB exposure for shrikes feeding near lower Garrison Slough.
- OSTI ID:
- 225497
- Report Number(s):
- CONF-950917-; ISBN 0-7918-1219-7; TRN: IM9621%%427
- Resource Relation:
- Conference: 5. international conference on radioactive waste management and environmental remediation, Berlin (Germany), 3-9 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Fifth international conference on radioactive waste management and environmental remediation -- ICEM `95: Proceedings. Volume 2: Management of low-level waste and remediation of contaminated sites and facilities; Slate, S.; Baker, R.; Benda, G. [eds.]; PB: 911 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Superfund record of decision (EPA region 10): Eielson Air Force Base, Fairbanks-North Star Borough, AK, September 30, 1996
Eielson Air Force Base operable unit 2 and other areas record of decision