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Examining spatial patterns in polycyclic aromatic compounds measured in stream macroinvertebrates near a small subarctic oil and gas operation.
Korosi, J B; Eickmeyer, D C; Chin, K S; Palmer, M J; Kimpe, L E; Blais, J M.
Afiliación
  • Korosi JB; Department of Biology, University of Ottawa, 30 Marie Curie Pvt., Ottawa, ON, K1N 6N5, Canada. jennifer.korosi@gmail.com.
  • Eickmeyer DC; Department of Biology, University of Ottawa, 30 Marie Curie Pvt., Ottawa, ON, K1N 6N5, Canada.
  • Chin KS; Cumulative Impact Monitoring Program, Environment and Natural Resources, Government of the Northwest Territories, 5102 50th Avenue, Yellowknife, NT, X1A 3S8, Canada.
  • Palmer MJ; Cumulative Impact Monitoring Program, Environment and Natural Resources, Government of the Northwest Territories, 5102 50th Avenue, Yellowknife, NT, X1A 3S8, Canada.
  • Kimpe LE; Department of Biology, University of Ottawa, 30 Marie Curie Pvt., Ottawa, ON, K1N 6N5, Canada.
  • Blais JM; Department of Biology, University of Ottawa, 30 Marie Curie Pvt., Ottawa, ON, K1N 6N5, Canada.
Environ Monit Assess ; 188(3): 189, 2016 Mar.
Article en En | MEDLINE | ID: mdl-26911593
The Cameron River runs through a small, remote petrochemical development in the Cameron Hills (Northwest Territories, Canada). In order to evaluate the exposure of aquatic biota to contaminants from oil and gas activities, we measured polycyclic aromatic compounds (PACs) in macroinvertebrates collected from sites and tributaries along the Cameron River, including upstream and downstream of the development, and sites located near drilled wells (developed). Macroinvertebrate tissue PAC burdens ranged from 0.2-2.8 µg g(-1) lipid for unsubstituted compounds, and from 4.2-63.2 µg g(-1) lipid for alkylated compounds, relatively low compared to similar studies from more industrialized regions in North America. There was no significant difference in tissue PAC burdens between upstream, downstream, or developed sites (p = 0.12), although alkyl PACs in five out of seven developed sites were higher than the regional average. Petrogenic PACs were dominant in most samples, including alkyl fluorines, alkyl phenanthrene/anthracenes, and alkyl dibenzothiophenes. Minimal changes in PAC composition in macroinvertebrate tissues were detected along the Cameron River, with the exception of the two sites furthest downstream that had high concentrations of C3-C4 naphthalene. Overall, our results suggest that oil and gas development in the Cameron Hills has not resulted in substantial increases in PAC bioaccumulation in stream macroinvertebrates, although the potential that alkyl naphthalenes are being transported downstream from the development warrants further attention.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Hidrocarburos Policíclicos Aromáticos / Monitoreo del Ambiente / Yacimiento de Petróleo y Gas / Invertebrados Límite: Animals País/Región como asunto: America do norte Idioma: En Revista: Environ Monit Assess Asunto de la revista: SAUDE AMBIENTAL Año: 2016 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Hidrocarburos Policíclicos Aromáticos / Monitoreo del Ambiente / Yacimiento de Petróleo y Gas / Invertebrados Límite: Animals País/Región como asunto: America do norte Idioma: En Revista: Environ Monit Assess Asunto de la revista: SAUDE AMBIENTAL Año: 2016 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Países Bajos