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Main Title Drilling Fluids and the Arctic Tundra of Alaska: Assessing Contamination of Wetlands Habitat and the Toxicity to Aquatic Invertebrates and Fish (Journal Version).
Author Woodward, D. F. ; Snyder-Conn, E. ; Riley, R. G. ; Garland, T. R. ;
CORP Author National Fisheries Contaminant Research Center, Jackson, WY. Jackson Field Station. ;Battelle Pacific Northwest Labs., Richland, WA.;Corvallis Environmental Research Lab., OR.
Publisher c1988
Year Published 1988
Report Number EPA/600/J-88/246;
Stock Number PB89-145056
Additional Subjects Oil recovery ; Drilling fluids ; Tundra ; Environmental impacts ; Aquatic biology ; Invertebrates ; Contamination ; Toxicity ; Fishes ; Ecology ; Arctic regions ; Tables(Data) ; Trace elements ; Aromatic hydrocarbons ; Alkanes ; Ions ; Reprints ; Wetlands ; Aquatic ecosystems ; Daphnia Middendorffiana ; Daphnia magna
Library Call Number Additional Info Location Last
NTIS  PB89-145056 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 17p
Drilling for oil on the North Slope of Alaska results in the release of large volumes of used drilling fluids into arctic wetlands. These releases usually come from regulated discharges or seepage from reserve pits constructed to hold used drilling fluids. A study of five drill sites and their reserve pits showed an increase in common and trace elements and organic hydrocarbons in ponds near to and distant from reserve pits. Ions elevated in water were Ba, Cl, Cr, K, SO4 and Zn. Concentrations of Cu, Cr, Fe, Pb, and Si in sediments were higher in near and distant ponds than in control ponds. The predominant organics in drill site waters and sediments consisted of aromatic and paraffinic hydrocarbons characteristic of petroleum or a refined product of petroleum. In 96-hr exposures in the field, toxicity to Daphnia Middendorffiana was observed in water from all reserve pits, and from two of five near ponds, but not from distant ponds. In laboratory tests with Daphnia magna, growth and reproduction were reduced in dilutions of 2.5% drilling fluid (2.5 drilling fluid: 97.5 dilution water) from one reserve pit, and 25% drilling fluid from a second. (Copyright (c) 1988 Springer-Verlag N.Y. Inc.)