Toxicokinetics of selected xenobiotics in Hexagenia limbata

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Journal of Great Lakes Research; (USA)

DOI:https://doi.org/10.1016/S0380-1330(88)71576-2· OSTI ID:5191766

Landrum, P F; Poore, R ^[1]

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1. National Oceanic and Atmospheric Administration, Ann Arbor, MI (USA)

Understanding the role of benthos in the fate and transport of contaminants requires understanding the toxicokinetics of those organisms for both waterborne and sediment-associated compounds. This effort focused on the toxicokinetics of Hexagenia limbata as an important component of the benthic community of the upper Great Lakes connecting channels. The accumulation and elimination of two polycyclic aromatic hydrocarbon congeners and a hexachlorobiphenyl isomer were followed over the course of a season in H. limbata collected from Lake St. Clair. Both the water uptake clearance and elimination rate constant increased with increasing temperature through the spring and summer. The elimination constants were relatively large. The uptake constant for sediment-associated compounds was essentially constant the two times it was measured and was large compared to sediment accumulation by Pontoporeia hoyi. Steady state model calculations indicate that the amount of compound in H. limbata should decline as temperature increases. The BCF values on a lipid content normalized basis remain relatively constant for both PAHs and show some change with season for hexachlorobiphenyl. Based on the best estimates of environmental concentration of the contaminants studied in both sediment and water, the model suggests that H. limbata should obtain greater than 90% of its contaminant body burden from the sediment-associated pollutants.

• OSTI ID: 5191766
• Journal Information: Journal of Great Lakes Research; (USA), Journal Name: Journal of Great Lakes Research; (USA) Vol. 14:4; ISSN JGLRD; ISSN 0380-1330
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
AROMATICS
ARTHROPODS
BENTHOS
BIOLOGICAL INDICATORS
CHLORINATED AROMATIC HYDROCARBONS
CONTAMINATION
ECOLOGICAL CONCENTRATION
EPHEMEROPTERA
GREAT LAKES
HALOGENATED AROMATIC HYDROCARBONS
HYDROCARBONS
INSECTS
INVERTEBRATES
LAKES
LARVAE
MATHEMATICAL MODELS
MONITORING
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
POLLUTION
POLYCYCLIC AROMATIC HYDROCARBONS
SEASONAL VARIATIONS
SEDIMENTS
SENSITIVITY
SURFACE WATERS
TOXICITY
VARIATIONS
WATER POLLUTION