Effect of sediment contact and uptake mechanisms on accumulation of three chlorinated hydrocarbons in the midge, Chironomus riparius

Journal Article · Tue May 01 00:00:00 EDT 1990 · Bulletin of Environmental Contamination and Toxicology; (USA)

DOI:https://doi.org/10.1007/BF01701804· OSTI ID:6614456

Fry, D M; Fisher, S W ^[1]

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1. Ohio State Univ., Columbus (USA)

Chlorinated hydrocarbons (CHCs) are major contaminants of bottom sediments in many freshwater systems. The behavior and availability of sediment-sorbed compounds arouse much controversy due to the potential impact these contaminants could have on the ecosystem if they were to get into the food chain. Benthic organisms are at great risk from sediment-sorbed contaminants since they inhabit bottom sediments. In this investigation, uptake of sediment-sorbed 5,5{prime},6-trichlorobiphenyl (PCB), p,p{prime}-DDE and PCP by the midge (Chironomus riparius) was examined under 3 conditions. Uptake from direct contact with contaminated sediment (sediment + water) was compared to uptake levels by the midge when it was screened from contaminated sediment contact (screened sediment) and to uptake in dead organisms exposed to contaminated sediment (passive).

• OSTI ID: 6614456
• Journal Information: Bulletin of Environmental Contamination and Toxicology; (USA), Journal Name: Bulletin of Environmental Contamination and Toxicology; (USA) Vol. 44:5; ISSN 0007-4861; ISSN BECTA
• Country of Publication: United States
• Language: English

Related Subjects

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 ACCUMULATION
BIOLOGICAL EFFECTS
CARBON 14 COMPOUNDS
CHLORINATED AROMATIC HYDROCARBONS
DIPTERA
HALOGENATED AROMATIC HYDROCARBONS
INSECTS
INVERTEBRATES
LABELLED COMPOUNDS
LARVAE
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
SEDIMENTS
UPTAKE