Bioavailability of benzo(a)pyrene and dehydroabietic acid from a few lake waters containing varying dissolved organic carbon concentrations to Daphnia magna

Journal Article · Sun Jul 01 04:00:00 EDT 1990 · Bulletin of Environmental Contamination and Toxicology; (USA)

DOI:https://doi.org/10.1007/BF01701828· OSTI ID:6142597

Oikari, A; Kukkonen, J ^[1]

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1. Univ. of Joensuu (Finland)

Dissolved organic carbon (DOC) in natural waters consists of a great variety of organic molecules. Some of these molecules have been identified but most of them cannot be identified. This unidentified group of heterogeneous organic macromolecules is considered as humic substances. The role of humic substances in water chemistry and in aquatic toxicology is receiving increasing attention. The effects of DOC on the bioavailability of organic pollutants have been demonstrated in several studies. A decreased bioavailability has been demonstrated in most cases. Both the quantity and the quality of DOC are suggested determinants of this apparent ecotoxicological buffer of inland waters worldwide. In this study, the authors measured the bioaccumulation of benzo(a)pyrene (BaP) and dehydroabietic acid (DHAA) in Daphnia magna using a wide range of naturally occurring DOC levels. Another objective was to associate the reduced bioavailability with the chemical characteristics of water and DOC.

• OSTI ID: 6142597
• Journal Information: Bulletin of Environmental Contamination and Toxicology; (USA), Journal Name: Bulletin of Environmental Contamination and Toxicology; (USA) Vol. 45:1; ISSN 0007-4861; ISSN BECTA
• Country of Publication: United States
• Language: English

Related Subjects

550601 -- Medicine-- Unsealed Radionuclides in Diagnostics
560300* -- Chemicals Metabolism & Toxicology
62 RADIOLOGY AND NUCLEAR MEDICINE
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
AROMATICS
ARTHROPODS
BENZOPYRENE
BIOLOGICAL AVAILABILITY
BRANCHIOPODS
CARBON 14 COMPOUNDS
CONDENSED AROMATICS
CRUSTACEANS
DAPHNIA
FILTRATION
HYDROCARBONS
HYDROGEN COMPOUNDS
INVERTEBRATES
LABELLED COMPOUNDS
LAKES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC MATTER
OXYGEN COMPOUNDS
POLLUTION
SEPARATION PROCESSES
SURFACE WATERS
TRITIUM COMPOUNDS
UPTAKE
WATER
WATER POLLUTION