Toxicity of weathered coal tar for shortnose sturgeon (Acipenser brevirostrum) embryos and larvae.
Identifieur interne : 000876 ( Ncbi/Checkpoint ); précédent : 000875; suivant : 000877Toxicity of weathered coal tar for shortnose sturgeon (Acipenser brevirostrum) embryos and larvae.
Auteurs : R M Kocan [États-Unis] ; M B Matta ; S M SalazarSource :
- Archives of environmental contamination and toxicology [ 0090-4341 ] ; 1996.
English descriptors
- KwdEn :
- Animals, Coal Tar (metabolism), Coal Tar (toxicity), Embryo, Nonmammalian (drug effects), Embryonic Development, Fishes (embryology), Geologic Sediments, Hydrogen-Ion Concentration, Keratolytic Agents (metabolism), Keratolytic Agents (toxicity), Larva (drug effects), Polycyclic Aromatic Hydrocarbons (toxicity), Temperature, Water Pollutants, Chemical (metabolism), Water Pollutants, Chemical (toxicity), Weather.
- MESH :
- chemical , metabolism : Coal Tar, Keratolytic Agents, Water Pollutants, Chemical.
- chemical , toxicity : Coal Tar, Keratolytic Agents, Polycyclic Aromatic Hydrocarbons, Water Pollutants, Chemical.
- drug effects : Embryo, Nonmammalian, Larva.
- embryology : Fishes.
- Animals, Embryonic Development, Geologic Sediments, Hydrogen-Ion Concentration, Temperature, Weather.
Abstract
Weathered coal tar collected from the Connecticut River near Holyoke, Massachusetts, was toxic to shortnose sturgeon embryos and larvae in whole sediment flow-through and elutriate static-renewal laboratory exposures. Sterile laboratory sand and clean Connecticut River sand, collected upstream from the coal tar deposits, produced no significant difference in toxicity to sturgeon embryos-larvae, while coal tar-contaminated sediment produced over 95% embryo-larval mortality. Hydrocarbon transfer and subsequent toxicity appeared to be via direct contact of the embryos with contaminated sediment, rather than via exposure to soluble hydrocarbons. This conclusion was supported by exposure of embryos and larvae to elutriates (e.g., water soluble extract) of coal-tar sediments, that resulted in embryo and larval mortality at low molecular weight PAH concentrations-0.47 mg/L, higher than would occur naturally. No decrease in petroleum hydrocarbon concentration was observed in sediments exposed to flowing water for 14 d, supporting the contention that soluble hydrocarbons were not responsible for the observed toxicity in whole sediment exposures under the conditions employed in this study.
PubMed: 8785011
Affiliations:
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pubmed:8785011Le document en format XML
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<author><name sortKey="Matta, M B" sort="Matta, M B" uniqKey="Matta M" first="M B" last="Matta">M B Matta</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Toxicity of weathered coal tar for shortnose sturgeon (Acipenser brevirostrum) embryos and larvae.</title>
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<affiliation wicri:level="4"><nlm:affiliation>School of Fisheries, University of Washington, Box 355100, Seattle, Washington 98195, USA.</nlm:affiliation>
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<author><name sortKey="Matta, M B" sort="Matta, M B" uniqKey="Matta M" first="M B" last="Matta">M B Matta</name>
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<series><title level="j">Archives of environmental contamination and toxicology</title>
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<term>Embryonic Development</term>
<term>Fishes (embryology)</term>
<term>Geologic Sediments</term>
<term>Hydrogen-Ion Concentration</term>
<term>Keratolytic Agents (metabolism)</term>
<term>Keratolytic Agents (toxicity)</term>
<term>Larva (drug effects)</term>
<term>Polycyclic Aromatic Hydrocarbons (toxicity)</term>
<term>Temperature</term>
<term>Water Pollutants, Chemical (metabolism)</term>
<term>Water Pollutants, Chemical (toxicity)</term>
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<term>Water Pollutants, Chemical</term>
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<keywords scheme="MESH" type="chemical" qualifier="toxicity" xml:lang="en"><term>Coal Tar</term>
<term>Keratolytic Agents</term>
<term>Polycyclic Aromatic Hydrocarbons</term>
<term>Water Pollutants, Chemical</term>
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<term>Embryonic Development</term>
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<front><div type="abstract" xml:lang="en">Weathered coal tar collected from the Connecticut River near Holyoke, Massachusetts, was toxic to shortnose sturgeon embryos and larvae in whole sediment flow-through and elutriate static-renewal laboratory exposures. Sterile laboratory sand and clean Connecticut River sand, collected upstream from the coal tar deposits, produced no significant difference in toxicity to sturgeon embryos-larvae, while coal tar-contaminated sediment produced over 95% embryo-larval mortality. Hydrocarbon transfer and subsequent toxicity appeared to be via direct contact of the embryos with contaminated sediment, rather than via exposure to soluble hydrocarbons. This conclusion was supported by exposure of embryos and larvae to elutriates (e.g., water soluble extract) of coal-tar sediments, that resulted in embryo and larval mortality at low molecular weight PAH concentrations-0.47 mg/L, higher than would occur naturally. No decrease in petroleum hydrocarbon concentration was observed in sediments exposed to flowing water for 14 d, supporting the contention that soluble hydrocarbons were not responsible for the observed toxicity in whole sediment exposures under the conditions employed in this study.</div>
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<country name="États-Unis"><region name="Washington (État)"><name sortKey="Kocan, R M" sort="Kocan, R M" uniqKey="Kocan R" first="R M" last="Kocan">R M Kocan</name>
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