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Influence of feeding and earthworm density on compound bioaccumulation in earthworms Eisenia andrei
K. Šmídová, J. Šerá, L. Bielská, J. Hofman,
Language English Country England, Great Britain
Document type Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- DDT pharmacokinetics MeSH
- Phenanthrenes pharmacokinetics MeSH
- Hexachlorocyclohexane pharmacokinetics MeSH
- Population Density MeSH
- Soil Pollutants pharmacokinetics MeSH
- Oligochaeta metabolism physiology MeSH
- Polychlorinated Biphenyls pharmacokinetics MeSH
- Soil chemistry MeSH
- Pyrenes pharmacokinetics MeSH
- Feeding Behavior MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Earthworm density and feeding during exposure to contaminated soil have been used inconsistently in bioaccumulation studies, which may lead to possible errors in risk assessment and modeling. Hydrophobic organic pollutants with a wide range of environmental properties (phenanthrene, pyrene, lindane, p,p'-DDT, and PCB 153) were used to study the effect of different earthworm densities in combination with the presence or absence of feeding on bioaccumulation factors (BAFs). Similar BAFs were found at various soil-to-worm ratios, with the exception of phenanthrene. We recommend using at least 15 gsoil dw per earthworm. The absence of feeding doubled the BAFs and, thus, using no food ration can be considered as "the worst case scenario". Whenever food is to be applied (i.e. to ensure the validity of the test in earthworm mass loss), we suggest feeding depending on the organic carbon content of the studied soil.
FT TBU Dep of Environmental Protection Engineering 76001 Zlín Czech Republic
Masaryk University Faculty of Science RECETOX 62500 Brno Czech Republic
References provided by Crossref.org
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