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Uptake, bioavailability and elimination of hydrophobic compounds in earthworms ( Eisenia andrei ) in field‐contaminated soil
Author(s) -
Belfroid Angelique,
van den Berg Martin,
Seinen Willem,
Hermens Joop,
van Gestel Kees
Publication year - 1995
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620140408
Subject(s) - bioavailability , environmental chemistry , eisenia andrei , chemistry , biotransformation , chlorobenzene , soil contamination , hexachlorobenzene , earthworm , biota , contamination , toxicokinetics , pesticide , pollutant , toxicity , ecology , biology , biochemistry , organic chemistry , bioinformatics , enzyme , catalysis
Uptake, accumulation, and elimination of hydrophobic organic chemicals in earthworms ( Eisenia andrei ) exposed to field‐contaminated Volgermeerpolder soil was studied Earthworms were able to take up chlorobenzenes and polychlorobiphenyls (PCBs), but body burdens did not exceed concentrations measured in the soil For the chlorobenzenes, steady state concentrations in the worms and biota to‐soil accumulation factor (BSAF) values were much smaller than expected based on earlier experiments, suggesting a decreased bioavailability in the Volgermeerpolder soil Comparison of the PCB accumulation pattern in worms to the pattern in soil showed that biotransformation of the studied PCBs is of minor importance in this species Elimination of all chemicals studied was monophasic, with the exception of hexachlorobenzene, which showed a biphasic elimination The elimination half life for the initial fast phase of this compound is comparable to the elimination measured in previous studies Elimination rate constants decreased with increasing log K ow