Uptake, bioavailability and elimination of hydrophobic compounds in earthworms (Eisenia andrei) in field-contaminated soil.
Uptake, bioavailability and elimination of hydrophobic compounds in earthworms (Eisenia andrei) in field-contaminated soil.
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DOI：
10.1002/etc.5620140408
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发表时间：
1995-04
影响因子：
4.1
通讯作者：
A. Belfroid;M. van den Berg;W. Seinen;J. Hermens;Kees van Gestel
中科院分区：
文献类型：
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作者：
A. Belfroid;M. van den Berg;W. Seinen;J. Hermens;Kees van Gestel
研究了田间污染的Volgermeerpolder土壤中蚯蚓(Eisenia Andrei)对疏水性有机化合物的吸收、积累和清除。蚯蚓能够吸收氯苯和多氯联苯(PCBS)，但身体负荷没有超过土壤中测得的氯苯浓度，蠕虫中的稳态浓度和生物群对土壤的积累系数(BSAF)值远小于基于早期实验的预期，这表明Volgermeerpoder土壤中的生物有效性降低。与土壤中的PCBs积累模式比较表明，所研究的PCBS的生物转化在该物种中是次要的。除六氯苯、六氯苯外，其他化学物质的消除都是单相的。该化合物的初始快相消除半衰期与前人测得的消除半衰期相当，消除速率常数随对数Kow的增加而减小
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 Kow