Accumulation of polybrominated diphenyl ethers, hexabromobenzene, and 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane in earthworm (Eisenia fetida). Effects of soil type and aging. Nyholm, J. R., Asamoah, R. K., van der Wal, L., Danielsson, C., & Andersson, P. L Environmental science & technology, 44(23):9189–94, December, 2010.
Accumulation of polybrominated diphenyl ethers, hexabromobenzene, and 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane in earthworm (Eisenia fetida). Effects of soil type and aging. [link]Paper  doi  abstract   bibtex   
In the present study the accumulation potentials in earthworms (Eisenia fetida) of selected brominated flame retardants (BFRs) were investigated. The tested BFRs, including polybrominated diphenyl ethers (PBDEs), hexabromobenzene (HBB), and 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (TBECH), were found to be bioavailable to Eisenia fetida, and they accumulated in the earthworms. To our knowledge, this is the first published study to address the bioaccumulation potential of TBECH in terrestrial biota. Aging the soil resulted in decreased accumulation of TBECH, HBB, and PBDEs with six or less bromine atoms. However, no effect of soil aging was seen for BDEs 183 or 209, possibly due to their low mobility in soil. The use of different soils (artificial OECD soil and two natural Swedish soils) also affected the degree of accumulation in the worms. The results indicate that use of the generally accepted standard OECD soil may overestimate accumulation of organic contaminants by earthworms, due to high bioavailability of the contaminants and/or weight loss of the worms in it. Further, the accumulation of selected PBDEs and HBB was compared to the accumulation of their chlorinated analogues. Brominated compounds accumulated to the same or a lesser extent than their chlorinated counterparts.
@article{nyholm_accumulation_2010,
	title = {Accumulation of polybrominated diphenyl ethers, hexabromobenzene, and 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane in earthworm ({Eisenia} fetida). {Effects} of soil type and aging.},
	volume = {44},
	issn = {1520-5851},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/21028802},
	doi = {10.1021/es1023288},
	abstract = {In the present study the accumulation potentials in earthworms (Eisenia fetida) of selected brominated flame retardants (BFRs) were investigated. The tested BFRs, including polybrominated diphenyl ethers (PBDEs), hexabromobenzene (HBB), and 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (TBECH), were found to be bioavailable to Eisenia fetida, and they accumulated in the earthworms. To our knowledge, this is the first published study to address the bioaccumulation potential of TBECH in terrestrial biota. Aging the soil resulted in decreased accumulation of TBECH, HBB, and PBDEs with six or less bromine atoms. However, no effect of soil aging was seen for BDEs 183 or 209, possibly due to their low mobility in soil. The use of different soils (artificial OECD soil and two natural Swedish soils) also affected the degree of accumulation in the worms. The results indicate that use of the generally accepted standard OECD soil may overestimate accumulation of organic contaminants by earthworms, due to high bioavailability of the contaminants and/or weight loss of the worms in it. Further, the accumulation of selected PBDEs and HBB was compared to the accumulation of their chlorinated analogues. Brominated compounds accumulated to the same or a lesser extent than their chlorinated counterparts.},
	number = {23},
	journal = {Environmental science \& technology},
	author = {Nyholm, Jenny Rattfelt and Asamoah, Robert Kumah and van der Wal, Leon and Danielsson, Conny and Andersson, Patrik L},
	month = dec,
	year = {2010},
	pmid = {21028802},
	keywords = {Animals, Cyclohexanes, Cyclohexanes: metabolism, Environmental Monitoring, Flame Retardants: metabolism, Flame retardants, Halogenated Diphenyl Ethers, Halogenated Diphenyl Ethers: metabolism, Oligochaeta, Oligochaeta: metabolism, Soil, Soil Pollutants, Soil Pollutants: metabolism, Soil: chemistry},
	pages = {9189--94},
}

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