PMID- 29713971 OWN - NLM STAT- MEDLINE DCOM- 20181227 LR - 20181227 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 25 IP - 19 DP - 2018 Jul TI - Selective bioaccumulation, biomagnification, and dissipation of hexachlorocyclohexane isomers in a freshwater food chain. PG - 18752-18761 LID - 10.1007/s11356-018-2044-9 [doi] AB - Hexachlorocyclohexane isomers (HCHs) are persistent organic pollutants (POPs), having potential risks to humans and ecosystem. This work evaluated the propensity of organisms to accumulate, eliminate, and transfer HCHs along the food chain (Tubifex tubifex and common carp (Cyprinus carpio)). The accumulation of HCHs from water by worms and carp was observed, and the concentrations increased with exposure time. After 8 days, the HCH concentrations in organisms remained stable. The accumulation factor (AF) values of HCHs in T. tubifex were higher than those in carp, indicating that the bioaccumulation abilities of HCHs in T. tubifex were higher than those in carp. The contaminated worms as a dietary source in the food chain led to significantly higher bioaccumulation in carp. The biomagnification factor (BMF) values of HCH isomers were all greater than 1. In the dissipation experiments, the elimination was fast and the half-lives were shorter than 2.5 days. The enantioselective accumulation and dissipation of alpha-HCH enantiomers were observed in worms and carp (food chain), and the enantiomeric differences should be taken into consideration in the study of contaminants risk assessment. The results on trophic transfer of HCHs in a freshwater food chain should be helpful for better understanding the fate, transport, and transfer of HCHs in freshwater environments. FAU - Di, Shanshan AU - Di S AD - Institute of Quality and Standard of Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China. AD - Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, China. AD - Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Hangzhou, 310021, China. FAU - Liu, Ruiquan AU - Liu R AD - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China. FAU - Chen, Li AU - Chen L AD - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China. AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing, 100193, People's Republic of China. FAU - Diao, Jinling AU - Diao J AD - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China. FAU - Zhou, Zhiqiang AU - Zhou Z AD - Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China. zqzhou@cau.edu.cn. AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing, 100193, People's Republic of China. zqzhou@cau.edu.cn. LA - eng GR - 2016YFD0200202/National Key Research and Development Program of China/ PT - Journal Article DEP - 20180430 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Water Pollutants, Chemical) RN - 319-84-6 (alpha-hexachlorocyclohexane) RN - 59NEE7PCAB (Hexachlorocyclohexane) SB - IM MH - Animals MH - Carps/*metabolism MH - *Food Chain MH - Fresh Water MH - Hexachlorocyclohexane/*metabolism MH - Isomerism MH - Oligochaeta/*metabolism MH - Water Pollutants, Chemical/*metabolism OTO - NOTNLM OT - Bioaccumulation OT - Carp OT - HCHs OT - Transfer OT - Tubifex tubifex EDAT- 2018/05/02 06:00 MHDA- 2018/12/28 06:00 CRDT- 2018/05/02 06:00 PHST- 2017/03/12 00:00 [received] PHST- 2018/04/16 00:00 [accepted] PHST- 2018/05/02 06:00 [pubmed] PHST- 2018/12/28 06:00 [medline] PHST- 2018/05/02 06:00 [entrez] AID - 10.1007/s11356-018-2044-9 [pii] AID - 10.1007/s11356-018-2044-9 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2018 Jul;25(19):18752-18761. doi: 10.1007/s11356-018-2044-9. Epub 2018 Apr 30.