PMID- 28314123 OWN - NLM STAT- MEDLINE DCOM- 20170524 LR - 20181202 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 178 DP - 2017 Jul TI - Which persistent organic pollutants in the rivers of the Bohai Region of China represent the greatest risk to the local ecosystem? PG - 11-18 LID - S0045-6535(17)30326-0 [pii] LID - 10.1016/j.chemosphere.2017.02.137 [doi] AB - Freshwater aquatic organisms can be exposed to hundreds of persistent organic pollutants (POPs) discharged by natural and anthropogenic activities. Given our limited resources it is necessary to identify, from the existing evidence, which is the greatest threat so that control measures can be targeted wisely. The focus of this study was to rank POPs according to the relative risk they represent for aquatic organisms in rivers in the Bohai Region, China. A list of 14 POPs was compiled based on the available data on their presence in these rivers and ecotoxicological data. Those that were widely detected were benzo[a]pyrene, p,p'-DDE, p,p'-DDT, endrin, fluoranthene, heptachlor, hexabromocyclododecane, hexachlorobenzene, alpha-hexachlorocyclohexane, gamma-hexachlorocyclohexane, naphthalene, perfluorooctanoic acid, perfluorooctane sulfonate and phenanthrene. Effect concentrations were compiled for Chinese relevant and standard test species and compared with river aqueous concentrations. Only bed-sediment concentrations were available so water levels were calculated based on the known local sediment organic carbon concentration and the K(oc). The POPs were ranked on the ratio between the median river and median effect concentrations. Of the POPs studied, fluoranthene was ranked as the highest threat, followed by phenanthrene, naphthalene and p,p'-DDE. The risk from p,p'-DDE may be magnified due to being highly bioaccumulative. However, the greatest overlap between river concentrations and effect levels was for lindane. Overall, fish was the most sensitive species group to the risks from POPs. Hotspots with the highest concentrations and hence risk were mainly associated with watercourses draining in Tianjin, the biggest city in the Bohai Region. CI - Copyright (c) 2017 Elsevier Ltd. All rights reserved. FAU - Zhang, Yueqing AU - Zhang Y AD - State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China. FAU - Johnson, Andrew C AU - Johnson AC AD - Centre for Ecology & Hydrology, Maclean Building, Crowmarsh Gifford Wallingford, Oxon, OX 10 8BB, UK. FAU - Su, Chao AU - Su C AD - State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China. FAU - Zhang, Meng AU - Zhang M AD - State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China. FAU - Jurgens, Monika D AU - Jurgens MD AD - Centre for Ecology & Hydrology, Maclean Building, Crowmarsh Gifford Wallingford, Oxon, OX 10 8BB, UK. FAU - Shi, Yajuan AU - Shi Y AD - State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Lu, Yonglong AU - Lu Y AD - State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address: yllu@rcees.ac.cn. LA - eng PT - Journal Article DEP - 20170228 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Organic Chemicals) RN - 0 (Water Pollutants, Chemical) RN - 59NEE7PCAB (Hexachlorocyclohexane) SB - IM MH - Animals MH - China MH - *Ecosystem MH - Environmental Monitoring/*methods MH - Fishes MH - Hexachlorocyclohexane/analysis MH - Organic Chemicals/analysis MH - Rivers/*chemistry MH - Water Pollutants, Chemical/*analysis OTO - NOTNLM OT - Bohai Region OT - Ecological risk OT - Fluoranthene OT - POPs OT - Risk ranking EDAT- 2017/03/18 06:00 MHDA- 2017/05/26 06:00 CRDT- 2017/03/18 06:00 PHST- 2016/11/23 00:00 [received] PHST- 2017/02/16 00:00 [revised] PHST- 2017/02/26 00:00 [accepted] PHST- 2017/03/18 06:00 [pubmed] PHST- 2017/05/26 06:00 [medline] PHST- 2017/03/18 06:00 [entrez] AID - S0045-6535(17)30326-0 [pii] AID - 10.1016/j.chemosphere.2017.02.137 [doi] PST - ppublish SO - Chemosphere. 2017 Jul;178:11-18. doi: 10.1016/j.chemosphere.2017.02.137. Epub 2017 Feb 28.