PMID- 31926415 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20200212 LR - 20200212 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 710 DP - 2020 Mar 25 TI - Assessment of persistent organic pollutants (POPs) in sediments of the Eastern Indian Ocean. PG - 136335 LID - S0048-9697(19)36331-4 [pii] LID - 10.1016/j.scitotenv.2019.136335 [doi] AB - The concentrations of persistent organic pollutants (POPs) in sediments from the Eastern Indian Ocean were analyzed by GC-MS/MS to explore the status of contamination, distribution and their potential sources and risk. The average (+/-SD) concentrations of total polycyclic aromatic hydrocarbons ( summation operator(16)PAHs), polybrominated diphenyl ethers ( summation operator(10)PBDEs), dechlorane plus ( summation operator(2)DP), organochlorine pesticides ( summation operator(22)OCPs) and polychlorinated biphenyls ( summation operator(31)PCBs) in sediments were 79,900 +/- 31,400, 173 +/- 62, 42 +/- 24, 1051 +/- 305 and 147 +/- 24 pg g(-)(1) dw (or 11,200 +/- 7200, 28 +/- 26, 6 +/- 6, 168 +/- 121 and 24 +/- 17 ng g(-)(1) organic carbon), respectively. The concentrations of POPs in sediments were generally at low to median levels compared to those recorded in other ocean sediments. Composition analyses suggest that PAHs originate from both petrogenic and pyrogenic sources, while dichlorodiphenyltrichloroethane (DDT) mainly comes from technical-DDT, hexachlorocyclohexane (HCH) from lindane, and chlordane from fresh inputs. The risk assessments show that the targeted chemicals except for chlordane and naphthalene in sediments do not pose potential biological effects to the organisms in the Eastern Indian Ocean. The present study contributes to the very rare data on PAHs, PBDEs, DP, OCPs and PCBs in the vast deep-ocean and will deepen our knowledge of the fate of POPs in ocean environments. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Qiu, Yao-Wen AU - Qiu YW AD - State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China; Guangdong Key Laboratory of Ocean Remote Sensing, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China. Electronic address: yqiu@scsio.ac.cn. FAU - Wang, Dong-Xiao AU - Wang DX AD - State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; School of Marine Sciences, Sun Yat-sen University, Guangzhou 510275, China. FAU - Zhang, Gan AU - Zhang G AD - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China. LA - eng PT - Journal Article DEP - 20191228 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 SB - IM OTO - NOTNLM OT - Dechlorane plus (DP) OT - Indian Ocean OT - Organochlorine pesticides (OCPs) OT - Polybrominated diphenyl ethers (PBDEs) OT - Polychlorinated biphenyls (PCBs) OT - Polycyclic aromatic hydrocarbons (PAHs) COIS- Declaration of competing interest The authors have no conflict of interest. EDAT- 2020/01/12 06:00 MHDA- 2020/01/12 06:01 CRDT- 2020/01/12 06:00 PHST- 2019/10/18 00:00 [received] PHST- 2019/12/23 00:00 [revised] PHST- 2019/12/23 00:00 [accepted] PHST- 2020/01/12 06:00 [pubmed] PHST- 2020/01/12 06:01 [medline] PHST- 2020/01/12 06:00 [entrez] AID - S0048-9697(19)36331-4 [pii] AID - 10.1016/j.scitotenv.2019.136335 [doi] PST - ppublish SO - Sci Total Environ. 2020 Mar 25;710:136335. doi: 10.1016/j.scitotenv.2019.136335. Epub 2019 Dec 28.