PMID- 29948679 OWN - NLM STAT- MEDLINE DCOM- 20190114 LR - 20211224 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 25 IP - 24 DP - 2018 Aug TI - Seasonal variation and source analysis of persistent organic pollutants in the atmosphere over the western Tibetan Plateau. PG - 24052-24063 LID - 10.1007/s11356-018-2221-x [doi] AB - Over the past few decades, the Tibetan Plateau (TP) region has become gradually contaminated by persistent organic pollutants (POPs). The picture regarding POPs is clear in the central and southern parts of the TP; however, few observational campaigns have focused on the western TP. To clarify the concentrations, seasonal trends and source regions of POPs in the western TP, a first study of POPs in Muztagh Ata (westerly region) and a long-term (5 years) monitoring program in Ngari (transect region influenced by both the Indian monsoon and westerly climate) were conducted. Except for hexachlorobenzene (HCB) and polychlorinated biphenyls (PCBs), relatively low POP levels were observed in the western TP. In Muztagh Ata, dichlorodiphenyltrichloroethanes (DDTs) showed higher concentrations in winter and lower ones in summer, whereas at Ngari, higher DDTs and hexachlorocyclohexanes (HCHs) concentrations were observed in summer as compared with winter. Source diagnosis indicated that Xinjiang and central Asia were the main source regions for POPs in Muztagh Ata and that westerly winds play a key role in transporting POPs from central Asia. No correlation was found between the height of the atmospheric boundary layer and the concentrations of POPs over the TP. FAU - Zhang, Jingyi AU - Zhang J AD - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China. AD - University of Chinese Academy of Sciences, Beijing, 100049, China. FAU - Wang, Xiaoping AU - Wang X AUID- ORCID: 0000-0001-7524-7540 AD - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China. wangxp@itpcas.ac.cn. AD - University of Chinese Academy of Sciences, Beijing, 100049, China. wangxp@itpcas.ac.cn. AD - CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100101, China. wangxp@itpcas.ac.cn. FAU - Gong, Ping AU - Gong P AD - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China. AD - CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100101, China. FAU - Wang, Chuanfei AU - Wang C AD - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China. AD - CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100101, China. FAU - Sun, Dianchao AU - Sun D AD - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China. AD - University of Chinese Academy of Sciences, Beijing, 100049, China. LA - eng GR - 41671480, 41571463/National Natural Science Foundation of China/ GR - 131C11KYSB20160061/International Partnership Program of the Chinese Academy of Sciences/ PT - Journal Article DEP - 20180608 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Air Pollutants) RN - 0 (Organic Chemicals) RN - 0 (Pesticides) RN - 4Z87H0LKUY (Hexachlorobenzene) RN - 59NEE7PCAB (Hexachlorocyclohexane) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Air Pollutants/*analysis MH - Atmosphere/analysis MH - Climate MH - Environmental Monitoring MH - Hexachlorobenzene/analysis MH - Hexachlorocyclohexane/analysis MH - Organic Chemicals/*analysis MH - Pesticides/analysis MH - Polychlorinated Biphenyls/analysis MH - Seasons MH - Tibet MH - Wind OTO - NOTNLM OT - Atmospheric transport OT - Persistent organic pollutants OT - Seasonality OT - Source regions OT - Westerly wind OT - Western Tibetan Plateau EDAT- 2018/06/28 06:00 MHDA- 2019/01/15 06:00 CRDT- 2018/06/28 06:00 PHST- 2018/01/16 00:00 [received] PHST- 2018/05/03 00:00 [accepted] PHST- 2018/06/28 06:00 [pubmed] PHST- 2019/01/15 06:00 [medline] PHST- 2018/06/28 06:00 [entrez] AID - 10.1007/s11356-018-2221-x [pii] AID - 10.1007/s11356-018-2221-x [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2018 Aug;25(24):24052-24063. doi: 10.1007/s11356-018-2221-x. Epub 2018 Jun 8.