PMID- 36764260 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20230228 LR - 20230228 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 448 DP - 2023 Apr 15 TI - Source identification of PCBs in Antarctic air by compound-specific isotope analysis of chlorine (CSIA-Cl) using HRGC/HRMS. PG - 130907 LID - S0304-3894(23)00189-9 [pii] LID - 10.1016/j.jhazmat.2023.130907 [doi] AB - Occurrence of persistent organic pollutants (POPs) in the Polar Regions has received great concern in the past several decades due to their long-term adverse effect on biological health in such a fragile environment. However, there is still argument over their source and fate in these pristine areas. Here we attempted to use a novel approach (compound-specific isotope analysis of chlorine, CSIA-Cl) to identify the source of POPs in Antarctic air by comparison with the source area. The results showed that the relative isotope-ratio variation of Cl (delta(37)Cl') values showed a large variation from - 137 to 9.04 per thousand in the gas-phase samples, and a significantly negative correlation (p < 0.01) was obtained against the logKoa values of PCBs. There were no significant correlations (p > 0.05) observed between the delta(37)Cl' values and meteorological parameters except for PCB-28 which showed temperature dependence. By contrast, the delta(37)Cl' values in the urban (Beijing) air ranged from - 12.8 to 2.03 per thousand. The larger variation of delta(37)Cl' in Antarctic air indicated evidently influence of long-range atmospheric transport (LRAT) on isotopologue fractionation of PCBs. This study may shed light on the application of CSIA-Cl for source identification of chlorinated POPs on a large scale. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Wang, Pu AU - Wang P AD - Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China. FAU - Meng, Wenying AU - Meng W AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Zhang, Weiwei AU - Zhang W AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Fu, Min AU - Fu M AD - Key Laboratory of Research on Marine Hazards Forecasting, National Marine Environmental Forecasting Center, Beijing 100081, China. FAU - Li, Yingming AU - Li Y AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Yang, Ruiqiang AU - Yang R AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Zhang, Qinghua AU - Zhang Q AD - Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: qhzhang@rcees.ac.cn. FAU - Jiang, Guibin AU - Jiang G AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China. LA - eng PT - Journal Article DEP - 20230129 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 SB - IM OTO - NOTNLM OT - Antarctic air OT - CSIA-Cl OT - LRAT OT - PCBs OT - Urban air COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/02/11 06:00 MHDA- 2023/02/11 06:01 CRDT- 2023/02/10 18:21 PHST- 2022/12/01 00:00 [received] PHST- 2023/01/27 00:00 [revised] PHST- 2023/01/28 00:00 [accepted] PHST- 2023/02/11 06:00 [pubmed] PHST- 2023/02/11 06:01 [medline] PHST- 2023/02/10 18:21 [entrez] AID - S0304-3894(23)00189-9 [pii] AID - 10.1016/j.jhazmat.2023.130907 [doi] PST - ppublish SO - J Hazard Mater. 2023 Apr 15;448:130907. doi: 10.1016/j.jhazmat.2023.130907. Epub 2023 Jan 29.