PMID- 35653019 OWN - NLM STAT- MEDLINE DCOM- 20221013 LR - 20221013 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 29 IP - 50 DP - 2022 Oct TI - Spatial and seasonal variation and sources of deposition fluxes of polycyclic aromatic hydrocarbons (PAHs) in Shanghai. PG - 75258-75270 LID - 10.1007/s11356-022-20348-1 [doi] AB - Spatial and temporal variations of polycyclic aromatic hydrocarbons (PAHs) deposition fluxes and sources may significantly facilitate risk evaluation and pollution control of super megacity in China. A study on PAHs of wet and dry deposition in Shanghai was conducted from January to December of 2019. Seventeen sampling sites located in four functional areas were set, including the Baoshan iron and steel industry area (BS), Jinshan petrochemical industry area (JS), city center (CC), and Chongming agricultural area (CM). A total of 15 PAHs were determined by gas chromatography-mass spectrometry (GC-MS, Agilent 7890A/5975C). PAHs atmospheric deposition flux in winter was highest (3.12 +/- 1.98 mug/(m(2).day), mostly attributed to local emissions accumulation under adverse meteorological diffusion conditions, as well as pollutants transport from northern China during heating season. PAHs deposition fluxes in industrial area (BS and JS) were 3.75 +/- 4.08 mug/(m(2).day) and 3.18 +/- 3.62 mug/(m(2).day) respectively, which were greater than those in CC and CM, accounting for 1.91 +/- 1.06 mug/(m(2).day) and 1.41 +/- 0.61 mug/(m(2).day) respectively. Proportional composition and isomer ratios of PAHs indicated that the PAHs deposition in winter and spring samples were more homogeneous, whereas those of summer and autumn seemed to be more variable and dispersed. Positive matrix factorization model were employed to identify the potential sources of PAHs in specific functional areas. A dominance of contribution was attributed to coal combustion (46%) at BS, petroleum volatilization (48%) at JS, biomass burning (55%) at CM, and vehicle emission (49%) at CC. This study highlighted that local urbanization and industrialization have a significant contribution to PAHs deposition to specific functional regions in Shanghai. CI - (c) 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Wu, Jian AU - Wu J AD - Shanghai Academy of Environmental Sciences, Shanghai, 200233, China. FAU - Sha, Chenyan AU - Sha C AD - Shanghai Academy of Environmental Sciences, Shanghai, 200233, China. FAU - Li, Dayan AU - Li D AD - Shanghai Academy of Environmental Sciences, Shanghai, 200233, China. FAU - Shen, Cheng AU - Shen C AD - Shanghai Academy of Environmental Sciences, Shanghai, 200233, China. FAU - Tang, Hao AU - Tang H AD - Shanghai Academy of Environmental Sciences, Shanghai, 200233, China. FAU - Huang, Shenfa AU - Huang S AD - Shanghai Academy of Environmental Sciences, Shanghai, 200233, China. saeshuangsf67@163.com. LA - eng GR - 19ZR1444100/Natural Science Foundation of Shanghai/ PT - Journal Article DEP - 20220602 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Air Pollutants) RN - 0 (Coal) RN - 0 (Particulate Matter) RN - 0 (Petroleum) RN - 0 (Polycyclic Aromatic Hydrocarbons) RN - 0 (Vehicle Emissions) RN - 12597-69-2 (Steel) RN - E1UOL152H7 (Iron) SB - IM MH - *Air Pollutants/analysis MH - China MH - Coal/analysis MH - Environmental Monitoring/methods MH - Iron/analysis MH - Particulate Matter/analysis MH - *Petroleum/analysis MH - *Polycyclic Aromatic Hydrocarbons/analysis MH - Seasons MH - Steel/analysis MH - Vehicle Emissions/analysis OTO - NOTNLM OT - PAHs OT - Shanghai OT - Source identification OT - Spatial and temporal distribution EDAT- 2022/06/03 06:00 MHDA- 2022/10/14 06:00 CRDT- 2022/06/02 11:18 PHST- 2021/11/08 00:00 [received] PHST- 2022/04/15 00:00 [accepted] PHST- 2022/06/03 06:00 [pubmed] PHST- 2022/10/14 06:00 [medline] PHST- 2022/06/02 11:18 [entrez] AID - 10.1007/s11356-022-20348-1 [pii] AID - 10.1007/s11356-022-20348-1 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2022 Oct;29(50):75258-75270. doi: 10.1007/s11356-022-20348-1. Epub 2022 Jun 2.