caa a22 4500 445301112 CHVBK 20180317142558.0 cr unu---uuuuu 170323e20101101xx s 000 0 eng 10.1007/s11430-010-4017-9 doi (NATIONALLICENCE)springer-10.1007/s11430-010-4017-9 Sulfur isotopic composition and source identification of atmospheric environment in central Zhejiang, China [Elektronische Daten] [MiaoYun Zhang, ShiJie Wang, GuoQiang Ma, HuaiZhong Zhou, Jun Fu] Sulfur dioxide and sulfate aerosols in the atmosphere are significant factors leading to acidification of the atmospheric environment and worsening the pollution of acid deposition. Because of the "fingerprint” characteristics of the stable sulfur isotopic composition, sulfur isotope has been widely adopted in environmental researches concerning sulfur cycle and source identification. In this study, the atmospheric environment of Jinhua City, central Zhejiang Province, was continuously monitored, and the sulfur isotopic composition of SO2 and sulfate aerosols in the atmosphere was analyzed. The results indicate that the variation of δ 34S values for SO2 ranges from 1.0‰ to 7.5‰, and annual average is 4.7‰±2.3‰, whereas that of sulfate aerosols ranges from 6.4‰ to 9.8‰, and annual average is 8.1‰±1.0‰. The δ 34S values for SO2 have significant seasonal variations, which are 7.0‰ in winter and 3.3‰ in summer. These variations cannot be attributed to a single factor, and we suggest a temperature-dependent isotope equilibrium fractionation and elevated biogenic sulfur emissions of isotopically light S in summer may be the main controlling mechanisms. Furthermore, we also discuss the δ 34S model of atmospheric SO2 oxidation to form sulfate, and suggest that heterogeneous oxidation dominates in the oxidation reactions of atmospheric SO2 in the central Zhejiang Province. We further suggest that the relative humidity in the atmosphere plays an important role in the oxidation mechanism of atmospheric SO2. Science China Press and Springer-Verlag Berlin Heidelberg, 2010 sulfur isotope nationallicence SO2 nationallicence aerosol nationallicence homogeneous oxidation nationallicence heterogeneous oxidation nationallicence Zhang MiaoYun State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550002, Guiyang, China aut Wang ShiJie State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550002, Guiyang, China aut Ma GuoQiang Jinhua Environmental Monitoring Center, 321013, Jinhua, China aut Zhou HuaiZhong Jinhua Environmental Monitoring Center, 321013, Jinhua, China aut Fu Jun Environmental Monitoring Center of Zhejiang Province, 310012, Hangzhou, China aut Science China Earth Sciences SP Science China Press 53/11(2010-11-01), 1717-1725 1674-7313 53:11<1717 2010 53 11430 https://doi.org/10.1007/s11430-010-4017-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-010-4017-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang MiaoYun State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550002, Guiyang, China aut NATIONALLICENCE 700 1- Wang ShiJie State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550002, Guiyang, China aut NATIONALLICENCE 700 1- Ma GuoQiang Jinhua Environmental Monitoring Center, 321013, Jinhua, China aut NATIONALLICENCE 700 1- Zhou HuaiZhong Jinhua Environmental Monitoring Center, 321013, Jinhua, China aut NATIONALLICENCE 700 1- Fu Jun Environmental Monitoring Center of Zhejiang Province, 310012, Hangzhou, China aut NATIONALLICENCE 773 0- Science China Earth Sciences SP Science China Press 53/11(2010-11-01), 1717-1725 1674-7313 53:11<1717 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer