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This paper reported the variation of elements(Na,Mg,Al,Si,S,K,Ca,Ti,Mn,Fe,As,Br,Hg) and water-soluble ions(Na+,NH4+,K+,Mg2+,Ca2+,F-,Cl-,NO3-,SO42-) and Sr isotopic compositions in the dusts of PM2.5 potential-source in Nanchang City of Jiangxi Province,China during Autumn 2013.