title: [Investigations on Sulfur and Carbon Isotopic Compositions of Potential Polluted Sources in Atmospheric PM₂.₅ in Nanjing Region].
abstract: Potential pollution sources of atmospheric PM₂.₅ in Nanjing region were collected, and sulfur and carbon isotopic compositions were determined by EA-IRMS synchronously. The results showed that δ³⁴S and δ¹³C values ranged from 1.8‰-3.7‰ and -25.50‰- -23.57‰ in coal soot particles; 4.6‰-9.7‰ and -26.32‰- -23.57‰ in vehicle exhaust; 5.2‰-9.9‰ and -19.30‰- -30.42‰ in straw soot particles, respectively. Besides, the δ¹³C value of dust was -13.45‰. It can be observed that sulfur isotopic compositions in coal soot were lower, while the carbon isotopic composition in dust was higher. Comparing with δ³⁴S and δ¹³C values in domestic and foreign polluted sources, we found that sulfur and carbon isotopes in atmospheric PM₂.₅ in Nanjing region presented an obvious regional characteristics. Therefore, the source spectrum of sulfur and carbon isotopic compositions in Nanjing region might provide an insight into source apportionment of atmospheric PM₂.₅.
authors.forename: Lei
authors.initials: L
authors.lastname: Shi
authors.forename: Zhao-bing
authors.initials: ZB
authors.lastname: Guo
authors.forename: Wen-juan
authors.initials: WJ
authors.lastname: Jiang
authors.forename: Mao-ling
authors.initials: ML
authors.lastname: Rui
authors.forename: Gang
authors.initials: G
authors.lastname: Zeng
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002244:Carbon; D002247:Carbon Isotopes / Q000032:analysis*; D002681:China; D003031:Coal; D004391:Dust; D004784:Environmental Monitoring; D004787:Environmental Pollution; D052638:Particulate Matter; D053260:Soot; D013455:Sulfur; D013460:Sulfur Isotopes / Q000032:analysis*; D001335:Vehicle Emissions
chemical_list: D000393:Air Pollutants; D002247:Carbon Isotopes; D003031:Coal; D004391:Dust; D052638:Particulate Matter; D053260:Soot; D013460:Sulfur Isotopes; D001335:Vehicle Emissions; D013455:Sulfur; D002244:Carbon