title: [Characteristics of Water-soluble Inorganic Ions in PM2.5 and PM2.5-10 in Mountain Background Region of East China in Spring].
abstract: PM2.5 and PM2.5-10 samples were collected during March to May of 2014 at the National atmospheric background monitoring station (Wuyishan station) in Fujian Province. Water-soluble inorganic ions in PM2.5 and PM2.5-10 were determined. Meteorological parameters and air pollutants including SO2, NO2, O3, PM10 and PM2.5 were also recorded. The results showed the total water-soluble inorganic ions concentrations were (8.3 ± 2.8 ) μg x m(-3) and (1.3 ± 0.9) μg x m(-3), which accounted for (43.7 ± 7.5) % and (24.4 ± 6.4) % of the PM2.5 and PM2.5-10 mass, respectively. Sulfate and nitrate were the dominant ions in PM2.5 and PM2.5-10, respectively, which accounted for (32.4 ± 6.3) % and (8.9 ± 3.7) % of them, respectively. Sulfate mainly existed in fine particle in the forms of (NH4)2SO4 and K2SO4, while nitrate mainly existed in coarse particle in the form of Mg(NO3)2. The water-soluble inorganic ions at the Wuyishan background monitoring station in spring mainly came from long-distance transportation of dust , sea salt and pollutant of heavy polluted regions.
authors.forename: Bin-bin
authors.initials: BB
authors.lastname: Su
authors.forename: Zhi-sheng
authors.initials: ZS
authors.lastname: Zhang
authors.forename: Jun
authors.initials: J
authors.lastname: Tao
authors.forename: Ju-yang
authors.initials: JY
authors.lastname: Xu
authors.forename: Xian-xin
authors.initials: XX
authors.lastname: Ji
authors.forename: Xin-dong
authors.initials: XD
authors.lastname: Liu
authors.forename: Ruo-yu
authors.initials: RY
authors.lastname: Zhang
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002681:China; D004391:Dust; D007477:Ions; D009566:Nitrates; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis*; D012621:Seasons; D013431:Sulfates; D013461:Sulfur Oxides; D014867:Water
chemical_list: D000393:Air Pollutants; D004391:Dust; D007477:Ions; D009566:Nitrates; D052638:Particulate Matter; D013431:Sulfates; D013461:Sulfur Oxides; D014867:Water