Analysis the Effect and Source on Water-Soluble Ions of Fine Particulate Matter(PM2.5) in Urumqi
Author(s): LIU Xinchun, CHEN Hongna, ZHAO Kelei, ZHONG Yuting, YAN Jingwu, Institute of Desert Meteorology, CMA, Desert Atmosphere and Environment Observation Experiment of Taklimakan Station, Administration Office of Motor Vehicle Emission Supervision, Urumqi City, Beijing King Wing Environmental Protection Technology Co., Ltd
Pages: 2002-2008
Year: 2015 Issue: 12
Journal: Ecology and Environmental Sciences
Keyword: atmospheric aerosol; water-soluble ions; sources analysis; fine particulate matter(PM2.5); Urumqi;
Abstract: Based on the data of atmospheric aerosol(PM2.5) form Jan.2013 to Feb.2014 at Meteorological Administration Tree-ring Laboratory（TRL） and Meteorological Satellite Station（MSS） in the center of Urumqi,and water-soluble ions were analyzed by ion chromatogram（IC）.Based on the sulfur oxidation ratio（SOR） and the correlation of ions,the possible emission sources were discussed.The results showed that,The total water-soluble ions of PM2.5 at TRL and MSS sites were 88.03 μg·m-3 and 65.11 μg·m-3,and accounted for 81.99%and 86.24%of PM2.5 mass concentrations,respectively.Seasonal variations of water-soluble ions were:SO42-,NO3-,Cl- and NH4+ showed winter > autumn> spring > summer;Na+ showed winter > autumn > summer > spring;Ca2+showed autumn > summer > spring > winter.SO42-,NO3- and NH4+ were the major species in water-soluble ions,and they were mainly in the form of（NH4）2SO4、NH4HSO4 and NH4NO3 in PM2.5.Cl- and K+ were mainly from the burning of fossil fuels and emissions of biomass;Ca2+ and Mg2+ were mainly from soil,secondary dust and burning of coal.NO3- and SO42- concentration ratio was 0.40,and it showed that stationary source emissions were still the main pollution in Urumqi.Based on the data of atmospheric aerosol（PM2.5） form Jan. 2013 to Feb. 2014 at Meteorological Administration Tree-ring Laboratory（TRL） and Meteorological Satellite Station（MSS） in the center of Urumqi, and water-soluble ions were analyzed by ion chromatogram（IC）. Based on the sulfur oxidation ratio（SOR） and the correlation of ions, the possible emission sources were discussed. The results showed that, The total water-soluble ions of PM2.5 at TRL and MSS sites were 88.03 μg·m-3 and 65.11μg·m-3, and accounted for 81.99% and 86.24% of PM2.5 mass concentrations, respectively. Seasonal variations of water-soluble ions were: SO42-, NO3-, Cl- and NH4+ showed winter > autumn> spring > summer; Na+ showed winter > autumn > summer > spring; Ca2+ showed autumn > summer > spring > winter. SO42-, NO3- and NH4+ were the major species in water-soluble ions, and they were mainly in the form of（NH4）2SO4、NH4HSO4 and NH4NO3 in PM2.5. Cl- and K+ were mainly from the burning of fossil fuels and emissions of biomass; Ca2+ and Mg2+ were mainly from soil, secondary dust and burning of coal. NO3- and SO42- concentration ratio was 0.40, and it showed that stationary source emissions were still the main pollution in Urumqi.
Pages: 2002-2008
Year: 2015 Issue: 12
Journal: Ecology and Environmental Sciences
Keyword: atmospheric aerosol; water-soluble ions; sources analysis; fine particulate matter(PM2.5); Urumqi;
Abstract: Based on the data of atmospheric aerosol(PM2.5) form Jan.2013 to Feb.2014 at Meteorological Administration Tree-ring Laboratory（TRL） and Meteorological Satellite Station（MSS） in the center of Urumqi,and water-soluble ions were analyzed by ion chromatogram（IC）.Based on the sulfur oxidation ratio（SOR） and the correlation of ions,the possible emission sources were discussed.The results showed that,The total water-soluble ions of PM2.5 at TRL and MSS sites were 88.03 μg·m-3 and 65.11 μg·m-3,and accounted for 81.99%and 86.24%of PM2.5 mass concentrations,respectively.Seasonal variations of water-soluble ions were:SO42-,NO3-,Cl- and NH4+ showed winter > autumn> spring > summer;Na+ showed winter > autumn > summer > spring;Ca2+showed autumn > summer > spring > winter.SO42-,NO3- and NH4+ were the major species in water-soluble ions,and they were mainly in the form of（NH4）2SO4、NH4HSO4 and NH4NO3 in PM2.5.Cl- and K+ were mainly from the burning of fossil fuels and emissions of biomass;Ca2+ and Mg2+ were mainly from soil,secondary dust and burning of coal.NO3- and SO42- concentration ratio was 0.40,and it showed that stationary source emissions were still the main pollution in Urumqi.Based on the data of atmospheric aerosol（PM2.5） form Jan. 2013 to Feb. 2014 at Meteorological Administration Tree-ring Laboratory（TRL） and Meteorological Satellite Station（MSS） in the center of Urumqi, and water-soluble ions were analyzed by ion chromatogram（IC）. Based on the sulfur oxidation ratio（SOR） and the correlation of ions, the possible emission sources were discussed. The results showed that, The total water-soluble ions of PM2.5 at TRL and MSS sites were 88.03 μg·m-3 and 65.11μg·m-3, and accounted for 81.99% and 86.24% of PM2.5 mass concentrations, respectively. Seasonal variations of water-soluble ions were: SO42-, NO3-, Cl- and NH4+ showed winter > autumn> spring > summer; Na+ showed winter > autumn > summer > spring; Ca2+ showed autumn > summer > spring > winter. SO42-, NO3- and NH4+ were the major species in water-soluble ions, and they were mainly in the form of（NH4）2SO4、NH4HSO4 and NH4NO3 in PM2.5. Cl- and K+ were mainly from the burning of fossil fuels and emissions of biomass; Ca2+ and Mg2+ were mainly from soil, secondary dust and burning of coal. NO3- and SO42- concentration ratio was 0.40, and it showed that stationary source emissions were still the main pollution in Urumqi.
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