DOI: 10.1016/j.atmosenv.2015.05.070
Scopus记录号: 2-s2.0-84949626129
论文题名: Water-soluble ions in atmospheric aerosols measured in five sites in the Yangtze River Delta, China: Size-fractionated, seasonal variations and sources
作者: Wang H ; , Zhu B ; , Shen L ; , Xu H ; , An J ; , Xue G ; , Cao J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 123 起始页码: 370
结束页码: 379
语种: 英语
英文关键词: Seasonal distribution
; Size distribution
; Sources
; The Yangtze River Delta
; Water-soluble ions
Scopus关键词: Aerosols
; Atmospheric aerosols
; Atmospheric thermodynamics
; Calcium
; Elementary particle sources
; Ion chromatography
; Ions
; Rivers
; Size distribution
; Aerosol mass concentration
; Anthropogenic sources
; Geographic location
; Impact of temperatures
; Regional variation
; Seasonal distributions
; Water-soluble ions
; Yangtze river delta
; Water resources
; ammonia
; ion
; unclassified drug
; water soluble ion
; aerosol
; concentration (composition)
; ion
; particle size
; seasonal variation
; size distribution
; aerosol
; Article
; autumn
; boundary layer
; carbon footprint
; chemical composition
; China
; exhaust gas
; geography
; particulate matter
; priority journal
; river
; seasonal variation
; spring
; summer
; temperature
; winter
; China
; Yangtze Delta
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: In order to investigate the regional variations of water-soluble ions (WSIs), size-resolved measurement of aerosol particles and WSIs was conducted by using Anderson Sampler and Ion Chromatography at five sites (Nanjing, Suzhou, Lin'an, Hangzhou and Ningbo) in the Yangtze River Delta (YRD) region, China in the Autumn of 2012 and Winter, Spring and Summer of 2013. WSIs exhibited obvious seasonal variations due to the monsoon conversion, with the highest level in winter and lowest level in summer. The aerosol mass concentrations and WSIs in different size segments varied with four seasons. The dominant ions concentrations in PM2.1 ranked in the order of SO42- > NO3- > NH4+ > Cl- > K+ > Ca2+, and the dominant ions concentrations in PM2.1-10 ranked in the order of Ca2+ > NO3- > SO42- > Cl- > NH4+ > Na+. The size spectra of mass and WSIs concentration peaked mostly at 0.43-0.65 μm in four seasons. The concentration discrepancies of WSIs in different cities were caused by the geographic locations and emission source. It's belonged to ammonium-rich distribution in PM2.1 and ammonium-poor distribution in PM2.1-10 in the YRD region. The impact of temperature on mass concentrations of NO3- and NH4+ in PM2.1 were stronger than those in PM2.1-10. PCA analysis shows that the sources of WSIs dominant by anthropogenic sources, soil particles or falling dust, sea salt and burning process. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81339
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, China; Jiaxing Environmental Monitoring Station, Jiaxing, China; Zhejiang Institute of Meteorological Sciences, Hangzhou, China; Ningbo Meteorological Observatory of Zhejiang Province, Ningbo, China; Suzhou Meteorological Observatory of Jiangsu Province, Suzhou, China
Recommended Citation:
Wang H,, Zhu B,, Shen L,et al. Water-soluble ions in atmospheric aerosols measured in five sites in the Yangtze River Delta, China: Size-fractionated, seasonal variations and sources[J]. Atmospheric Environment,2015-01-01,123