Water-soluble ions in atmospheric aerosols measured in Xi'an, China: Seasonal variations and sources

2011 ◽  
Vol 102 (1-2) ◽  
pp. 110-119 ◽  
Author(s):  
T. Zhang ◽  
J.J. Cao ◽  
X.X. Tie ◽  
Z.X. Shen ◽  
S.X. Liu ◽  
...  
Keyword(s):  
Atmospheric Aerosols ◽  
Seasonal Variations ◽  
Water Soluble ◽  
Soluble Ions ◽  
Water Soluble Ions

Seasonal variations and size distributions of water-soluble ions in atmospheric aerosols in Beijing, 2012

2015 ◽  
Vol 34 ◽  
pp. 197-205 ◽  
Author(s):  
Yongjie Yang ◽  
Rui Zhou ◽  
Jianjun Wu ◽  
Yue Yu ◽  
Zhiqiang Ma ◽  
...  
Keyword(s):  
Atmospheric Aerosols ◽  
Seasonal Variations ◽  
Water Soluble ◽  
Size Distributions ◽  
Soluble Ions ◽  
Water Soluble Ions

Spatial and Seasonal Variations of Water Soluble Ions in PM10 of Mid-Brahmaputra Plain of Assam Valley

2016 ◽  
Vol 13 (2) ◽  
pp. 69-81 ◽  
Author(s):  
Pranamika Bhuyan ◽  
Nivedita Barman ◽  
Sabrina Begum ◽  
Dharitri Gogoi ◽  
Sudakshina Borah ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Water Soluble ◽  
Soluble Ions ◽  
Water Soluble Ions ◽  
Brahmaputra Plain

Measurement of PM2.5 and Water-Soluble Ions at Central Tokyo, Japan and Source Apportionment

2016 ◽  
Vol 2 (2) ◽  
pp. 71-78
Author(s):  
Yoshika Sekine ◽  
◽  
Nami Takahashi ◽  
Yuri Ohkoshi ◽  
Akihiro Takemasa ◽  
...  
Keyword(s):  
Source Apportionment ◽  
Water Soluble ◽  
Soluble Ions ◽  
Water Soluble Ions

scholarly journals Water-Soluble Ions in Atmospheric Aerosol Measured in a Semi-Arid and Chemical-Industrialized City, Northwest China

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 456
Author(s):  
Huimin Jiang ◽  
Zhongqin Li ◽  
Feiteng Wang ◽  
Xi Zhou ◽  
Fanglong Wang ◽  
...  
Keyword(s):  
Sulfur Oxidation ◽  
Northwest China ◽  
Water Soluble ◽  
Heterogeneous Reactions ◽  
Anthropogenic Source ◽  
Heating Period ◽  
Qinghai Province ◽  
Soluble Ions ◽  
Water Soluble Ions ◽  
Semi Arid

We investigated water-soluble ions (WSIs) of aerosol samples collected from 2016 to 2017 in Lanzhou, a typical semi-arid and chemical-industrialized city in Northwest China. WSIs concentration was higher in the heating period (35.68 ± 19.17 μg/m3) and lower in the non-heating period (12.45 ± 4.21 μg/m3). NO3−, SO42−, NH4+ and Ca2+ were dominant WSIs. The concentration of SO42− has decreased in recent years, while the NO3− level was increasing. WSIs concentration was affected by meteorological factors. The sulfur oxidation and nitrogen oxidation ratios (SOR and NOR) exceeded 0.1, inferring the vital contribution of secondary transformation. Meanwhile higher O3 concentration and temperature promoted the homogeneous reaction of SO2. Lower temperature and high relative humidity (RH) were more suitable for heterogeneous reactions of NO2. Three-phase cluster analysis illustrated that the anthropogenic source ions and natural source ions were dominant WSIs during the heating and non-heating periods, respectively. The backward trajectory analysis and the potential source contribution function model indicated that Lanzhou was strongly influenced by the Hexi Corridor, northeastern Qinghai–Tibetan Plateau, northern Qinghai province, Inner Mongolia Plateau and its surrounding cities. This research will improve our understanding of the air quality and pollutant sources in the industrial environment.

Sign in / Sign up

Export Citation Format

Share Document