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Chemical composition of PM_(2.5) during winter in Tianjin,China |
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| Authors: | Jinxia Gua b Zhipeng Baib Weifang Lib Liping Wua Aixia Liuc Haiyan Dongd Yiyang Xiec a Tianjin Institute of Urban Construction Tianjin China b State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention Control College of Environmental Science Engineering Nankai University Tianjin China c Tianjin Institute of Meteorological Instruments Tianjin China d Tianjin Environmental Monitoring Central Station Tianjin China |
| Affiliation: | Jinxia Gua,b,Zhipeng Baib,Weifang Lib,Liping Wua,Aixia Liuc,Haiyan Dongd,Yiyang Xiec a Tianjin Institute of Urban Construction,Tianjin 300384,China b State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control,College of Environmental Science and Engineering,Nankai University,Tianjin 300071,China c Tianjin Institute of Meteorological Instruments,Tianjin 300074,China d Tianjin Environmental Monitoring Central Station,Tianjin 300191,China |
| Abstract: | PM2.5 samples for 24 h were collected during winter in Tianjin,China. The ambient mass concentration and chemical composition of the PM2.5 were determined. Ionic species were analyzed by ion chromatog-raphy,while carbonaceous species were determined with the IMPROVE thermal optical reectance(TOR) method,and inorganic elements were measured by inductively coupled plasma-atomic emission spec-trometer. The daily PM2.5 mass concentrations ranged from 48.2 to 319.2 g/m3 with an arithmetic average of 144.6 g/m3. ... |
| Keywords: | PM2.5 Water-soluble ions Organic carbon (OC) Elemental carbon (EC) Crustal matter |
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