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Indoor and Outdoor Chemical Components of PM2.5 in the Rural Areas ofNorthwestern China
Zhu CS(Zhu,Chongshu)[1]; Cao JJ(Cao,Junji)[1,2]; Shen ZX(Shen,Zhenxing)[3]; Liu SX(Liu,Suixin)[1]; Zhang T(Zhang,Ting)[1]; Zhao ZZ(Zhao,Zhuzi)[1]; Xu HM(Xu,Hongmei)[1]; Zhang EK(Zhang,Erke)[4]
2012-12-30
Source PublicationAerosol and Air Quality Research
Volume12Pages:1157-1165
Subtype期刊论文
Abstract

A case study of indoor and outdoor fine particles (PM2.5) was undertaken for rural areas in northwestern China, and quantitative data was obtained on their chemical composition including carbon fractions, water soluble ions, and elements. OM (organic matter), sulfate, and geological material dominated PM2.5, followed by nitrate and ammonium, which accounted for 78–85% of the mass for indoor and outdoor environments. The variations of the carbon fractions indicated that four OC factions and EC1 were more abundant in winter than in summer. SO4 2− contributions were the highest of the ionic species for indoor and outdoor environments (about 40% of total ions in winter and 53% in summer), followed by NO3 − (about 23% in winter and 14% in summer). The integrated results from the ratios of K+/OC, K+/EC, and as well as the EF (enrichment factor) values for K, Cl, S and Pb, indicate that the biofuel contributions were significant in the rural area. The indoor/outdoor ratios and correlations of the components were also investigated. The results for the indoor and outdoor PM2.5 sources showed that biomass burning in summer was the dominant primary source (31% for indoor and 44% for outdoor), and those for winter were coal combustion (21% for indoor and 29% for outdoor) and biomass burning (24% for indoor and 16% for outdoor). Due to the local patterns of energy consumption, the discussion presented in this work could give implications for future strategies to improve rural air quality.

KeywordFine Particles Rural Area Chemical Components Northwestern China
DOI10.4209/aaqr.2012.01.0003
Indexed BySCIE ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10133
Collection粉尘与环境研究室
Corresponding AuthorZhu CS(Zhu,Chongshu)[1]
Affiliation1.Key Laboratory of Aerosol, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China;
2.Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an, China;
3.Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China;
4.Northwest Supervision Center, Ministry of Environmental Protection, China
Recommended Citation
GB/T 7714
Zhu CS,Cao JJ,Shen ZX,et al. Indoor and Outdoor Chemical Components of PM2.5 in the Rural Areas ofNorthwestern China[J]. Aerosol and Air Quality Research,2012,12:1157-1165.
APA Zhu CS.,Cao JJ.,Shen ZX.,Liu SX.,Zhang T.,...&Zhang EK.(2012).Indoor and Outdoor Chemical Components of PM2.5 in the Rural Areas ofNorthwestern China.Aerosol and Air Quality Research,12,1157-1165.
MLA Zhu CS,et al."Indoor and Outdoor Chemical Components of PM2.5 in the Rural Areas ofNorthwestern China".Aerosol and Air Quality Research 12(2012):1157-1165.
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