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Seasonal characteristics of chemical compositions and sources identification of PM2.5 in Zhuhai, China.
Environ Geochem Health. 2019 Apr; 41(2):715-728.EG

Abstract

Fine particulate matter is associated with adverse health effects, but exactly which characteristics of PM2.5 are responsible for this is still widely debated. We evaluated seasonal dynamics of the composition and chemical characteristics of PM2.5 in Zhuhai, China. PM2.5 characteristics at five selected sites within Zhuhai city were analyzed. Sampling began on January 10, 2015, and was conducted for 1 year. The ambient mass concentration, carbon content (organic and elemental carbon, OC and EC), level of inorganic ions, and major chemical composition of PM2.5 were also determined. Average concentrations of PM2.5 were lower than the National Ambient Air Quality Standard (NAAQS) 24-h average of 65 μg/m3. The daily PM2.5 concentration in Zhuhai city exhibited clear seasonal dynamics, with higher daily PM2.5 concentrations in autumn and winter than in spring and summer. Carbon species (OC and EC) and water-soluble ions were the primary components of the PM2.5 fraction of particles. Apart from OC and EC, chemical species in PM2.5 were mainly composed of NH4+ and SO42-. There was a marked difference between the summer and winter periods: the concentrations of OC and EC in winter were roughly 3.4 and 4.0 times than those in summer, while NH4+, SO42-, NO3-, and Na+ were 3.2, 4.5, 28.0, and 5.7 times higher in winter than those in summer, respectively. The results of chemical analysis were consistent with three sources dominating PM2.5: coal combustion, biomass burning, and vehicle exhaust; road dust and construction; and from reaction of HCl and HNO3 with NH3 to form NH4Cl and NH4NO3. However, additional work is needed to improve the mass balance and to obtain the source profiles necessary to use these data for source apportionment.

Authors+Show Affiliations

Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China.Zhuhai Environmental Protection Monitoring Station, Zhuhai, 519000, People's Republic of China. 124289433@qq.com.Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China. chenjyao@mail.sysu.edu.cn.Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China.Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China.Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China.Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China.Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China.Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China.Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China.Center for Water Resources and Environment, School of Geographic Science and Planning, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30116925

Citation

Liang, Zuobing, et al. "Seasonal Characteristics of Chemical Compositions and Sources Identification of PM2.5 in Zhuhai, China." Environmental Geochemistry and Health, vol. 41, no. 2, 2019, pp. 715-728.
Liang Z, Zhao X, Chen J, et al. Seasonal characteristics of chemical compositions and sources identification of PM2.5 in Zhuhai, China. Environ Geochem Health. 2019;41(2):715-728.
Liang, Z., Zhao, X., Chen, J., Gao, L., Zhu, A., Wang, Z., Li, S., Shan, J., Long, Y., Yan, C., & Zhang, K. (2019). Seasonal characteristics of chemical compositions and sources identification of PM2.5 in Zhuhai, China. Environmental Geochemistry and Health, 41(2), 715-728. https://doi.org/10.1007/s10653-018-0164-2
Liang Z, et al. Seasonal Characteristics of Chemical Compositions and Sources Identification of PM2.5 in Zhuhai, China. Environ Geochem Health. 2019;41(2):715-728. PubMed PMID: 30116925.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Seasonal characteristics of chemical compositions and sources identification of PM2.5 in Zhuhai, China. AU - Liang,Zuobing, AU - Zhao,Xinfeng, AU - Chen,Jianyao, AU - Gao,Lei, AU - Zhu,Aiping, AU - Wang,Zhuowei, AU - Li,Shaoheng, AU - Shan,Jiju, AU - Long,Yuemin, AU - Yan,Chang, AU - Zhang,Kai, Y1 - 2018/08/16/ PY - 2017/06/27/received PY - 2018/07/27/accepted PY - 2018/8/18/pubmed PY - 2019/7/4/medline PY - 2018/8/18/entrez KW - Chemical composition KW - PM2.5 KW - Seasonal characteristic KW - Sources KW - Zhuhai SP - 715 EP - 728 JF - Environmental geochemistry and health JO - Environ Geochem Health VL - 41 IS - 2 N2 - Fine particulate matter is associated with adverse health effects, but exactly which characteristics of PM2.5 are responsible for this is still widely debated. We evaluated seasonal dynamics of the composition and chemical characteristics of PM2.5 in Zhuhai, China. PM2.5 characteristics at five selected sites within Zhuhai city were analyzed. Sampling began on January 10, 2015, and was conducted for 1 year. The ambient mass concentration, carbon content (organic and elemental carbon, OC and EC), level of inorganic ions, and major chemical composition of PM2.5 were also determined. Average concentrations of PM2.5 were lower than the National Ambient Air Quality Standard (NAAQS) 24-h average of 65 μg/m3. The daily PM2.5 concentration in Zhuhai city exhibited clear seasonal dynamics, with higher daily PM2.5 concentrations in autumn and winter than in spring and summer. Carbon species (OC and EC) and water-soluble ions were the primary components of the PM2.5 fraction of particles. Apart from OC and EC, chemical species in PM2.5 were mainly composed of NH4+ and SO42-. There was a marked difference between the summer and winter periods: the concentrations of OC and EC in winter were roughly 3.4 and 4.0 times than those in summer, while NH4+, SO42-, NO3-, and Na+ were 3.2, 4.5, 28.0, and 5.7 times higher in winter than those in summer, respectively. The results of chemical analysis were consistent with three sources dominating PM2.5: coal combustion, biomass burning, and vehicle exhaust; road dust and construction; and from reaction of HCl and HNO3 with NH3 to form NH4Cl and NH4NO3. However, additional work is needed to improve the mass balance and to obtain the source profiles necessary to use these data for source apportionment. SN - 1573-2983 UR - https://www.unboundmedicine.com/medline/citation/30116925/Seasonal_characteristics_of_chemical_compositions_and_sources_identification_of_PM2_5_in_Zhuhai_China_ L2 - https://doi.org/10.1007/s10653-018-0164-2 DB - PRIME DP - Unbound Medicine ER -