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Source apportionment of size-fractionated particles during the 2013 Asian Youth Games and the 2014 Youth Olympic Games in Nanjing, China.
Sci Total Environ 2017; 579:860-870ST

Abstract

In this study, samples of size-fractionated particulate matter were collected continuously using a 9-size interval cascade impactor at an urban site in Nanjing, before, during and after the Asian Youth Games (AYG), from July to September of 2013, and the Youth Olympic Games (YOG), from July to September of 2014. First, elemental concentrations, water-soluble ions including Cl-, NO3-, SO42-, NH4+, K+, Na+ and Ca2+, organic carbon (OC) and elemental carbon (EC) were analysed. Then, the source apportionment of the fine and coarse particulate matter was carried out using the chemical mass balance (CMB) model. The average PM10 concentrations were 90.4±20.0μg/m3 during the 2013 AYG and 70.6±25.3μg/m3 during the 2014 YOG. For PM2.1, the average concentrations were 50.0±12.8μg/m3 in 2013 and 34.6±17.0μg/m3 in 2014. Investigations showed that the average concentrations of particles declined significantly from 2013 to 2014, and concentrations were at the lowest levels during the events. Results indicated that OC, EC, sulfate and crustal elements have significant monthly and size-based variations. The major components, including crustal elements, water-soluble ions and carbonaceous aerosol accounted for 75.3-91.9% of the total particulate mass concentrations during the sampling periods. Fugitive dust, coal combustion dust, iron dust, construction dust, soil dust, vehicle exhaust, secondary aerosols and sea salt have been classified as the main emissions in Nanjing. The source apportionment results indicate that the emissions from fugitive dust, which was the most abundance emission source during the 2013 AYG, contributed to 23.0% of the total particle mass. However, fugitive dust decreased to 6.2% of the total particle mass during the 2014 YOG. Construction dust (14.7% versus 7.8% for the AYG and the YOG, respectively) and secondary sulfate aerosol (9.3% versus 8.0% for the AYG and the YOG, respectively) showed the same trend as fugitive dust, suggesting that the mitigation measures of controlling particles from the paved roads, construction and industry worked more efficiently during the YOG.

Authors+Show Affiliations

School of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, China.School of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, China. Electronic address: tjwang@nju.edu.cn.Nanjing Environmental Monitoring Center, Nanjing 210008, China.Nanjing Environmental Monitoring Center, Nanjing 210008, China.Department of Physics, Imperial College London, London, SW7 2AZ, United Kingdom.School of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, China.School of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27884527

Citation

Chen, Pulong, et al. "Source Apportionment of Size-fractionated Particles During the 2013 Asian Youth Games and the 2014 Youth Olympic Games in Nanjing, China." The Science of the Total Environment, vol. 579, 2017, pp. 860-870.
Chen P, Wang T, Lu X, et al. Source apportionment of size-fractionated particles during the 2013 Asian Youth Games and the 2014 Youth Olympic Games in Nanjing, China. Sci Total Environ. 2017;579:860-870.
Chen, P., Wang, T., Lu, X., Yu, Y., Kasoar, M., Xie, M., & Zhuang, B. (2017). Source apportionment of size-fractionated particles during the 2013 Asian Youth Games and the 2014 Youth Olympic Games in Nanjing, China. The Science of the Total Environment, 579, pp. 860-870. doi:10.1016/j.scitotenv.2016.11.014.
Chen P, et al. Source Apportionment of Size-fractionated Particles During the 2013 Asian Youth Games and the 2014 Youth Olympic Games in Nanjing, China. Sci Total Environ. 2017 Feb 1;579:860-870. PubMed PMID: 27884527.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Source apportionment of size-fractionated particles during the 2013 Asian Youth Games and the 2014 Youth Olympic Games in Nanjing, China. AU - Chen,Pulong, AU - Wang,Tijian, AU - Lu,Xiaobo, AU - Yu,Yiyong, AU - Kasoar,Matthew, AU - Xie,Min, AU - Zhuang,Bingliang, Y1 - 2016/11/22/ PY - 2016/09/18/received PY - 2016/11/02/revised PY - 2016/11/02/accepted PY - 2016/11/26/pubmed PY - 2018/4/14/medline PY - 2016/11/26/entrez KW - Asian Youth Games KW - CMB model KW - Size-fractionated particulate matter KW - Source apportionment KW - Youth Olympic Games SP - 860 EP - 870 JF - The Science of the total environment JO - Sci. Total Environ. VL - 579 N2 - In this study, samples of size-fractionated particulate matter were collected continuously using a 9-size interval cascade impactor at an urban site in Nanjing, before, during and after the Asian Youth Games (AYG), from July to September of 2013, and the Youth Olympic Games (YOG), from July to September of 2014. First, elemental concentrations, water-soluble ions including Cl-, NO3-, SO42-, NH4+, K+, Na+ and Ca2+, organic carbon (OC) and elemental carbon (EC) were analysed. Then, the source apportionment of the fine and coarse particulate matter was carried out using the chemical mass balance (CMB) model. The average PM10 concentrations were 90.4±20.0μg/m3 during the 2013 AYG and 70.6±25.3μg/m3 during the 2014 YOG. For PM2.1, the average concentrations were 50.0±12.8μg/m3 in 2013 and 34.6±17.0μg/m3 in 2014. Investigations showed that the average concentrations of particles declined significantly from 2013 to 2014, and concentrations were at the lowest levels during the events. Results indicated that OC, EC, sulfate and crustal elements have significant monthly and size-based variations. The major components, including crustal elements, water-soluble ions and carbonaceous aerosol accounted for 75.3-91.9% of the total particulate mass concentrations during the sampling periods. Fugitive dust, coal combustion dust, iron dust, construction dust, soil dust, vehicle exhaust, secondary aerosols and sea salt have been classified as the main emissions in Nanjing. The source apportionment results indicate that the emissions from fugitive dust, which was the most abundance emission source during the 2013 AYG, contributed to 23.0% of the total particle mass. However, fugitive dust decreased to 6.2% of the total particle mass during the 2014 YOG. Construction dust (14.7% versus 7.8% for the AYG and the YOG, respectively) and secondary sulfate aerosol (9.3% versus 8.0% for the AYG and the YOG, respectively) showed the same trend as fugitive dust, suggesting that the mitigation measures of controlling particles from the paved roads, construction and industry worked more efficiently during the YOG. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/27884527/Source_apportionment_of_size_fractionated_particles_during_the_2013_Asian_Youth_Games_and_the_2014_Youth_Olympic_Games_in_Nanjing_China_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(16)32445-7 DB - PRIME DP - Unbound Medicine ER -