The Impacts of Emission Control and Regional Transport on PM2.5 Ions and Carbon Components in Nanjing during the 2014 Nanjing Youth Olympic Games
- Zhou, Derong
- Li, Bing
- Huang, Xin
- Virkkula, Aki
- Wu, Haisuo
- Zhao, Qiuyue
- Zhang, Jie
- Liu, Qiang
- Li, Li
- Li, Chunyan
- Chen, Feng
- Yuan, Siyu
- Qiao, Yuezhen
- Shen, Guofeng
- Ding, Aijun
DOIAbstract
Highly time-resolved measurements of water soluble ions, organic and elemental carbon concentrations in the particle diameter size range D-p <2.5 mu m (PM2.5) were performed at a downwind urban site in Nanjing in the western part of the Yangtze River Delta (YRD) in eastern China during the 2014 Youth Olympic Games (YOG). In this study, we discuss the impacts of emission control in Nanjing and the surrounding areas during the YOG and regional/long-range transport on PM2.5 pollution in Nanjing. The average concentrations of NO3-, SO42-, NH4+ were 12.1 +/- 9.9, 16.5 +/- 9.2, 9.0 +/- 5.4 mu g m(-3) during the YOG, and increased 34.3%, 53.7%, 43.9% after the YOG, respectively. The control of construction or on-road soil dust and control of indus...
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