[Potential Source Contribution Analysis of the Particulate Matters in Shanghai During the Heavy Haze Episode in Eastern and Middle China in December, 2013].
A heavy haze pollution episode occurred in early December, 2013 in middle and eastern China, which lasted for a long period, and covered a large area. During this episode, the hourly maximum concentrations of PM10 and PM2.5 in Shanghai exceeded 700 µg.m-3 and 600 µg.m-3, respectively. To obtain the major air mass transportation path, trajectories reaching urban Shanghai area were analyzed using HYSPLIT model and cluster analysis. Potential Source Contribution Function (PSCF) and Concentration-Weighted Trajectory (CWT) methods were applied to study the potential source regions and the individual contributions to PM10 in Shanghai in December, 2013. The results showed that the northwest and the north paths were the major air mass transport paths in December, among which 79. 6% of the total trajectories came from mainland, while 20. 4% reached Shanghai through the ocean. These were the main transportation paths causing high PM10 mass concentration in December in Shanghai. The potential regions affecting the heavy haze episode in early December in Shanghai were distributed in the Yangtze River Delta including Jiangsu, Zhejiang and Anhui. Besides, air mass from Shandong, Hebei and Henan also had certain impact. The results showed that regional and even super-regional pollution joint control was of significant importance to reduce the frequent heavy air pollution episodes.
Li
L
Li
Jun-lin
JL
Cai
Min
M
Zhou
D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis; D002681:China; D016000:Cluster Analysis; D004784:Environmental Monitoring; D008962:Models, Theoretical; D052638:Particulate Matter / Q000032:analysis*; D012621:Seasons
D000393:Air Pollutants; D052638:Particulate Matter