Characteristics of PM2.5 in rural areas of southern Jiangsu Province, China.
To understand pollution level and possible sources of atmospheric fine particulates in rural areas of southern Jiangsu Province of China, samples of PM2.5 were collected and analyzed in Xueyan Town and Taihu Lake Station over three seasons from July 2002 to January 2003. The mass concentrations of PM2.5 and 14 principal component elements were obtained. The results showed that pollution of PM2.5 was serious and the concentration levels of S, Zn, Pb and As were similar to city. There are different seasonal distribution laws of pollutant elements in PM2.5 between two sampling sites, probably due to contribution of local sources, medium or long distance transportation of fine particulates and complicated meteorological conditions. The enrichment levels of S, Zn, Pb, As, K were high, reflecting the influence of anthropogenic activities. Particularly enrichment level of S was much higher in summer, which was probably related to meteorological condition. The result of principal components analysis showed major sources of PM2.5 included crustal resuspension, coal burning, metal processing industry or waste incineration, vehicular emission, which suggests anthropogenic activities is of important influence on PM2.5 in rural areas of southern Jiangsu Province.
Zhou
Zhen-feng
ZF
School of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, China. zhenfengzh@163.com
Liu
Kang
K
Wang
Xiao-rong
XR
Huang
Shi-hong
SH
D000393:Air Pollutants / Q000032:analysis*; D002681:China; D004784:Environmental Monitoring / Q000706:statistics & numerical data*; D019216:Metals, Heavy / Q000032:analysis*; D010316:Particle Size; D012621:Seasons; D013455:Sulfur / Q000032:analysis*
D000393:Air Pollutants; D019216:Metals, Heavy; D013455:Sulfur