Abstract：The composition of PM2.5 was on-line monitored using MARGA IC Analyzer ADI 2080 on the top of ShiJiaZhuang meteorology bureau building from August 21 to September 23, 2014 continuously. These on-line data were analyzed conjointly with meteorological data and other routine environmental monitoring data. Sum of concentration of 8water-soluble ions was in consistent with that contained in PM2.5 in Shijiazhuang, of which SO42-, NH4+ and NO3- accounted for 88.4%, indicating that they are the major components of PM2.5. The proportion of soluble SO42- was the largest. Its abundance raised with the increasing temperature and decreasing humidity. On the contrary, the soluble NO3- raised with the increasing humidity. The proportion of NH4+ was relatively stable. Visibility declined in terms of power function with the increase of the water-soluble ions above. The concentration of SO42-, NH4+ and NO3- were affected by prevailing wind direction, industrial layout and mountain terrain. The largest contribution to the local concentration was northeast wind, while the west contributed the smallest. SOR and NOR of the precursor gas content (SO2, NO2) of SO42-, NO3- increased along with humidity. SOR was more closely associated with humidity. Daily NOR was in unimodal pattern due to daily radiation variation. The concentration of Ca2+, as an indicator of building material, was higher in dry sunny day especially with the influence of west wind, indicating that construction dust should be controlled during that kind of weather.
陈静, 杨鹏, 韩军彩, 钤伟妙. 基于高分辨率MARGA数据分析石家庄PM2.5成分谱特征[J]. 中国环境科学, 2015, 35(9): 2594-2604.
CHEN Jing, YANG Peng, HAN Jun-Cai, QIAN Wei-Miao. Analysis of PM2.5 spectrum characteristics in Shijiazhuang based on high resolution MARGA data. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(9): 2594-2604.
