开封市大气颗粒物来源解析研究

Research of the Source Apportionment of the Atmospheric Particles in Kaifeng

采用颗粒物源解析技术,对开封市环境空气颗粒物的来源进行了分析,利用一年时间,分三次采集环境受体样品两种,采集各种污染源类尘六类。通过对源和受体样品的无机元素分析、离子分析和碳分析,得出了源与受体成分谱,将其带入CMB模型进行计算,取得了全市大气颗粒物时间与空间分布特征,并给出了结论:颗粒物主要来源为城市扬尘、煤烟尘、建筑尘、土壤风沙尘、机动车尾气尘和二次扬尘。

This research adopted the technology of particle source apportionment to analyze the source of the atmospheric particles in Kaifeng. Through a year＇s time, two kinds of receptor samples and 6 kinds of dusts from various kinds of pollution sources were collected. Source＇s element and environmental receptor＇s element spectrum were obtained through the analysis of source＇s element and environmental receptor＇ s inorganic element, ion and carbon. A CMB model was applied to identify the time and space distribution features. The results showed that urban raising dust, soot dust, building dust, soil dust, exhaust gas dust and dust re- entrainment contributed to the source of particulate matters.