太原市大气污染防治战略研究

以太原市2003年-2013年大气中主要污染物SO2、NO2、PM10为依据,分析了其季节、年度变化特征和外源输入的影响。2013年污染物的季节变化显示,SO2在冬季较高是受采暖排放影响;PM10在春季由于扬尘使其浓度最高。2003年-2012年间SO2和PM10浓度呈显著下降趋势,但仍较严重。重污染天气受来自西南、西北和东南方向的气团影响。太原市城区SO2和氮氧化物的排放总量已超过大气环境容量,其中主要是工业排放。对重点工业企业搬迁的方向也将对太原市空气质量改善产生影响。

Study on Air Pollution Control Strategy in Taiyuan

Based on the monitoring data of atmospheric pollutants（ SO2, NO2, and PM10 ） in 2003 - 2013 in Taiyuan, the seasonal and annual pollutants variation characteristics and the influence of exogenous input on the urban air quality were analyzed. The seasonal variation of pollutants during 2013 showed the highest level of SO2 was in winter maybe related to the heating, while the highest level of PM10 was in spring due to the strongest wind. The trends of pollutants from 2003 to 2012 showed the levels of SO2 and PM10 which still exceeded national ambient air quality standard had a significantly decline. The air mass from southwest, northwest and southeast direction might affect the air quality during the heavy pollution days. It has been estimated that the total emission of SO2 and NO2 was mainly from coal related industry and exceeded the atmospheric environmental capacity of Taiyuan City. The movement of the large polluting enterprises may be a direct method for the air quality improvement, but the relocation should be wholly assessed and discussed.