供热改造和未供热改造的“城中村”环境空气质量比对

太原市冬季的大气污染属于煤烟型污染,主要污染物为二氧化硫和可吸入颗粒物。2011年11月,对已实施供热改造的南上庄、菜园和未供热改造的南屯、坞城进行了连续5日的手工监测。通过数据分析可以得出:二氧化硫最大浓度出现时间主要集中在清晨和傍晚,经过供热改造的"城中村"冬季环境空气质量好于未进行供热改造的"城中村",说明供热改造是改进冬季环境空气质量的一条有效途径。

The Comparison of Environmental Air Quality of Urban Villages with Heat-supply Transformation and without Heat-supply Transformation

The air pollution of Taiyuan City in winter belongs to coal smoke pollution, and the principal pollutants are inhalable particles （PMlo） and sulfur dioxide （SO2）. In November 2011, the manual monitoring for five days have been made for Nanshangzhuang Village and Caiyuan Village with heat-supply transformation and Nantun Village and Wucheng Village wit＇.~out heat-supply transformation. The data analysis shows that the occurrence time of maximum concentration of sulfur dioxide mainly is early morning and late afternoon, the winter＇s environmental air quality of urban villages with heat-supply transformation is better than that of urban villages without heat-supply transformation, explaining that the heat-supply transformation is an effective way for improving the winter＇ s environmental air quality.