大气环境挥发性有机物的污染特性分析

在产业结构调整的大背景下,降低大气环境中挥发性有机物的浓度成为现代城市管理的一项重要任务。该文以S市为例,分别在该市的学校、小区和工业园设置采样点,采集空气样品并使用气相色谱仪展开成分分析。分析结果表明,空气中挥发性有机物共有6大类,分别是卤代烷烃、苯系物、硫氧化合物、烷烃烯烃、卤代烯烃和卤代苯。进一步分析,挥发性有机物在1年之中的冬季,1天之中的上午,浓度较高;工业园的挥发性有机物浓度最高,小区次之,学校最低。通过采取大气污染专项治理措施,能够显著降低大气环境中挥发性有机物的浓度。下一步,S市应重点从推广清洁能源、完善监督体系和严格惩戒机制等方面综合施策,从而进一步降低挥发性有机物的浓度。

In the context of industrial structure adjustment,reducing the concentration of volatile organic compounds in the atmospheric environment has become an important task of modern urban management.Taking S city as an example,this paper sets up sampling points in schools,residential areas and industrial parks of the city,collects air samples and uses gas chromatograph to carry out composition analysis.The results show that there are six types of volatile organic compounds in the air,which are halogenated alkanes,benzene series,oxygen-containing sulfur compounds,alkane olefins,halogenated olefins and halogenated benzene.Further analyses showed that the concentration of volatile organic compounds was higher in the winter of the year and in the morning of the day;the concentration of volatile organic compounds in the industrial park was the highest,followed by the community,and the school was the lowest.By taking special measures to control air pollution,the concentration of volatile organic compounds in the atmospheric environment can be significantly reduced.In the next step,S city should focus on the promotion of clean energy,improve the supervision system,strict punishment mechanism and other aspects of comprehensive measures,so as to further reduce the concentration of volatile organic compounds.