某化工厂拆迁后空气中挥发性有机污染物污染状况调查研究

Investigation on the pollution of volatile organic pollutants in the air after the demolition of a chemical plant

以陕西省渭南市某化工厂拆迁区为研究区,采取速测仪器设备,对近地表大气中挥发性有机污染物进行调查。结果表明,因该化工厂长期以苯为原料生产富马酸,导致其反应堆、蒸馏区、苯反应区等生产环节所在地块的近地表大气中存在不同程度的挥发性有机物污染,其中,以反应堆处挥发性有机的污染物种类最多、浓度也相对较高。污染物是以苯、甲苯、乙苯、邻二甲基苯、间/对二甲苯、三氯乙烯、苯乙烯、四氯乙烯、1,2-二氯苯、萘等苯系物为主。此调查研究结果为该区域下一步生态环境系统调查提供了初判依据。

Taking the demolition area of a chemical plant in Weinan City,Shaanxi Province as the research area,the volatile organic pollutants in the near surface atmosphere were investigated by using rapid measurement instruments and equipment.The results show that the reactor,distillation area,there are different degrees of volatile organic pollutants in the near surface atmosphere of the plot where the benzene reaction zone and other production links are located,and the types and concentrations of volatile organic pollutants at the reactor are the most and relatively high.The pollutants are mainly benzene,toluene,ethylbenzene,o-dimethyl benzene,M/p-xylene,trichloroethylene,styrene,tetrachloroethylene,1,2-dichlorobenzene,naphthalene and other benzeneseries.The investigation results provide a preliminary basis for the next eco-environmental system investigation in the region.