摘要
为了确定工业园区无组织排放挥发性有机物(VOCs)的污染特征及其特征污染物,建立了SUMMA罐采样-气质联用法测定环境空气中39种VOCs的方法。实验结果表明,方法的相对标准偏差为0.4%~4.2%,重复性限为0.77~12.64μg/m3,测得4组不同加标量的加标回收率分别为93.68%~105.36%、85.28%~116.80%、93.02%~102.04%及86.48%~102.09%;实际样品中检出环境空气中的挥发性卤代烃和苯系物共34种,其中,卤代烷烃有15种,卤代烯烃6种,苯系物9种,卤代苯4种;VOCs平均质量浓度为124.33μg/m3,特征污染物为甲苯(21.94μg/m3)、苯(21.40μg/m3)、二氯甲烷(13.28μg/m3)及二氯丙烷(11.57μg/m3)。
In order to determine the pollution characteristics of volatile organic compounds(VOCs)of unorganized emission and characteristic pollutants in industry zone,a method for the determination of 39 kinds VOCs in the air by SUMMA canister sampling and GC-MS was established.The experimental results show that the relative standard deviation of the method is 0.4%~4.2%,the repeatability limit is 0.77~12.64 g/m3.The recoveries of four groups with different scalar quantities are 93.68%~105.36%,85.28%~116.80%,93.02%~102.04%and 86.48%~102.09%respectively.There are 34 kinds of volatile halogenated hydrocarbons and benzene compounds in the air,which are 15 kinds of halogenated alkane,6 kinds of halogenated olefin,9 kinds of benzene series,4 kinds of halogenated benzene.The average mass concentration of VOCs is 124.33μg/m3,the characteristic pollutants are methylbenzene(21.94μg/m3),benzene(21.40μg/m3),dichloromethane(13.28μg/m3)and 1,2-dichloropropane(11.57μg/m3).
作者
冯超
崔建升
王立新
刘大喜
段丽莉
王梦璇
Feng Chao;Cui Jiansheng;Wang Lixin;Liu Daxi;Duan Lili;Wang Mengxuan(Institute of Environmental Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050081,China)
出处
《煤炭与化工》
CAS
2018年第2期155-160,共6页
Coal and Chemical Industry
