北京某小区室内VOCs污染状况研究  

作　　者：侯明韬 刘晓飞 王雅静 张鑫 迟乃超 李凤彪 

机构地区：[1]中国建材检验认证集团股份有限公司,北京100024

出　　处：《环境保护与循环经济》2020年第10期63-66,共4页environmental protection and circular economy

摘　　要：使用Tenax管采集样,配合气相色谱-质谱检测,对北京市某居民小区室内空气中10种挥发性有机物进行分析。研究结果表明,室内空气中存有卤代烃及芳香族化合物,其中,二氯甲烷、氯仿、四氯化碳及苯、甲苯、二甲苯、氯苯、乙苯的浓度随装修年限的增加含量逐渐下降,而1,4-二氯苯的含量随装修年限的增加显著提高。使用空气评价指数法对不同家庭来源的样品进行评价,证明大部分有机物污染水平较低,不会显著造成环境污染,1,4-二氯苯在室内空气中的含量较高,平均含量达到监测挥发性有机物总量的51.7%,是造成室内空气污染超标的重要因素,经分析是居室内使用含有1,4-二氯苯樟脑球造成的结果,对该污染物的监控应引起重视。In order to investigate the status of indoor 10 volatile organic compounds(VOCs)from a residential area of Beijing,air was sampled by Tenax tube and measured by GC/MS.The results showed halocarbons and aromatic hydrocarbon exist in indoor air and the concentration of dichloromethane,chloroform,carbon tetrachloride,benzene,toluene,xylene,chlorobenzene and ethylbenzene decreased but the concentration of 1,4-dichlorobenzene increased with the increase of decoration years.The air samples from different families was assessed by air index method and the results showed most of VOCs contamination level were low,which did not result in environmental pollution.However,1,4-dichlorobenzene,which originated from the use of 1,4-dichlorobenzene mothball and accounted 51.7%of the total measured VOCs,is the primary reason for VOCs contamination in some cases and its monitoring should be emphasized.

关 键 词：室内空气 挥发性有机物 污染水平 1 4-二氯苯 

分 类 号：X831[环境科学与工程—环境工程]