我国南方某生活垃圾填埋场与周边某居住区空气中挥发性有机物的相关性探讨

A Relational Study of the Municipal Solid Waste Landfill in the Southern China and the Habitation nearby in Aspect of Volatile Organic Compounds in the Air

为探讨我国南方某生活垃圾填埋场与周边某居住区空气中挥发性有机物(VOCs)的关联性,分别在同年4月和10月进行连续监测和质谱分析,并以细颗粒物作为辅助指标。结果表明:(1)两地的细颗粒物组成存在明显差异。(2)在4月的监测中,居住区空气中有3种VOCs的浓度明显高于填埋场。(3)在10月的监测中,当居住区出现异味空气时,有4种VOCs的浓度峰值变化呈高度相关。结合源强和扩散条件分析,居住区出现异味空气主要是受到附近污染源的影响,填埋场可能是居住区空气中VOCs的潜在源头之一。

In order to explore the correlation of the municipal solid waste landfill in the southern China and the habitation nearby in aspect of volatile organic compounds(VOCs)in the air,the continuous monitoring and analysis of mass spectrum were carried out in April and October of the same year respectively,using fine particulate matter as the auxiliary index.The results show that:(1)Difference of composition of fine particulate matter between two sites was obvious.(2)During the monitoring in April,the concentrations of 3 kinds of VOCs in the air of the habitation was obviously higher than those in the landfill.(3)During the monitoring in October,peak changes of concentrations of 4 kinds of VOCs were highly correlated when the air smelt peculiar in the habitation.Combined with analysis of source strength and diffusion condition,the peculiar smell in the air of the habitation was mainly caused by sources of pollution nearby and the landfill might be one of potential sources of VOCs in the air of habitation.