广州大田山垃圾填埋场空气中微量挥发有机污染物组成

Composition of volatile organic compounds in Guangzhou Datianshan landfill air

以广州大田山垃圾填埋场为例 ,研究了在不同季节填埋场空气中微量挥发性有机污染物的种类和含量变化情况 .结果表明 ,在春、夏季样品中可分别检测出 47和 64种化合物 ,其中有些化合物为USEPA优先控制毒害有机污染物 ;夏季样品中微量挥发性有机污染物的浓度大多比春季样品高 ,有的甚至高 1个数量级以上 .因此加强对垃圾的卫生填埋 ,尤其是加强对夏季的垃圾卫生填埋的科学管理 ,减少挥发性有机污染物向大气中的扩散 ,应给予充分的关注 .

Trace volatile organic compounds (VOCs) in Datianshan landfill gas in different seasons were identified and quantified. 47 and 64 of trace VOCs, including 17 USEPA priority controlled pollutants, were detected in the spring and summer samples respectively. Benzene and other monocyclic hydrocarbons had the highest concentrations ranging from 4.25 to 202.35?μg/m\+3, and other VOCs such as chlorinated hydrocarbons had relatively lower concentrations. VOC concentrations were higher in the summer than in the spring, and even by one order of magnitude for some compounds.