Zou S C, Lee S C, Chan C Y, Ho K F, Wang X M, Chan L Y, Zhang Z X
School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275, China.
Chemosphere. 2003 Jun;51(9):1015-22. doi: 10.1016/S0045-6535(03)00004-3.
Ambient air monitoring was conducted at Datianshan landfill, Guangzhou, South China in 1998 to investigate the seasonal and horizontal variations of trace volatile organic compounds (VOCs). Twelve sampling points over the Datianshan landfill were selected and samples were collected simultaneously using Carbontrap(TM) adsorption tubes. Thirty eight VOCs were detected in the winter, whereas 60 were detected in the summer. The VOC levels measured in summer were alkanes, 0.5-6.5 microg/m(3); aromatics, 2.3-1667 microg/m(3); chlorinated species, 0.2-31 microg/m(3); terpines, 0.1-34 microg/m(3); carbonyl species, 0.3-5.6 microg/m(3) and naphthalene and its derivatives, 0.4-27 microg/m(3). Compared to the summer samples the VOC levels in winter were much lower (mostly 1-2 orders of magnitude lower). The aromatics are dominant VOCs in landfill air both in winter and summer. High levels of alkylbenzene and terpines such as methyl-isopropylbenzene (max 1667 microg/m(3)) and limonene (max 162 microg/m(3)) cause undesirable odor. The similar correlation coefficients of BTEX in summer and winter suggest VOCs emissions were from landfill site sources. The variation of BTEX ratio at landfill site is different from that in the urban area of Guangzhou. It shows that the ambient VOCs at landfill site were different from the urban areas.
1998年在中国南方广州的大田山垃圾填埋场进行了环境空气监测，以调查痕量挥发性有机化合物（VOCs）的季节和水平变化。在大田山垃圾填埋场上选择了12个采样点，并使用Carbontrap(TM)吸附管同时采集样本。冬季检测到38种VOCs，而夏季检测到60种。夏季测得的VOC水平为：烷烃，0.5 - 6.5微克/立方米；芳烃，2.3 - 1667微克/立方米；氯化物，0.2 - 31微克/立方米；萜烯，0.1 - 34微克/立方米；羰基化合物，0.3 - 5.6微克/立方米；萘及其衍生物，0.4 - 27微克/立方米。与夏季样本相比，冬季的VOC水平要低得多（大多低1 - 2个数量级）。芳烃在冬季和夏季都是垃圾填埋场空气中的主要VOCs。高浓度的烷基苯和萜烯，如甲基异丙基苯（最高1667微克/立方米）和柠檬烯（最高162微克/立方米）会产生不良气味。夏季和冬季BTEX的相关系数相似，表明VOCs排放来自垃圾填埋场源。垃圾填埋场BTEX比例的变化与广州市区不同。这表明垃圾填埋场的环境VOCs与市区不同。
