A mixture of gases and obnoxious odours are major components of landfill emission. A dispersion modelling on air pollutants and odour emissions anticipated from a proposed Integrated Waste Management Facility was conducted considering five operating scenarios. Impacts of the predicted ground level concentrations of air pollutants (including carbon monoxide, CO; oxides of nitrogen, NO_X; sulphur dioxide, SO₂; particulate matter, PM and hydrocarbons, HC) and odour on ambient air quality were investigated using the 10-min 1 OU/m³ odour limit, CH₄ Lower Explosive Limit (LEL) and the daily limits of CO, NOx, SO₂, PM and HC. The anticipated maximum ground level concentration of emitted odour and CH₄ are 0.0040 OU/m³ and 0.0349 ppm, respectively. Simultaneous operations of all the major components of the facility will generate the daily maximum concentrations of 7.34, 2.60, 7.31, 29.72 and 0.42 μg/m³, for CO, NO_X, SO_2, PM and HC, respectively. Generally, the facility impacts on ambient air quality will be within the acceptable limit.

中文翻译：

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综合废物管理设施产生的垃圾填埋场空气和气味排放。


气体和难闻气味的混合物是垃圾填埋场排放的主要成分。考虑到五种运营情景，对拟议的综合废物管理设施预期的空气污染物和气味排放进行了扩散建模。使用 10 种空气污染物（包括一氧化碳，CO；氮氧化物，NO _X ；二氧化硫，SO ₂ ；颗粒物，PM 和碳氢化合物，HC）和气味的预测地面浓度对环境空气质量的影响进行了调查。 -min 1 OU/m ³气味限值、CH ₄爆炸下限 (LEL) 以及 CO、NOx、SO ₂ 、PM 和 HC 的每日限值。预计排放气味和CH ₄的最大地面浓度分别为0.0040 OU/m ³和0.0349 ppm。该设施所有主要部件的同时运行将产生CO、NO _X 、SO _{2 、} PM 和HC 的日最大浓度分别为7.34、2.60、7.31、29.72 和0.42 μg/m ³ 。一般情况下，设施对环境空气质量的影响在可接受的范围内。