狭长交叉山谷中污染物浓度预测分析  

Forecast and analysis of pollutant concentrations in narrow valley

作　　者：陈楠[1] 王文勇[1] 

机构地区：[1]西南交通大学地球科学与环境工程学院,成都610031

出　　处：《环境工程学报》2011年第8期1837-1840,共4页Chinese Journal of Environmental Engineering

基　　金：四川省自然科学基金资助项目(2008ZR0163)

摘　　要：为更准确地预测狭长交叉山谷中大气污染物浓度,利用高斯山谷扩散模式和美国Earth Technology Incorporat-ed公司研究的中尺度空气质量扩散模型CALPUFF对某山谷工业园区所在的狭长山谷中大气污染物浓度进行了计算。计算中,CALPUFF模型考虑了山谷中地表地形的变化,融入了诊断风场模块CALMET。结果表明:高斯山谷扩散模式的计算结果与实测值相差甚大,而CALPUFFF模型的计算结果与实测值接近,因此采用CALPUFF模型计算狭长山谷中大气污染物浓度比较符合实际。Aiming to forecast the air pollutant concentration in a narrow valley more accurately,the air pollutant concentration of a narrow valley,in which an industrial park sets,was calculated respectively with the Gauss valley dispersion model and the mesoscale air quality diffusion model CALPUFF proposed by Earth Technology Incorporated of the United States.The CALPUFF model counts in the changes of surface and topography of the valley,and incorporates the diagnostic wind field model CALMET.The results shows that there is a significant deviation between the Gauss valley dispersion model-based results and the measured values,while the CALPUFF model-based results are much closer to the measured values.Therefore,it is recommended to use the CALPUFF model to calculate the air pollutant concentrations in a narrow valley in practice.

关 键 词：高斯山谷扩散模式 中尺度空气质量扩散模型 狭长山谷 浓度计算 

分 类 号：X51[环境科学与工程—环境工程]