大气估算模式AERSCREEN、SCREEN3气体扩散规律简析  

A Brief Analysis of Gas Diffusion Pattern of AERSCREEN and SCREEN3 Air Dispersion Modeling

作　　者：臧传利 丁峰[3] 徐玉凤 肖微炜 王少峰 Zang Chuanli;Ding Feng;Xu Yufeng;Xiao Weiwei;Wang Shaofeng(Jiangsu NJU Environmental Technology Co.,Ltd.,Nanjing,Jiangsu,210046,China;Appraisal Center for Environment ＆ Engineering,Ministry of Environmental Protection,Beijing 100012,China;National Reaserch Center for Organic Poison Pollution Control and Recycling,Nanjing,Jiangsu 210046,China)

机构地区：[1]江苏南大环保科技有限公司,江苏南京210046 [2]国家有机毒物污染控制与资源化工程技术研究中心,江苏南京210046 [3]环境保护部环境工程评估中心,北京100012

出　　处：《绿色科技》2018年第18期85-89,共5页Journal of Green Science and Technology

基　　金：环保部财政专项(编号:2016-C002)

摘　　要：SCREEN3作为HJ2.2-2008导则推荐的估算模式,在大气环境影响评价中广泛应用。新一代估算模式AERSCREEN耦合了AERMOD的相关内核(AERMOD、AERMAP、BPIPPRM),可快速计算污染源在最不利的气象条件下的浓度结果。通过不同污染源参数的案例设计,分析了估算模式AERSCREEN与SCREEN3在不同高度排气筒、不同温度烟气、排放区域城市及农村选项的废气扩散规律,结果显示:AERSCREEN估算模式最大落地浓度高于SCREEN3估算结果,低温、低温烟气差异更大。此外,低温、低源状况下,两模式均显示,城市区域更不利烟气扩散。AERSCREEN计算的结果最保守,能更好地反映最不利的气象条件及浓度结果。SCREEN3 is a recommended model for HJ2.2- 2008 guidelines and has been widely used in atmospheric environmemal impact assessment. The new estimation model AERSCREEN is a screening level air quality model can quickly calculate the concentration of source in the most adverse weather conditionsbased on AERMOD （consists of three main components： AERMOD, AERMAP, BPIPPRM）. Based on the case design of different pollution sources, this paper analyzes the diffusion rules of AERSCREEN and SCREEN3 in different height chimney, different temperature flue gas and urban or rural emission area. The results show that the maximum landing concentration of AERSCREEN estimation mode is higher than that of SCREEN3, and the difference of low temperature,low tempera ture flue gas is much greater. In addition, in the low temperature, low source conditions, the two models＇ calculated results show that the urban area is more conducive to flue gas diffusion. The results of the AERSCREEN calculation are the most conservative and better reflect the most unfavorable meteorological conditions and concentration results.

关 键 词：大气估算模式 AERSCREEN SCREEN3 模型分析 

分 类 号：X823[环境科学与工程—环境工程]