逐时变化源强在大气扩散模型AERMOD中的应用  

Application of Hourly Variable Source Emission Rate in Air Dispersion Model AERMOD

作　　者：程吉 吴成志 张怡悦 Cheng Ji;Wu Chengzhi;Zhang Yiyue(Trinity Consultants(Hangzhou)Co.,Ltd.,Zhejiang,310012)

机构地区：[1]三捷环境工程咨询(杭州)有限公司,浙江310012

出　　处：《当代化工研究》2021年第19期87-89,共3页Modern Chemical Research

摘　　要：本文结合实际案例,采用基准年逐时变化风速和年平均风速两种方法分别计算了堆场作业扬尘的起尘量,并采用AERMOD模型预测了两种方法计算的源强对周边大气环境的影响,结果表明:两种方法的全年最大日均浓度和年均浓度差异较大,采用逐时变化风速计算源强预测的结果比采用年平均风速源强预测结果要小。Based on an actual case,methods of hourly variable wind speed and annual average wind speed are used to calculate the dust emission of the yard operation respectively in this paper,and AERMOD model is used to predict the influence of emission from these two kinds of method on surrounding atmospheric environment.The results show that the annual maximum daily mean concentration and annual mean concentration of the two methods are significantly different,the result of using hourly variable wind speed is smaller than that using annual average wind speed.

关 键 词：AERMOD 大气扩散模型 逐时变化源强 堆场源 

分 类 号：X513[环境科学与工程—环境工程]