城市街道可吸入颗粒物扩散模拟研究  

Study on the Dispersion Simulation of Inhalable Particulates in Urban Streets

作　　者：胡伟 张玲玲 Hu Wei;Zhang Lingling(Jiangsu Academy of Environmental Industry and Technology Corp,Nanjing 210019,Jiangsu,China)

机构地区：[1]江苏环保产业技术研究院股份公司,江苏南京210019

出　　处：《绿色科技》2024年第16期107-109,115,共4页Journal of Green Science and Technology

摘　　要：采用南京市街道可吸入颗粒物浓度的连续监测数据,用OSPM街道峡谷模式对可吸入颗粒物扩散规律进行了模拟研究。结果表明:实测值与模拟值之间吻合比较好,实测平均浓度和模拟平均浓度分别为0.135 mg/m^(3)和0.139 mg/m^(3),实测值与模拟值之间的相关系数为R^(2)=0.5898。高风速条件下OSPM模型的模拟效果要比低风速条件下好,实测值与模拟值之间的相关系数分别为R^(2)=0.76和R^(2)=0.4082。OSPM模式可以较好地模拟出街道峡谷中污染物扩散的基本规律。Based on the continuous monitoring data of PM_(10) concentration in Nanjing city road,an OSPM model was adopted for the dispersion simulation of inhalable particulates.The results show that there is a good agreement between the measured and simulated values.The measured and simulated mean concentrations are 0.135 mg/m~3 and 0.139 mg/m~3,respectively.The correlation coefficient between the measured and simulated values is R~2=0.5898.The simulation effect of the OSPM model under high wind speed conditions is better than that under low wind speed conditions,and the correlation coefficients between the measured and simulated values are R~2=0.76 and R~2=0.4082,respectively.The OSPM model can effectively simulate the basic laws of pollutant diffusion in street canyons.

关 键 词：PM_(10) 扩散模拟 OSPM 街道峡谷 

分 类 号：X51[环境科学与工程—环境工程]