雾霾天气下城市大气PM_(2.5)污染物扩散模拟研究  

Simulation on Diffusion of Urban Atmospheric PM_(2.5)Pollutants Under Haze Weather

作　　者：蒋硕[1,2] 董疆南 关乐 Jiang Shuo;Dong Jiangnan;Guan Le(Hebei Sub-Center of CMATC,Baoding 071000,China;Hebei Province Information Engineering School,Baoding 071000,China;Baoding Meteorological Bureau,Baoding 071000,China;Sanhe Meteorological Bureau,Sanhe 065200,China)

机构地区：[1]中国气象局气象干部培训学院河北分院,河北保定071000 [2]河北省信息工程学校,河北保定071000 [3]保定市气象局,河北保定071000 [4]三河市气象局,河北三河065200

出　　处：《环境科学与管理》2024年第12期60-65,共6页Environmental Science and Management

摘　　要：为了有效治理城市大气的PM_(2.5)污染,提出雾霾天气下城市大气PM_(2.5)污染物扩散模拟研究方法。将河北省作为研究区域,首先分析了PM_(2.5)的季、月和日浓度变化特征;其次,建立高斯烟羽模型预测PM_(2.5)在不同区域的扩散情况,同时采用一元回归方法分析PM_(2.5)浓度与温度、风速和压强之间的相关性;最后,根据上述分析结果采用SPSS软件模拟城市大气PM_(2.5)在雾霾天气下的扩散情况,从而分析扩散规律和影响因素。实验结果表明,石家庄和邢台PM_(2.5)浓度较高,唐山和中部平原污染严重。所提方法在雾霾和晴天下的模拟精度均较高,准确模拟了PM_(2.5)的扩散情况,验证了有效性。In order to effectively control PM_(2.5)pollution in urban atmosphere,a simulation research method for the diffusion of PM_(2.5)pollutants in urban atmosphere under haze weather is proposed.Taking Hebei Province as the research area,the seasonal,monthly,and daily concentration changes of PM_(2.5)were first analyzed.Secondly,the paper established a Gaussian plume model to predict the diffusion of PM_(2.5)in different regions,and used a univariate regression method to analyze the correlation between PM_(2.5)concentration and temperature,wind speed,and pressure.Based on the above analysis results,SPSS software was used to simulate the diffusion of urban atmospheric PM_(2.5)under haze weather,in order to analyze its diffusion patterns and influencing factors.The experimental results indicate that Shijiazhuang and Xingtai have high concentrations of PM_(2.5),while Tangshan and the central plain are heavily polluted.The proposed method has high simulation accuracy in both haze and sunny weather,accurately simulating the diffusion of PM_(2.5)and verifying its effectiveness.

关 键 词：雾霾天气 高斯烟羽模型 PM_(2.5) 一元回归分析 污染物扩散模拟 

分 类 号：X513[环境科学与工程—环境工程]