云南省城市大气颗粒物污染特征模拟分析及生态宜居性评价研究  

Simulation of Atmospheric Particulate Pollution Characteristics and Evaluation of Ecological Livability in Cities of Yunnan Province

作　　者：李国妹 杨毅[1] 吴永媛 Li Guomei;Yang Yi;Wu Yongyuan(College of Big Data, Yunnan Agricultural University, Kunming 650201, China)

机构地区：[1]云南农业大学大数据学院,云南昆明650201

出　　处：《环境科学与管理》2021年第8期170-174,共5页Environmental Science and Management

摘　　要：现有特征分析方法受模型局限性影响,难以得到准确的大气颗粒污染物扩散路径,影响生态宜居性评价结果。因此,设计云南省城市大气颗粒物污染特征模拟分析及生态宜居性评价方法。通过估算大气颗粒物污染源排放量获得污染排放清单,然后构建颗粒物扩散路径模型,动态测量节点浓度,并模拟污染排放空间分布特征。最后,计算污染轨迹权重浓度,模拟潜在源区贡献值,完成生态宜居性评价。实验结果该方法对PM_(2.5)和PM_(10)的污染特征评估误差较小,更有利于准确评价城市生态宜居性。Due to the limitations of the model,the existing feature analysis methods are difficult to obtain the accurate diffusion path of atmospheric particulate pollutants,which affects the evaluation results of ecological livability.Therefore,the simulation analysis and ecological livability evaluation methods of airborne particulate matter pollution characteristics of Yunnan cities were designed.The pollution emission inventory was obtained by estimating the pollution source emissions of atmospheric particulate matter,and then the particle diffusion path model was constructed to dynamically measure the node concentration,and the spatial distribution characteristics of pollution emissions were simulated.Finally,the weighted concentration of pollution trajectory was calculated,and the contribution value of potential source area was simulated to complete the ecological livability evaluation.Experimental results shows that this method has less error in the evaluation of pollution characteristics of PM_(2.5) and PM_(10),and is more conducive to accurately evaluate urban ecological livability.

关 键 词：大气颗粒物 污染特征 特征模拟 宜居性评价 

分 类 号：X826[环境科学与工程—环境工程]