工业园区大气污染过程与气象风场响应关系研究

本研究在天津空港工业园区建设大气污染物网格化监测系统，基于控制变量法、Moran's I研究并形成大气污染过程与气象风场响应关系建立方法体系。结果表明：工业园区垂直层次主要污染物为PM_2.5、NO₂、PM₁₀、O₃。SSW风、ENE风、SE风分别对高浓度PM_2.5、NO₂、O₃及PM₁₀区外传输影响较大。除区内自排放外，区外机场南西南段排放对PM_2.5影响较大；区外东东北方向津汉公路、东丽湖路等道路移动源对NO₂影响较大；O₃及PM₁₀受区外东南方向津滨高速、宁静高速及津北高速移动源，以及机场东南段排放影响较大。对于区内气流辐合区，9月23日09时1#应加强PM_2.5、NO₂、PM₁₀协同管控，2#应关注NO₂管控，3#西北延长带及5#北向延长带应关注O₃管控；15时应加强对工业园区中、西、东、东南部PM_2.5、O₃、NO₂协同管控；21时14#应加强PM_2.5、O₃协同管控，17#、18#应关注PM₁₀管控。

A study on the response relationship between air pollution process and meteorological wind field in an industrial park

In this study,a grid monitoring system of air pollutants was built in the Tianjin airport industrial zone.Based on the control variable method and Moran′s I study,a method system for establishing the relationship between the air pollution process and meteorological wind field response was formed.The results show that the major pollutants in the industrial park are PM_2.5,NO₂,PM₁₀,and O₃.SSW wind,ENE wind,and SE wind have a great influence on the transport of high concentration PM_2.5,NO₂,O₃,and PM₁₀,respectively.In addition to the local emissions,the south-southwest emissions of the airport outside the district have a greater impact on PM_2.5.Road moving sources such as Jinhan highway and Toray Lake road in the east-northeast direction of the outside of the industrial park have a great influence on NO₂.O₃and PM₁₀are greatly influenced by the moving sources in the Jinbin highway,Ningjing highway,and Jinbei highway in the southeast direction of the outside of the industrial park and the southeast section of the airport.In terms of the convergence zone of airflow of the inside of the industrial park on September 23,the 1#should reinforce the coordinated controlling of PM_2.5,NO₂,and PM₁₀and the 2#should focus on the controlling of NO₂at 09:00 on September 23,2019.Furthermore,the northwest extension zone of the 3#and the north extension zone of the 5#should pay attention to the controlling of O₃.The central,west,east,and southeast sections of the industrial park should enhance the synergetic controlling of PM_2.5,O₃,and NO₂at 15:00 on September 23,2019.14#should enhance the coordinated controlling of PM_2.5and O₃,while 17#and 18#should focus on controlling PM₁₀at 21:00 on September 23,2019.