鄂尔多斯市O_(3)污染立体变化特征及来源探究  

Exploration of the three dimensional changes and sources of O_(3) pollution in Ordos City

作　　者：王瑾[1] 杨红楼[1,2] 米力[1] 杜红[1] Wang Jin;Yang Hongou;Mi Li;Du Hong(OrdosVocationalCollege,OrdosInnerMongolia 017000,China;Xi′anUniversityofArchitecture andTechnology,Xi′anShaanxi 710055,China)

机构地区：[1]鄂尔多斯职业学院,内蒙古鄂尔多斯017000 [2]西安建筑科技大学,陕西西安710055

出　　处：《环境与发展》2025年第2期61-66,共6页Environment & Development

基　　金：鄂尔多斯市科技计划项目(2021YY社122-51)《基于无人机实时监测平台的鄂尔多斯工业厂区大气污染物四维时空分布研究》。

摘　　要：鄂尔多斯市是典型的能源和重工业城市,其臭氧(O_(3))污染问题突出,但缺乏立体研究。本文基于鄂尔多斯市环境监测数据、气象数据,用轨迹聚类、潜在源贡献函数法(PSCF)、浓度权重轨迹法(CWT)分析了鄂尔多斯市典型污染日O_(3)污染立体变化特征、气象影响和潜在源区。结果如下:根据鄂尔多斯市典型污染日气象条件分析,O_(3)最高值出现在14:00,高温和低湿条件促进了O_(3)的生成;无人机垂直观测发现高空O_(3)浓度大于地面,可能存在高浓度O_(3)区域输送造成本地O_(3)浓度增大;通过后向轨迹聚类和潜在源区分析发现,本市的O_(3)传输来源可能为陕西省和山西省。Ordos City is a typical energy and heavy industry city,and its ozone(O_(3))pollution problem is prominent but lacks threedimensional research.This article is based on environmental monitoring data and meteorological data in Ordos City.Trajectory clustering,Potential Source Contribution Function(PSCF),and Concentration Weighted Trajectory(CWT)methods are used to analyze the threedimensional changes in O_(3) pollution,meteorological impacts,and potential source areas on typical pollution days in Ordos City.The results are as follows:;For the analysis of meteorological conditions on typical polluted days in Ordos City,the highest value of O_(3) occurs at 14:00 noon,and high temperature and low humidity conditions promote the generation of O_(3);Unmanned aerial vehicle vertical observation found that the concentration of O_(3) at high altitude is higher than that on the ground,which may be due to the transportation of high concentration O_(3) in the area,causing an increase in local O_(3) concentration;Through backward trajectory clustering and potential source area analysis,it was found that the main sources of O_(3) in this city are Shaanxi Province and Shanxi Province.

关 键 词：O_(3) 无人机观测 后向轨迹 潜在源区 鄂尔多斯市 

分 类 号：X51[环境科学与工程—环境工程]