Page 237 - 《环境工程技术学报》2022年第5期

Vol.12，No.5 环 境 工 程 技 术 学 报 第 12 卷，第 5 期
Sep.，2022 Journal of Environmental Engineering Technology 2022 年 9 月

崔宏，刘肖，秦巧燕.汾渭平原典型污染城 市 PM 5 来源分布及传输分 析 [J].环境工程技术学报，2022，12（5）：1593-1600.
2.
CUI H,LIU X,QIN Q Y.PM source distribution and transmission analysis in typical polluted cities of Fenwei Plain[J].Journal of Environmental
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Engineering Technology，2022，12（5）：1593-1600.
汾渭平原典型污染城 市 PM 5 来源分布及传输分析
2.
1
1
崔宏 ，刘肖 ，秦巧燕 2
1.山西师范大学地理科学学院
2.山西师范大学分析测试中心
摘要 基于后向轨迹模式（HYSPLIT）和美国国家环境预报中心 的 GDA 数据（201 年 9 3 月—202 年 0 2 月），模拟了临汾市冬季
S
24 的气团后向轨迹按季节的聚类，研究了不同来源区域对临汾 市 PM 5 的主要污染来源和污染传输通道，阐明 了 PM 5 不同
h
2. 2.
轨迹传输的季节特征，结合潜在源贡献（PSCF）分析法和浓度权重轨迹（CWT）分析法，解析了不同污染源区对临汾市的污染贡献
强度。结果表明：临汾 市 PM 5 污染主要集中在冬季，春秋季次之，夏季最低；通过气团后向轨迹聚类分析发现，沿汾河流域西南
2.
与西北方向是大气污染主要传输通道；潜在源贡献和浓度权重轨迹分析发现，临汾市境内、洪洞县、尧都区、襄汾县污染贡献强
度较大，周边城市榆林、运城、焦作对临汾市有所影响。
关键词 PM ；后向轨迹；潜在源贡献分析；浓度权重轨迹分析；汾渭平原
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中图分类号：X513 文章编号：1674-991X（2022）05-1593-08 doi：10.12153/j.issn.1674-991X.20210310

PM source distribution and transmission analysis in
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typical polluted cities of Fenwei Plain
1
1
CUI Hong , LIU Xiao , QIN Qiaoyan 2
1.School of Geographical Science, Shanxi Normal University
2.Center of Analysis and Test, Shanxi Normal University

Abstract Based on HYSPLIT backward trajectory model and NCEP's GDAS data (from March 2019 to February
2020), the seasonal clustering of air mass backward trajectory in Linfen City for 24 hours in winter was simulated,
the main pollution sources and pollution transmission channels of PM from different source areas were studied,
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and the seasonal characteristics of different trajectory transmission of PM were clarified. Combined with the
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potential source contribution factor (PSCF) analysis method and the concentration weighted trajectory (CWT)
analysis method, the pollution contribution intensity of different pollution source areas to Linfen City was analyzed.
The results showed that PM pollution in Linfen City was mainly concentrated in winter, followed by spring and
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autumn, and the lowest in summer. Through the cluster analysis of the backward trajectory of the air mass, it was
found that the southwest and northwest directions along Fenhe River Basin were the main pollution transmission
channels of air pollution. Through the analysis of potential source contribution and concentration weight trajectory,
it was found that the pollution contribution intensity in Hongtong County, Yaodu District, and Xiangfen County of
Linfen City was relatively strong, and the surrounding cities of Yulin, Yuncheng, and Jiaozuo had a certain impact
on Linfen City.
Key words PM ; backward trajectory; potential source contribution analysis; concentration weight trajectory
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analysis; Fenwei Plain

随着经济的高速发展，大气污染已成为影响人 气象条件下，大气污染物的环境浓度分布可能相差
类生存和发展的主要因素 [1-2] 。除了与人为的污染源 甚远 [3-5] ，如太阳辐射强度影响着大气湍流运动速度，
排放有关，污染严重程度还依赖于地理条件和气象 特别是在中高纬度地区，空气质量很大程度上受气
条件。有研究表明，同样的污染源排放分布，在不同 象条件的制约，对于特定的城市地形，也影响着大气

收稿日期：2021-07-08
基金项目：山西省高等学校科技创新项目（2019L0456）；山西省临汾市大气污染重点科技攻关项目（2019-KJHX036）
作者简介：崔宏（1988—），女，副教授，博士，主要研究方向为环境污染防治，cuihongd1988@163.com