摘要
【目的】针对2023年12月至2024年1月泰安地区一次持续性雾、霾事件,分析霾污染、雾事件的特征及其与雾、霾的相关关系。【方法】使用泰安市2023年12月至2024年1月逐日地面观测资料、NECP提供的FNL资料及MODIS卫星资料,采用区域风场相关矢、主成分分析等方法进行分析。【结果】此次霾污染过程中,本地污染源主要集中在鲁西南地区,周边大尺度远距离输送排放源则位于湖北、湖南、江西及广西等省区。导致霾污染的PM_(2.5)颗粒物的组成主要由NO_(2)和CO构成,其次包括O_(3)和SO_(2)。在特定环境下,霾污染的过程会增加空气中凝聚核子的数量,从而显著推动城市雾的发展。【结论】此次过程霾污染受本地和外来传输共同影响,污染物主要由NO_(2)和CO构成,一定条件下霾对大雾生成起促进作用。
[Purposes]This study aims to analyze the haze pollution,fog events,and the correlation be⁃tween fog and haze during a persistent fog and haze event in Tai′an from December 2023 to January 2024.[Methods]Using daily ground observation data from Tai′an City during December 2023 to Janu⁃ary 2024,FNL data provided by NECP,and MODIS satellite data,we conducted analysis with methods such as regional wind field correlation vectors and principal component analysis.[Findings]During the haze pollution episode,local pollution sources were mainly concentrated in the southwest region of Shan⁃dong Province,while large-scale long-distance transport sources were located in Hubei,Hunan,Ji⁃angxi,and Guangxi provinces.The PM_(2.5)particles causing haze pollution were primarily composed of NO_(2)and CO,followed by O_(3)and SO_(2).Under specific conditions,haze pollution can increase the number of condensation nuclei in the air,thereby significantly promoting the development of urban fog.[Conclusions]The haze pollution during this event was jointly attributed to local and external transport,with pol⁃lutants dominated by NO_(2)and CO.Under certain conditions,haze facilitates the formation of heavy fog.
作者
卢慧超
栾兆鹏
尹祥坤
LU Huichao;LUAN Zhaopeng;YIN Xiangkun(Key Laboratory for Meteorological Disaster Prevention and Mitigation of Shandong,Jinan 250031,China;Tai′an Meteorological Bureau,Tai′an 271000,China)
出处
《河南科技》
2025年第15期90-94,共5页
Henan Science and Technology
基金
山东省气象局面上项目(2020sdqxm16,2023sdqxm12)
山东省气象局引导类项目(2022SDTD18)。
关键词
霾污染
排放源
主成分分析
区域传输
泰安
haze pollution
emission sources
principal component analysis
regional transmission
Tai′an
