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影响泰州市空气质量的几种沙尘类型分析
引用本文:程滢,吴莹,彭婷,王玉祥.影响泰州市空气质量的几种沙尘类型分析[J].环境监测管理与技术,2022,34(1):21-26.
作者姓名:程滢  吴莹  彭婷  王玉祥
作者单位:江苏省泰州环境监测中心,江苏 泰州 225300
基金项目:江苏省生态环境厅“江苏省PM2.5和臭氧污染协同控制重大专项”基金资助项目(2019023);泰州市科技支撑计划(社会发展)基金资助项目(TS201709)
摘    要:利用2020年11月—2021年5月泰州市大气颗粒物自动监测数据,结合激光雷达观测资料、气象资料及后向轨迹模式,研究分析不同类型沙尘天气过程对泰州市空气质量的影响。结果表明,研究时段泰州市受到沙尘天气影响共计12次,影响天数21 d,污染天数占比达42.9%;按照影响时长和影响程度将沙尘天气过程分为直接影响型、移速缓慢型、边缘影响型、入海回流型等4种类型;由于天气形势背景和传输路径差异,不同类型沙尘对泰州市空气质量影响程度差异较大,整体而言,移速缓慢型沙尘、入海回流型沙尘对泰州市空气质量影响更为显著。

关 键 词:沙尘天气  大气颗粒物  气溶胶激光雷达  后向轨迹  泰州

Analysis on Several Types of Dust Affecting Air Quality in Taizhou
CHENG Ying,WU Ying,PENG Ting,WANG Yu-xiang.Analysis on Several Types of Dust Affecting Air Quality in Taizhou[J].The Administration and Technique of Environmental Monitoring,2022,34(1):21-26.
Authors:CHENG Ying  WU Ying  PENG Ting  WANG Yu-xiang
Abstract:Based on the automatic monitoring data of atmospheric particulates in Taizhou from November 2020 to May 2021, combined with lidar observation data, meteorological data and backward trajectory model, the impacts of different dust weather processes on air quality in Taizhou were studied. The results showed that Taizhou was affected by 12 dust storms for 21 days during the study period, accounting for 42.9% of pollution days. According to the duration and degree of impact, the dust weather process was divided into four types: direct influence type, slow moving type, edge influence type and backflow type. Due to the difference of weather situation background and transmission path, the impact of different types of dust on air quality in Taizhou was quite different. On the whole, slow moving dust and backflow dust had a more significant impact on air quality in Taizhou.
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