2016年大连市区一次空气质量重度污染过程分析
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摘要
利用空气质量监测数据和气象观测资料,结合3D可视激光雷达数据反演的气溶胶消光系数和美国NOAA研制的HYSPLIT气流后向轨迹模型的模拟结果,同时利用在线单颗粒气溶胶质谱仪进行快速在线源解析,对2016年12月17日—21日大连市区出现的一次持续时间较长、污染程度较重的污染过程进行综合分析。结果表明,大连市区此次重污染过程是外来污染输送和本地不利气象条件共同作用下造成的。其中,区域传输带来了上游地区以机动车尾气排放和燃煤排放为主要来源的颗粒物;交替变化的高低压天气系统、静稳的天气形势等不利气象条件也有利于污染物的生成和积累。
Based on air quality monitoring data, meteorological data, aerosol extinction coefficient inversion of 3D visible lidar data, HYSPLIT backward trajectory and the fine particulate matter source apportionment results which given by the single-particle aerosol mass spectrometer(SPAMS), performed an analysis on long duration and serious haze event from December 17, 2016 to December 21 in Dalian urban area. Research results indicated that the haze event resulted from pollution transmission and adverse meteorological condition. Pollution transmission brought particulate matter which was dominated by motor vehicle exhaust. Adverse meteorological condition such as alternating weather system and static stability of the weather situation were beneficial to generating and accumulating particulate matter.
Based on air quality monitoring data, meteorological data, aerosol extinction coefficient inversion of 3D visible lidar data, HYSPLIT backward trajectory and the fine particulate matter source apportionment results which given by the single-particle aerosol mass spectrometer(SPAMS), performed an analysis on long duration and serious haze event from December 17, 2016 to December 21 in Dalian urban area. Research results indicated that the haze event resulted from pollution transmission and adverse meteorological condition. Pollution transmission brought particulate matter which was dominated by motor vehicle exhaust. Adverse meteorological condition such as alternating weather system and static stability of the weather situation were beneficial to generating and accumulating particulate matter.
引文
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[8]廖志恒,范绍佳,黄娟,等.2013年10月长株潭城市群一次持续性空气污染过程特征分析[J].环境科学,2014,35(11):4061-4069.
[9]陈多宏,李梅,黄渤,等.区域大气细粒子污染特征及快速来源解析[J].中国环境科学,2016,36(3):651-659.
[10]陈建宇,范慧君,曹姗姗,等.大连市区一次空气重污染过程分析及来源解析[J].环境保护与循环经济,2017,37(6):58-63.
[2]CARROLL J J,DIXON A J.Regional scale transport over complex terrain,a case study:tracing the Sacramento plume in the Sierra Nevada of California[J].Atmospheric Environment,2002,36(23):3745-3758.
[3]AN X,ZHU T,WANG Z,et al.Amodeling analysis of a heavy air pollution episode occurred in Beijing[J].Atmospheric Chemistry and Physics,2007,7:3103-3114.
[4]包艳英,纪德钰,徐洁.大连市冬季一次典型大气重污染过程的成因分析[J].中国环境管理干部学院学报,2017,27(1):85-90.
[5]孙峰,张大伟,孙瑞雯,等.北京冬季典型PM2.5重污染案例分析[J].中国环境监测,2014,30(6):1-12.
[6]程念亮,高尚银,李云婷,等.北京市2013年1月一次空气重污染过程分析[J].环境监控与预警,2014,6(5):36-40.
[7]安静宇,李莉,黄成,等.2013年1月中国东部地区重污染过程中上海市细颗粒物的来源追踪模拟研究[J].环境科学学报,2014,34(10):2635-2644.
[8]廖志恒,范绍佳,黄娟,等.2013年10月长株潭城市群一次持续性空气污染过程特征分析[J].环境科学,2014,35(11):4061-4069.
[9]陈多宏,李梅,黄渤,等.区域大气细粒子污染特征及快速来源解析[J].中国环境科学,2016,36(3):651-659.
[10]陈建宇,范慧君,曹姗姗,等.大连市区一次空气重污染过程分析及来源解析[J].环境保护与循环经济,2017,37(6):58-63.