2016年大连市区一次空气质量重度污染过程分析  

A Severe Air Pollution Process in Dalian Urban Area in 2016

作　　者：王晨 陈建宇 冯诗婧 张明明[1] 苗书一[1] Wang Chen;Chen Jianyu;Feng Shijing;Zhang Mingming;Miao Shuyi(Dalian Environmental Monitoring Center, Dalian Liaoning 116023, China)

机构地区：[1]大连市环境监测中心

出　　处：《中国环境管理干部学院学报》2019年第3期77-80,84,共5页Journal of Environmental Management College of China

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.

关 键 词：污染输送 空气质量 细颗粒物 激光雷达 源解析 

分 类 号：X51[环境科学与工程—环境工程]