小区域一次重污染过程特征及原因分析--以隆尧县为例  

Characteristics and Causes of Primary Heavy Pollution in a Small Area--A Case Study of Longyao County

作　　者：和娴娴 刘振 栗勇田 雷旭阳 赵玉广 HE Xian-xian;LIU Zhen;LI Yong-tian;LEI Xu-yang;ZHAO Yu-guang(Qinhuangdao Tianda Environmental Protection Research Institute Co.,Ltd.,Qinhuangdao,Hebei 066000,China;Hebei Xiongan Tianhuan Testing Technology Co.,Ltd,Baoding,Hebei 071000,China;Hebei University of Science,Technology&Engineering,Xingtai,Hebei 054000,China;Hebei Environmental Meteorological Center,Shijiazhuang 050000,China)

机构地区：[1]秦皇岛天大环保研究院有限公司,河北秦皇岛066000 [2]河北雄安天环检测技术有限公司,河北保定071000 [3]河北科技工程职业技术大学资源与环境工程系,河北邢台054000 [4]河北省环境气象中心,石家庄050000

出　　处：《四川环境》2023年第3期57-64,共8页Sichuan Environment

基　　金：秦皇岛市科学技术研究与发展计划(201902A252);邢台大气污染治理成效持续研究--以隆尧县为例(XTSKFZ2021041)。

摘　　要：为深入研究小区域内重污染天气成因,为地方政府在大气治理过程中提供数据及科学支撑,利用空气自动监测资料和气象观测资料,通过CAMx-PSAT模拟,对2018年11月23日~12月3日隆尧县发生的一次重污染天气特征及成因进行分析。结果表明:本次重污染过程强度高,持续时间长,具有典型的外源传输+沙尘叠加的特征,气温高、湿度大、风速小、混合层高度低、静稳指数高,综合气象扩散条件非常不利是造成本次污染过程的重要气象原因;本地污染源排放是污染发生的主要原因,周边区域污染物的输送和沙尘影响使污染程度进一步加重。本研究对区域大气治理工作具有指导意义。In order to further study the causes of heavy pollution weather in a small area,provide data and scientific support for the local government in the process of atmospheric control,automatic air monitoring data and meteorological observation data were used to analyze the characteristics and causes of a heavy pollution weather in Longyao County from November 23 to December 3,2018 through the CAMX-PSAT simulation.the results showed that this heavy pollution process has the characteristics of high intensity,long duration,typical external transmission+sand and dust superposition,the important meteorological reasons for this pollution process were high temperature,high humidity,low wind speed,low mixing layer height,high static stability index,and very unfavorable comprehensive meteorological diffusion conditions.The emission of local pollution sources is the main cause of pollution,and the transport of pollutants and the influence of dust in surrounding areas aggravate the pollution.This study is of guiding significance for regional atmospheric governance.

关 键 词：重污染过程 静稳 特征 沙尘 外源传输 

分 类 号：X51[环境科学与工程—环境工程]