Impact of meteorological conditions on a nine-day particulate matter pollution event observed in December 2013,Shanghai,China

被引：12

作者：

Jianming Xu ^{[1
]}

Fengxia Yan ^{[2
]}

Ying Xie ^{[1
]}

Fengyun Wang ^{[2
]}

Jianbin Wu ^{[1
]}

Qingyan Fu ^{[3
]}

机构：

[1] Shanghai Meteorological Bureau

[2] Meteorological Center of Traffic Management Bureau of East China

[3] Shanghai Environmental Monitoring Center

来源：

Particuology | 2015年 / 20卷 / 03期

关键词：

Particulate matter; PM2.5; Pollution event; Planetary boundary layer; Cold front; Urban air pollution;

D O I：

暂无

中图分类号：

X513 [粒状污染物];

学科分类号：

0706 ; 070602 ;

摘要：

A severe particulate matter pollution event occurred in Shanghai from 1 to 9 December 2013.The mean hourly mass concentrations of PM2.5 and PM10 were 211.9 and 249.0 μg/m3,respectively.Reanalysis data,in situ,and remote-sensing measurements were used to examine the impacts of meteorological conditions on this event.It was found that the synoptic pattern of weak pressure,the reduced planetary boundary layer height,and the passage of two cold fronts were key factors causing the event.Four stages were identified during this event based on the evolution of its PM2.5 levels and weather conditions.The highest concentration of PM2.5（602 μg/m3） was observed in stage 3.High PM2.5 concentrations were closely associated with a low local ventilation index,with an average of 505m2/s,as well as with the influx of pollutants from upstream,transported by the cold fronts.

引用

页码：69 / 79

页数：11

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