摘要
介绍了雾霾的定义和等级划分,并对上海地区雾霾组分特征和产生原因进行了分析研究。对2013年的一次重污染天气的AQI各项指标的污染物浓度进行分析研究,结果表明,上海地区雾霾物质中,PM_(2.5)和NO_2的贡献率较大,主要组分为反应生产的二次气溶胶。综合已有研究成果可以得出,大量本地污染物质排放、不利的气象条件和周边污染物质输入是上海雾霾污染的三大重要原因。
The definition and gradation of fog/haze were described,the constitution and formation of fog/haze were analyzed. The study of different pollutant concentrations of AQI indicators during one heavy haze episode in 2013 showed that PM2.5 and NO2 contributed mostly to the formation of fog/haze in Shanghai. The major constitution of fog/haze was in the form of aerosol,which was the product of the atmospheric reaction. Combined with existing research results,the release of local pollutant,poor meteorological condition and the transportation of pollutant from adhesion area were three major reasons of fog/haze in Shanghai.
出处
《广州化工》
CAS
2017年第16期141-143,共3页
GuangZhou Chemical Industry
关键词
上海
雾霾
组分特征
产生原因
Shanghai
fog/haze
component characteristics
major causes
