徐州市空气质量标况数据转实况数据比较研究

Comparative Study of Air Quality Standard Condition Data to Real Data in Xuzhou City

2018年8月,我国发布《环境空气质量标准》(GB 3095—2012)修改单,根据修改单,人们需要把污染物的浓度表示方法由标况浓度转换为实况浓度。结合徐州市2018年空气质量自动监测数据,本文介绍了其转换方法,同时比较分析了转换后颗粒物PM2.5和气态污染物O3-8h的变化。标况转为实况数据后,PM2.5和O3-8h浓度基本下降,优良天数上升。

In August 2018,China issued a revised“Ambient Air Quality Standard”(GB 3095—2012).According to the amendment sheet,people need to convert the pollutant concentration expression method from the standard concentration to the real concentration.Combined with Xuzhou’s 2018 air quality automatic monitoring data,this article introduces its conversion method,and compares and analyzes the changes of PM2.5 and gaseous pollutant O3-8h after conversion.After the standard condition was converted to real data,the concentrations of PM2.5 and O3-8h basically decreased,and the number of excellent days increased.