Open AccessThe difference in air pollutants in typical northern and southern CHINA coastal cities-Taking Shenzhen and Qingdao as examples
Author(s) -
Chunliang Chen,
Zhongxiang Zhao,
Lei Zhao,
Bo Yang
Publication year - 2022
Publication title -
revista internacional de contaminación ambiental
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.185
H-Index - 19
ISSN - 0188-4999
DOI - 10.20937/rica.54354
Subject(s) - pollutant , environmental science , air pollutants , air quality index , particulates , china , criteria air contaminants , air pollution , environmental engineering , meteorology , geography , chemistry , organic chemistry , archaeology
In 2018, four air pollutants in Qingdao and Shenzhen were comprehensively analyzed and evaluated according to the standards. According to the results, PM2.5 exceeded its standard by multiples of 1.11 and 1.03 in January and February, respectively, in Shenzhen, and the no-exceedance probability was 84.6%. However, the no-exceedance probability in Qingdao was only 50%. When the maximun index of ambient air quality was used to evaluate the above pollutants, the air pollutant in Shenzhen was NO2 from May to September and PM2.5 in other the months, but the pollutants in Qingdao were different each month. The distribution patterns of the monthly average mass concentration of the pollutants in Shenzhen and Qingdao were consistent with the seasonal distribution. The particulate matter in the air was still the focus of the government in Shenzhen. The sources of air pollutants in Qingdao were diverse, and most pollutants were related to energy combustion.