According to the monitoring of sulfur dioxide, nitrogen dioxide and inhalable particles in three monitoring points in Nanle County, Pu Yang city in 2017, the analysis was carried out. According to the data, the pollutant concentration changed obvious with seasonal variation. The daily mean of sulfur dioxide concentration was the highest in the second quarter, and the daily mean of nitrogen dioxide concentration was higher in the third and fourth quarters, and the inhalable particles were higher in the second and fourth quarters. The annual mean of sulfur dioxide and nitrogen dioxide concentration is within the secondary standard of environmental air quality standards. However, the annual mean of the concentration of particulate matter can exceed the secondary standard of ambient air quality standards.
Guangdong Chemical Industry
Puyang： Nanle County： sulfur dioxide： nitrogen dioxide： inhalable particulate matter