Pollution characteristics and harm to human health during the Spring Festival in Hohhot

Abstract

Abstract This paper analyzes AQI, PM2.5, PM10, SO2, NO2 during the Spring Festival in 2019, at the same time, and all kinds of pollutants exceeded the range of national secondary standard concentration during this period. According to the previous data, the relationship between PM2.5 and atmospheric visibility and the harm of fine particles to human body were analyzed. The results showed that the mass concentration of PM2.5 has a great impact on the visibility of the atmosphere, when the concentration of fine particles exceeds a certain degree, it is harmful to human body. According to the standard, PM2.5 and PM10 are the most harmful to the environment and human body.