Dynamics And Influence Factors Of Atmospheric Environmental Quality In Bayanhot During Recent 5 Years

Air quality changes and its influence factors have become difficult issues of environmental management. Based on the environmental air quality monitoring data of Bayanhot in recent five years, we analyzed the environmental air quality change trend and influence factors of Bayanhot.The results showed that:In the recent 5 years, with the advance of the prevention and control of air pollution, the sulfur dioxide maximum daily average and annual average daily mean were decreased. The average daily mean content in Bayanhot 1 month,2 months,3 months in ambient air of sulfur dioxide content was decreased. In the heating and non-heating period, the average concentration of sulfur dioxide specific value was descended from 2.18 to 1.45.With auto population soaring, the nitrogen dioxide maximum daily average showed an ascendant tendency. But, in 2014 elimination of yellow cars and old cars caused the nitrogen dioxide annual average daily mean value was decreased, while the number of cars increased.In recent years, with strengthen ecological environment construction, artificial afforestation, aerial seeding, sand (mountain) forest, the inhalable particles content minimum daily values and annual average daily mean were decreased. But, between March and June as temperature rises fast, land thaw, soil loose, wind speed, humidity low, and no precipitation has made the inhalable particles average daily mean content had exceeded the secondary level of national atmospheric environment quality standards, and sometimes API was more than 500.Overall, in Bayanhot the main influence factor of air pollution is inhalable particles, and is in a transition phase transition from coal-burning to automobile exhaust. This paper puts forward the measures to improve air quality in Bayahot, provided practical reference for environmental management.