Study on pollution characteristics and temporal-spatial key control segments of Inner Mongolia Autonomous Region
Based on surface ozone(O3)concentration and other related data like meterological factors in 12 municipalities of Inner Mongolia Autonomous Region,pollution characteristics of Inner Mongolia Autonomous Region were analyzed,and temporal-spatial key control segments were put forward.Results showed O3 concentrations in 2019-2021 reflected the status,when O3 mass concentration of all the 12 municipalities didn't exceed the 2nd grade(160 μg/m3)of"Ambient air quality standard"(GB 3095-2012).Spatial distribution showed that O3 concentration was high in western and southeastern,but low in center and northeastern.O3 prevention and control typical regions Wuhai and surrounding areas,Hetao irrigation area and"One Lake,Two Seas"should be controlled particularly.Key control time should be in May to August.Taking Baotou as an example,industrial structure and vehicle exhaust were important causes for O3 pollution.When the temperature was above 25 ℃ and the wind velocity was below 5 m/s,O3 concentration increased as temperature and wind velocity increased.
ozone pollutionInner Mongolia Autonomous Regionkey control timekey control area
万方数据
维普
