Analysis of Ozone Concentration Variation and VOCS Characteristics in Typical Regions of Qinghai-Tibet Plateau
Based on the importance of the research on environmental air ozone pollution indicators in the Tibetan Plateau,Ganzi Prefecture in the eastern part of the Plateau was selected as the research object.Through obtaining ozone monitoring data from January 1,2020 to June 30,2023,the 24-hour mean concentration variation trend was presented through PivotTable processing,and its spatial variation rule was studied by combining GIS processing.The spatial and temporal distribution characteristics of ozone concentration in the Tibetan Plateau region where Ganzi Prefecture is located are as follows:The period of high ozone concentration is mainly concentrated in March,April,May and July,among which the overall high concentration in March to May was related to the rise of spring temperature,the enhancement of ultraviolet rays,the increase of ozone precursors emitted by production and life,and the increase of VOC concentrations released by plants in season,and the impact of summer strong radiation weather and the increase of nitrogen oxides and VOC emissions in tourist season.