青藏高原典型区域臭氧浓度变化及VOCS特征分析  

Analysis of Ozone Concentration Variation and VOCS Characteristics in Typical Regions of Qinghai-Tibet Plateau

作　　者：杨争娇 刘筱谦 王婷 蒋宇超 齐国伟 Yang Zhengjiao;Liu Xiaoqian;Wang Ting;Jiang Yuchao;Qi Guowei(Garze Ecological Environment Monitoring Center of Sichuan Province,Garze 626700,China;Leshan Ecological Environment Monitoring Center of Sichuan Province,Leshan 614000,China)

机构地区：[1]四川省甘孜生态环境监测中心站,四川甘孜626700 [2]四川省乐山生态环境监测中心站,四川乐山614000

出　　处：《广东化工》2024年第17期150-151,172,共3页Guangdong Chemical Industry

基　　金：甘孜州2021年科技计划项目(21zkjjh0041)。

摘　　要：基于青藏高原环境空气中臭氧污染指标研究的重要性,选取位于高原东部的甘孜州区域作为研究对象,通过获取2020年1月1日~2023年6月30日臭氧监测数据,经数据透视表处理给出24小时浓度均值变化趋势,同时结合GIS处理,研究其空间变化规律,得出甘孜州所在的青藏高原区域臭氧浓度时空分布特征为:臭氧浓度较高时段主要集中在3月、4月、5月和7月,其中3月~5月浓度整体偏高与春季气温升高、紫外线增强、生产生活排放臭氧前体物增加以及植物季节性释放VOC浓度升高有关,7月受夏季强辐射天气影响以及旅游旺季氮氧化物、VOC排放量增加有关。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.

关 键 词：青藏高原 臭氧 时空变化特征 

分 类 号：X511[环境科学与工程—环境工程]