摘要
Abstract
Selecting urban regional environmental air evaluation indicators,a detailed analysis was conducted on the concentration changes and characteristics of six air pollutants PM2.5,PM10,NO2,SO2,CO,and O3 in Jiuquan city from January to December 2024.The results showed that the overall environmental air quality in Jiuquan city showed a positive development trend,with an average air quality rate of 84.65%,an increase of 8.11percentage points compared to 2023.Due to factors such as terrain,climate,and meteorology,the comprehensive index level of environmental air quality in both spring and summer seasons in Jiuquan city is level 2.There are many days with excellent air quality,and the city's air quality is good.关键词
空气质量/变化趋势/污染特征Key words
air quality/change trend/pollution characteristics分类
资源环境
