年份 | AQI级别占比/% | AQI | 优良 占比 | |||||
一级 | 二级 | 三级 | 四级 | 五级 | 六级 | |||
2019 | 24.93 | 59.45 | 14.25 | 1.37 | 0 | 0 | 69.48 | 84.38% |
2020 | 33.61 | 56.01 | 8.74 | 1.37 | 0.03 | 0 | 64.72 | 89.62% |
2021 | 34.25 | 57.53 | 7.95 | 0.03 | 0 | 0 | 63.98 | 91.78% |
2022 | 35.07 | 52.05 | 12.88 | 0 | 0 | 0 | 66.13 | 87.12% |