| | | 2022 7 | 87% PM2.5 25 | 2.81 | | | | | | | | | | | | | | | | | | | | 2021 268 | 8% | | 17 | 23 | | | | | | | | | | | | | | | | | | | | | | 2018 2021 | 237 | 235 99.16% | | 2020 19.9% | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |