| | | | | | 1000 | 300 | 1000 | | | | 300 | | | | | | | | | | | | | | 20% | | | | | | | | | | 2019 | | | | | | | 3% | | | 3% | PM2.5 | | 2% | | 250 25% | 300 | 45.3% | | 1 1 | | | | 2019 1 1 | | 5% | | | | | | | | | | | | | | 2020 | | | | | | 2019 | | 2020 | | | |