3 14 | | | | | 【 1】 | —— | 1000 300 | | 1000 | | | | | 300 | | 【 2】 | —— | | | | | | | | | | | | 【 3】 | —— | | | 20% | | | | | | 【 4】 | —— | | | | | 2019 | | | | | | 【 5】 | —— | 3% | | | 3% PM2.5 | | 2% | | | 250 25% | | 300 45.3% | | 【 6】 | —— 1 1 | | | | 2019 1 1 | | 5% | | | | | | 【 7】 | —— | | | | | | | | 【 8】 | —— 2020 | | | | | | | | 2019 | | 2020 | | |