| 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 | |