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Simulated average annual PM2.5 concentration reduction ratios in the HBO region under different scenarios compared with 2020.
| Scenario | Reduction ratio of PM2.5 concentration (%) |
|---|---|
| CC scenario in 2025 | 10.81 |
| CC scenario in 2030 | 17.36 |
| CC scenario in 2035 | 28.14 |
| ECC scenario in 2025 | 25.36 |
| ECC scenario in 2030 | 33.62 |
| ECC scenario in 2035 | 44.93 |
