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The environmental parameters during the atmospheric exposure test in Chengdu.
| Place | Temperature (°C) | Relative humidity (%) | Rainfall precipitation (mm/a) | pH value of rainfall | SO2 concentration (μg/m3) | Cl− settling rate (mg/m2/d) |
|---|---|---|---|---|---|---|
| Chengdu city | 16.6 | 81 | 966.9 | 6.4 | 11.3 | 0.37 |
