| Pollutant | Sample time | Limit concentration (mg/m3) | ||
| Ⅰ level standard | Ⅱ level standard | Ⅲ level standard | ||
| SO2 | Annual mean | 0.04 | 0.10 | 0.15 |
| NO2 | Annual mean | 0.04 | 0.08 | 0.08 |
| PM10 | Annual mean | 0.02 | 0.06 | 0.10 |