Ambient Air Quality Standard Limits
| Pollutant |
Limit Value |
Unit | PPM | Time Average |
|---|---|---|---|---|
| SO₂ | 160 | µg/m³ | 0.061 | 1H |
| SO₂ | 80 | µg/m³ | 0.031 | 24H |
| SO₂ | 60 | µg/m³ | 0.023 | Annual |
| NO₂ | 120 | µg/m³ | 0.064 | 1H |
| NO₂ | 80 | µg/m³ | 0.043 | 24H |
| NO₂ | 40 | µg/m³ | 0.021 | Annual |
| CO | 10 | mg/m³ | 8.726 | 1H |
| CO | 8 | mg/m³ | 6.982 | 8H |
| O₃ | 120 | µg/m³ | 0.061 | 1H |
| O₃ | 100 | µg/m³ | 0.051 | 8H |
| PM₂.₅ | 20 | µg/m³ | 24H | |
| PM₂.₅ | 10 | µg/m³ | Annual | |
| PM₁₀ | 60 | µg/m³ | 24H | |
| PM₁₀ | 40 | µg/m³ | Annual | |
| Pb | 1 | µg/m³ | 24H | |
| Pb | 0.5 | µg/m³ | Annual |