| WORLD (US EPA) AQI PM2.5 | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
|---|---|---|---|---|---|---|
| Range | 0-50 | 51-100 | 101-150 | 151-200 | 201-300 | 300 |
| µg/m³ | 0-12 | 12-35 | 35-55 | 55-150 | 150-250 | 250 |
| UK DAQI | Low | Low | Low | Moderate | Moderate | Moderate | High | High | High | Very High |
|---|---|---|---|---|---|---|---|---|---|---|
| Band | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| PM2.5 µg/m³ | 0-11 | 12-23 | 24-35 | 36-41 | 42-47 | 48-53 | 54-58 | 59-64 | 65-70 | 71 or more |
| PM10 µg/m³ | 0-16 | 17-33 | 34-50 | 51-58 | 59-66 | 67-75 | 76-83 | 84-91 | 92-100 | 101 or more |