The Daily Air Quality Index (DAQI) tells you about expected levels of air pollution and provides recommended actions and health advice. The index is numbered 1-10 and divided into four bands, Low, Moderate, High and Very High. this gives a simple indication of likely and recorded air pollution, similar to the sun index or pollen index.
Low 1 Low 2 Low 3 Moderate 4 Moderate 5 Moderate 6 High 7 High 8 High 9 Very High 10
| Air Pollution Banding | DAQI Value | At-Risk Individuals | The General Population |
|---|---|---|---|
| Low | 1-3 | Enjoy your usual outdoor activities. | Enjoy your usual outdoor activities. |
| Moderate | 4-6 | Adults and children with lung problems, and adults with heart problems, who experience symptoms, should consider reducing strenuous physical activity, particularly outdoors. | Enjoy your usual outdoor activities. |
| High | 7-9 | Adults and children with lung problems, and adults with heart problems, should reduce strenuous physical exertion, particularly outdoors, and particularly if they experience symptoms. People with asthma may find they need to use their reliever inhaler more often. Older people should also reduce physical exertion. | Anyone experiencing discomfort such as sore eyes, cough or sore throat should consider reducing activity, particularly outdoors. |
| Very High | 10 | Adults and children with lung problems, adults with heart problems, and older people, should avoid strenuous physical activity. People with asthma may find they need to use their reliever inhaler more often. | Reduce physical exertion, particularly outdoors, especially if you experience symptoms such as cough or sore throat. |
At-Risk Individuals
Adults and children with heart or lung problems are at greater risk of symptoms. Follow your doctor's usual advice about exercising and managing your condition. It is possible that very sensitive individuals may experience health effects even on Low air pollution days. Anyone experiencing symptoms should follow the guidance provided here.