From: Air quality forecasting based on cloud model granulation
Range | AQI class | Class description |
---|---|---|
0ā50 | 1 | Excellent, no health implications. |
51ā100 | 2 | Good, few hypersensitive individuals should reduce outdoor exercise. |
101ā150 | 3 | Slight pollution, slight irritations may occur, individuals with breathing or heart problems should reduce outdoor exercise. |
151ā200 | 4 | Moderate pollution, slight irritations may occur, individuals with breathing or heart problems should reduce outdoor exercise. |
201ā300 | 5 | Heavy pollution, healthy people will be affected significantly. People with breathing or heart problems will experience reduced endurance in activities. These individuals and elders should remain indoors and restrict activities. |
300+ | 6 | Severe pollution, the endurance of healthy people in activities will decrease. There may be strong irritation symptoms that may cause other diseases. The old and the sick should stay indoors to avoid exercise. Healthy should avoid outdoor activities. |