National Air Quality Index (India): Real-Time AQI, Meaning, Health Impact & City Comparison
What is NAQI?
The National Air Quality Index (NAQI) is a tool used in India to communicate air quality status in real time. It simplifies complex air quality data into a single number, color, and description for easy public understanding.
Who publishes it? The NAQI is published by the Central Pollution Control Board (CPCB), Government of India.
AQI Scale & Color Categories
| Category | AQI Range | Color | Health Effects |
|---|---|---|---|
| Good | 0-50 | Air quality is considered satisfactory, and air pollution poses little or no risk. | |
| Satisfactory | 51-100 | Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people. | |
| Moderate | 101-200 | Members of sensitive groups may experience health effects. The general public is not likely to be affected. | |
| Poor | 201-300 | Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects. | |
| Very Poor | 301-400 | Health warnings of emergency conditions. The entire population is more likely to be affected. | |
| Severe | 401-500 | Health alert: everyone may experience more serious health effects. |
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