Chennai Air Quality
About the Air Quality and Pollution Measurement:
| 0 - 50 | Good | Air quality is considered satisfactory, with little or no risk to health. |
| 51 - 100 | Moderate | Acceptable air quality; moderate concern for sensitive individuals. |
| 101 - 150 | Unhealthy for Sensitive Groups | Sensitive groups may experience health effects; the general public may not be affected. |
| 151 - 200 | Unhealthy | Health effects for all; sensitive groups may experience more severe issues. |
| 201 - 300 | Very Unhealthy | Health warnings issued; everyone likely to experience serious health effects. |
| 300+ | Hazardous | Health alert indicating serious effects for all individuals. |
Data sourced from Chennai - Air Quality Index (AQI) | AQI to Cigarette Data is calculated based on Berkley’s research