A good AQI level is between 0 and 50, indicating air quality that poses little or no risk to health.
AQI in Madurai Today (Sunday, January 18) - Air Quality in Madurai
As of Today, Madurai AQI level is 74 which is recorded as Moderate category. This level is 4 point(s) higher compared to the previous day. The AQI , a standard measure of air quality, offers insights into the concentration of pollutants in the air, ranging from harmful particles to gases like carbon monoxide and sulfur dioxide.
Madurai's AQI
Madurai WeatherSunday Jan 18
Last 7 Days AQI
| Dates | City, States | AQI |
|---|---|---|
| January 18, 2026 | Madurai, TamilNadu | 74 |
| January 17, 2026 | Madurai, TamilNadu | 70 |
| January 16, 2026 | Madurai, TamilNadu | 68 |
| January 15, 2026 | Madurai, TamilNadu | 49 |
| January 13, 2026 | Madurai, TamilNadu | 41 |
| January 11, 2026 | Madurai, TamilNadu | 73 |
| January 10, 2026 | Madurai, TamilNadu | 65 |
Changes in AQI in Last 7 Days
Most Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Delhi, Delhi | 400 |
| 2 | Ghaziabad, Uttar Pradesh | 394 |
| 3 | Noida, Uttar Pradesh | 388 |
| 4 | Dharuhera, Haryana | 364 |
| 5 | Gurugram, Haryana | 360 |
| 6 | Bhiwadi, Rajasthan | 354 |
| 7 | Greater Noida, Uttar Pradesh | 332 |
| 8 | Ballabgarh, Haryana | 326 |
| 9 | Mandideep, Madhya Pradesh | 322 |
| 10 | Manesar, Haryana | 319 |
Least Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Shillong, Meghalaya | 13 |
| 2 | Chikkamagaluru, Karnataka | 45 |
| 3 | Chamarajanagar, Karnataka | 45 |
| 4 | Bagalkot, Karnataka | 46 |
| 5 | Kalaburagi, Karnataka | 48 |
| 6 | Madikeri, Karnataka | 54 |
| 7 | Korba, Chhattisgarh | 56 |
| 8 | Aizawl, Mizoram | 57 |
| 9 | Kishanganj, Bihar | 59 |
| 10 | Vijayapura, Karnataka | 62 |
AQI in all cities of India
Frequently Asked Questions
Which AQI is best?
What are the criteria for AQI?
AQI criteria include measuring the concentration of pollutants like PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide, carbon monoxide, and ammonia over a specified averaging period.
What are the 8 parameters of AQI?
The 8 parameters of AQI are: Particulate Matter (PM10), Particulate Matter (PM2.5), Ozone (O3), Nitrogen Dioxide (NO2), Sulphur Dioxide (SO2), Carbon Monoxide (CO), Ammonia (NH3), and Lead (Pb).
What are the 6 categories of AQI?
The 6 categories of AQI are: 0-50: Good, 51-100: Moderate, 101-200: Poor, 201-300: Unhealthy, 301-400: Severe, 401-500+: Hazardous



















