A good AQI level is between 0 and 50, indicating air quality that poses little or no risk to health.
AQI in Ujjain Today (Sunday, January 11) - Air Quality in Ujjain
As of Today, Ujjain AQI level is 223 which is recorded as Unhealthy category. This level is 166 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.
Ujjain's AQI
Ujjain WeatherSunday Jan 11
Last 7 Days AQI
| Dates | City, States | AQI |
|---|---|---|
| January 11, 2026 | Ujjain, Madhya Pradesh | 223 |
| May 04, 2025 | Ujjain, Madhya Pradesh | 57 |
| May 03, 2025 | Ujjain, Madhya Pradesh | 77 |
| May 02, 2025 | Ujjain, Madhya Pradesh | 63 |
| April 30, 2025 | Ujjain, Madhya Pradesh | 72 |
| April 29, 2025 | Ujjain, Madhya Pradesh | 61 |
| April 28, 2025 | Ujjain, Madhya Pradesh | 62 |
Changes in AQI in Last 7 Days
Most Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Ghaziabad, Uttar Pradesh | 351 |
| 2 | Gurugram, Haryana | 349 |
| 3 | Noida, Uttar Pradesh | 348 |
| 4 | Delhi, Delhi | 346 |
| 5 | Greater Noida, Uttar Pradesh | 338 |
| 6 | Tonk, Rajasthan | 322 |
| 7 | Narnaul, Haryana | 322 |
| 8 | Sikar, Rajasthan | 314 |
| 9 | Bundi, Rajasthan | 292 |
| 10 | Dharuhera, Haryana | 291 |
Least Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Shillong, Meghalaya | 9 |
| 2 | Gangtok, Sikkim | 20 |
| 3 | Chikkamagaluru, Karnataka | 35 |
| 4 | Vijayapura, Karnataka | 42 |
| 5 | Madikeri, Karnataka | 44 |
| 6 | Thanjavur, TamilNadu | 45 |
| 7 | Kalaburagi, Karnataka | 46 |
| 8 | Silchar, Assam | 47 |
| 9 | Dindigul, TamilNadu | 47 |
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


















