A good AQI level is between 0 and 50, indicating air quality that poses little or no risk to health.
AQI in Howrah Today (Friday, May 15) - Air Quality in Howrah
As of Today, Howrah AQI level is 72 which is recorded as Moderate category. This level is 22 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.
Howrah's AQI
Howrah WeatherFriday May 15
Last 7 Days AQI
| Dates | City, States | AQI |
|---|---|---|
| May 15, 2026 | Howrah, West Bengal | 72 |
| May 14, 2026 | Howrah, West Bengal | 50 |
| May 13, 2026 | Howrah, West Bengal | 50 |
| May 12, 2026 | Howrah, West Bengal | 57 |
| May 11, 2026 | Howrah, West Bengal | 71 |
| May 10, 2026 | Howrah, West Bengal | 76 |
| May 09, 2026 | Howrah, West Bengal | 54 |
Changes in AQI in Last 7 Days
Most Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Sirsa, Haryana | 291 |
| 2 | Bikaner, Rajasthan | 291 |
| 3 | Baddi, Himachal Pradesh | 290 |
| 4 | Jaisalmer, Rajasthan | 270 |
| 5 | Panchgaon, Haryana | 267 |
| 6 | Noida, Uttar Pradesh | 242 |
| 7 | Damoh, Madhya Pradesh | 227 |
| 8 | Ghaziabad, Uttar Pradesh | 224 |
| 9 | Katni, Madhya Pradesh | 222 |
| 10 | Angul, Odisha | 215 |
Least Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Aizawl, Mizoram | 26 |
| 2 | Gadag, Karnataka | 27 |
| 3 | Bhilai, Chhattisgarh | 30 |
| 4 | Fatehabad, Haryana | 32 |
| 5 | Saharsa, Bihar | 34 |
| 6 | Madikeri, Karnataka | 34 |
| 7 | Mira-Bhayandar, Maharashtra | 35 |
| 8 | Raipur, Chhattisgarh | 36 |
| 9 | Rishikesh, Uttarakhand | 37 |
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




















