AQI in KATIHAR Today (Saturday, February 28) - Air Quality in KATIHAR
As of Today, Katihar AQI level is 78 which is recorded as Moderate category. This level is 1 point(s) lower 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.
Katihar WeatherSaturday Feb 28
Last 7 Days AQI
Updated: February 28, 2026| Dates | City, States | AQI |
|---|---|---|
| February 28, 2026 | Katihar, Bihar | 78 |
| February 27, 2026 | Katihar, Bihar | 79 |
| February 26, 2026 | Katihar, Bihar | 81 |
| February 25, 2026 | Katihar, Bihar | 82 |
| February 24, 2026 | Katihar, Bihar | 87 |
| February 23, 2026 | Katihar, Bihar | 57 |
| February 21, 2026 | Katihar, Bihar | 78 |
Most Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Charkhi Dadri, Haryana | 288 |
| 2 | Ballabgarh, Haryana | 277 |
| 3 | Angul, Odisha | 275 |
| 4 | Manesar, Haryana | 268 |
| 5 | Agartala, Tripura | 263 |
| 6 | Mandi Gobindgarh, Punjab | 252 |
| 7 | Bhiwadi, Rajasthan | 244 |
| 8 | Gurugram, Haryana | 242 |
| 9 | Dharuhera, Haryana | 241 |
| 10 | Cuttack, Odisha | 240 |
Least Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Madikeri, Karnataka | 23 |
| 2 | Kolhapur, Maharashtra | 34 |
| 3 | Shillong, Meghalaya | 42 |
| 4 | Panchkula, Haryana | 45 |
| 5 | Bhilai, Chhattisgarh | 46 |
| 6 | Sangli, Maharashtra | 47 |
| 7 | Chamarajanagar, Karnataka | 48 |
| 8 | Chikkamagaluru, Karnataka | 48 |
| 9 | Dhule, Maharashtra | 50 |
AQI in all cities of India
Frequently Asked Questions
Which AQI is best?
A good AQI level is between 0 and 50, indicating air quality that poses little or no risk to health.
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