A good AQI level is between 0 and 50, indicating air quality that poses little or no risk to health.
AQI in Naharlagun Today (Wednesday, December 24) - Air Quality in Naharlagun
As of Today, Naharlagun AQI level is 120 which is recorded as Poor category. This level is 0 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.
Naharlagun's AQI
Naharlagun WeatherWednesday Dec 24
Last 7 Days AQI
| Dates | City, States | AQI |
|---|---|---|
| December 24, 2025 | Naharlagun, Arunachal Pradesh | 120 |
| December 23, 2025 | Naharlagun, Arunachal Pradesh | 120 |
| December 22, 2025 | Naharlagun, Arunachal Pradesh | 160 |
| December 21, 2025 | Naharlagun, Arunachal Pradesh | 179 |
| December 20, 2025 | Naharlagun, Arunachal Pradesh | 165 |
| December 18, 2025 | Naharlagun, Arunachal Pradesh | 194 |
| December 17, 2025 | Naharlagun, Arunachal Pradesh | 161 |
Changes in AQI in Last 7 Days
Most Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Noida, Uttar Pradesh | 426 |
| 2 | Delhi, Delhi | 412 |
| 3 | Ghaziabad, Uttar Pradesh | 392 |
| 4 | Greater Noida, Uttar Pradesh | 388 |
| 5 | Gurugram, Haryana | 364 |
| 6 | Panchkula, Haryana | 345 |
| 7 | Manesar, Haryana | 343 |
| 8 | Ballabgarh, Haryana | 338 |
| 9 | Bhiwadi, Rajasthan | 336 |
| 10 | Talcher, Odisha | 331 |
Least Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Shillong, Meghalaya | 8 |
| 2 | Damoh, Madhya Pradesh | 22 |
| 3 | Madikeri, Karnataka | 35 |
| 4 | Aizawl, Mizoram | 38 |
| 5 | Chamarajanagar, Karnataka | 41 |
| 6 | Chikkamagaluru, Karnataka | 42 |
| 7 | Shivamogga, Karnataka | 49 |
| 8 | Kalaburagi, Karnataka | 53 |
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


















