AQI in HOSUR Today (Sunday, September 28) - Air Quality in HOSUR
As of Today, Hosur AQI level is 56 which is recorded as Moderate category. This level is 1 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.
Hosur WeatherSunday Sep 28
Last 7 Days AQI
Updated: September 27, 2025| Dates | City, States | AQI |
|---|---|---|
| September 27, 2025 | Hosur, TamilNadu | 56 |
| September 26, 2025 | Hosur, TamilNadu | 55 |
| September 25, 2025 | Hosur, TamilNadu | 53 |
| September 24, 2025 | Hosur, TamilNadu | 53 |
| September 23, 2025 | Hosur, TamilNadu | 62 |
| September 22, 2025 | Hosur, TamilNadu | 53 |
| September 21, 2025 | Hosur, TamilNadu | 53 |
Most Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Nandesari, Gujarat | 208 |
| 2 | Bileipada, Odisha | 189 |
| 3 | Greater Noida, Uttar Pradesh | 161 |
| 4 | Muzaffarnagar, Uttar Pradesh | 156 |
| 5 | Jhansi, Uttar Pradesh | 156 |
| 6 | Baddi, Himachal Pradesh | 155 |
| 7 | Ghaziabad, Uttar Pradesh | 146 |
| 8 | Meerut, Uttar Pradesh | 142 |
| 9 | Chhapra, Bihar | 135 |
Least Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Shillong, Meghalaya | 9 |
| 2 | Korba, Chhattisgarh | 16 |
| 3 | Thanjavur, TamilNadu | 19 |
| 4 | Cuddalore, TamilNadu | 20 |
| 5 | Tirupur, TamilNadu | 22 |
| 6 | Hassan, Karnataka | 23 |
| 7 | Gangtok, Sikkim | 24 |
| 8 | Davanagere, Karnataka | 24 |
| 9 | Pudukottai, TamilNadu | 26 |
| 10 | Amaravati, Andhra Pradesh | 27 |
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