A good AQI level is between 0 and 50, indicating air quality that poses little or no risk to health.
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AQI in Thrissur Today (Tuesday, July 29) - Air Quality in Thrissur
As of Today, Thrissur AQI level is 45 which is recorded as Good 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.
Thrissur's AQI
Thrissur WeatherTuesday Jul 29
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Last 7 Days AQI
| Dates | City, States | AQI |
|---|---|---|
| July 29, 2025 | Thrissur, Kerala | 45 |
| July 28, 2025 | Thrissur, Kerala | 45 |
| July 27, 2025 | Thrissur, Kerala | 44 |
| July 26, 2025 | Thrissur, Kerala | 47 |
| July 25, 2025 | Thrissur, Kerala | 47 |
| July 24, 2025 | Thrissur, Kerala | 46 |
| July 23, 2025 | Thrissur, Kerala | 44 |
Source : Central Pollution Control Board
Changes in AQI in Last 7 Days
Source: Central Pollution Control Board
Updated: July 29, 2025 | 12:57 AM
Most Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Agartala, Tripura | 254 |
| 2 | Gorakhpur, Uttar Pradesh | 227 |
| 3 | Sri Ganganagar, Rajasthan | 191 |
| 4 | Byrnihat, Assam | 149 |
| 5 | Churu, Rajasthan | 121 |
| 6 | Chhapra, Bihar | 114 |
| 7 | Baran, Rajasthan | 114 |
| 8 | Baddi, Himachal Pradesh | 113 |
| 9 | Jaisalmer, Rajasthan | 99 |
| 10 | Visakhapatnam, Andhra Pradesh | 96 |
Source : Central Pollution Control Board
Least Polluted City/States in India
| Rank | City, States | AQI |
|---|---|---|
| 1 | Aizawl, Mizoram | 10 |
| 2 | Madikeri, Karnataka | 17 |
| 3 | Kishanganj, Bihar | 19 |
| 4 | Sivasagar, Assam | 20 |
| 5 | Dehradun, Uttarakhand | 22 |
| 6 | Chikkaballapur, Karnataka | 22 |
| 7 | Katihar, Bihar | 22 |
| 8 | Shillong, Meghalaya | 23 |
| 9 | Chittorgarh, Rajasthan | 24 |
| 10 | Naharlagun, Arunachal Pradesh | 24 |
Source : Central Pollution Control Board
AQI In Indian Cities
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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
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