Calcutta Air Quality Index & Realtime Air Pollution
Current Conditions
Humidity: 85%
Primary Air Pollutants Calcutta (West Bengal)
| Pollutant | Concentration | Details |
|---|---|---|
| PM2.5 | 41 µg/m³ | Fine particles |
| PM10 | 49 µg/m³ | Coarse particles |
| SO₂ | 8 µg/m³ | Sulphur dioxide |
| CO | 346 µg/m³ | Carbon monoxide |
| NO₂ | 13 µg/m³ | Nitrogen dioxide |
| O₃ | 66 µg/m³ | Ozone |
Hourly forecast Calcutta (West Bengal)
| Time | Temp | Condition |
|---|---|---|
| Now | 29°C |  Thunderstorm |
| 01:00 | 29°C | Thunderstorm |
| 02:00 | 28°C | Thunderstorm |
| 03:00 | 28°C | Thunderstorm |
| 04:00 | 28°C | Thunderstorm |
| 05:00 | 28°C |  Thunderstorm |
| 06:00 | 30°C | Thunderstorm |
| 07:00 | 31°C | Thunderstorm |
| 08:00 | 32°C | Thunderstorm |
| 09:00 | 34°C | Thunderstorm |
| 10:00 | 35°C | Thunderstorm |
| 11:00 | 35°C | Thunderstorm |
| 12:00 | 31°C |  Thunderstorm with heavy hail |
| 13:00 | 31°C | Thunderstorm |
| 14:00 | 33°C | Thunderstorm |
| 15:00 | 32°C | Thunderstorm |
| 16:00 | 31°C |  Thunderstorm with slight hail |
| 17:00 | 27°C | Thunderstorm with heavy hail |
| 18:00 | 27°C |  Slight rain showers |
| 19:00 | 28°C | Thunderstorm |
| 20:00 | 28°C | Thunderstorm |
| 21:00 | 28°C |  Overcast |
| 22:00 | 28°C |  Mostly clear |
| 23:00 | 28°C | Thunderstorm |
Health Recommendations
Based on current air quality: Poor · AQI 114
- Air PurifierTurn On
- Car FilterMust
- N95 MaskMust
- Stay IndoorMust
Members of sensitive groups (children, elderly, and people with heart/lung disease) may experience health effects. The general public is unlikely to be affected immediately, but should monitor physical comfort.
1.9 per day
Equates to breathing local air
13.3 cigarettes
57 cigarettes
Prevent Health Problems
Risk is Elevated for Poor conditions (AQI 114).
Typical signs can include: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.
- Choose indoor, clean indoor air when the AQI is elevated.
- Stay hydrated and take short breaks from devices or harsh light if you are migraine-prone.
- If you Make use of prescribed migraine meds, Keep close them accessible.
- Try not to do intense outdoor exercise during worse AQI periods.
- Don’t ignore worsening symptoms that feel unusual for you.
Historical AQI Data Calcutta (West Bengal)
Air Quality FAQs at Calcutta, West Bengal
Frequently Asked Questions
About Air Quality
The current real-time AQI (US) level in Calcutta, West Bengal is 114 (Poor). This was last updated recently.
The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.
The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.
The AQI (US) levels in Calcutta, West Bengal have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.
Current AQI (US) levels are poor for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.
Recent AQI Blogs
Read all blogsHere are some latest blogs that you can go through to find out more about air pollution, heatwaves, and local atmospheric insights.
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Statistical analysis comparing 2026 PM2.5 averages to historical data since 2020, highlighting trends and regulatory impacts.
What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation
A deep dive into 17 years of meteorological recordings to trace the steady rise of summer temperatures and heatwave durations in Delhi NCR.