Howrah air quality · West Bengal, India
After rain, readings often drop sharply within an hour
NAQI 89 (Satisfactory) in Howrah, from 5 CPCB monitoring stations. On the US scale that is 140 (Unhealthy for Sensitive Groups).
Updated
Pollutants in Howrah
- PM2.5 · µg/m³53.73.6× WHO limit
- PM10 · µg/m³96.72.1× WHO limit
- NO₂ · µg/m³21.1Under WHO limit
- O₃ · µg/m³37.0
- SO₂ · µg/m³9.2Under WHO limit
- CO · mg/m³0.63
Concentrations averaged across the city's stations. WHO multiples use the 2021 24-hour guidelines.
Is it safe outside in Howrah right now?
May cause minor breathing discomfort to sensitive people.
Walking and commuting
Go aheadFine for everyone.
Running and jogging
Take careFine for most; unusually sensitive people should ease the pace.
Cycling
Go aheadFine for everyone.
Children playing outside
Go aheadNo limits for most children.
Older adults and heart or lung conditions
Take careWatch for symptoms such as coughing or breathlessness.
Open windows
Go aheadFine to ventilate.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededOptional.
Based on the US EPA Air Quality Guide, applied to the current NAQI category. If you have symptoms, follow your doctor's advice.
What US AQI 101–150 means for your health →
Air quality by area in Howrah
5 stations, worst first- Botanical GardenModerate132
- PadmapukurModerate112
- GhusuriModerate106
- Belur MathModerate105
- DasnagarSatisfactory58
Howrah air quality history
Daily average, 37 days- 90average daily NAQI over 37 days
- 142worst day, 3 October
- 31cleanest day, 24 September
- 0days at Poor or worse
The last 7 days averaged 91, better than the week before (114). 7 of the last 37 days were Good.
Nearby cities
India rankingRelated reading
Howrah air quality: common questions
What is the AQI in Howrah right now?
The NAQI in Howrah is 89 (Satisfactory), based on 5 monitoring stations. On the US AQI scale the same air reads 140 (Unhealthy for Sensitive Groups).
Is it safe to go outside in Howrah today?
Fine for most people. May cause minor breathing discomfort to sensitive people. For runners: Fine for most; unusually sensitive people should ease the pace.
Which area of Howrah has the worst air right now?
Botanical Garden has the highest reading at 132 (Moderate). Dasnagar has the lowest at 58, out of 5 stations reporting.
How has air quality in Howrah been recently?
Over the last 37 days with data, Howrah averaged NAQI 90. The worst day was 3 October at 142; the cleanest was 24 September at 31. 0 days were at Poor or worse.
How does Howrah's PM2.5 compare with the WHO guideline?
PM2.5 is 54 µg/m³, about 3.6 times the World Health Organization's 24-hour guideline of 15 µg/m³.
Where does Howrah's air quality data come from?
From State & Central Pollution Control Board, Government of India · Center for Study of Science, Technology and Policy (CSTEP) · Aurassure's University Clean Air Network, using 5 monitoring stations in and around the city. Good Air does not estimate or adjust these readings.
Source: State & Central Pollution Control Board, Government of India · Center for Study of Science, Technology and Policy (CSTEP) · Aurassure's University Clean Air Network. Readings are published by the monitoring agency and may be revised.