Worst air pollution Patna, today and tomorrow
Today (16 July): Air quality in Patna is poor. AQI and O3 are poor; PM10 is fair; PM2.5, NO2, SO2, and PM1 are medium; CO and HCHO are good. Pollution peaks around 3:30 PM (O3: 67.2/100).
Tomorrow (17 July 2026): Air quality in Patna is fair. AQI improves to medium; PM10 decreases to good; O3 decreases to medium; SO2 increases to fair; all other pollutants stay as today. Pollution peaks around 12:30 AM (NO2: 55.4/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Patna's air quality reflects the flat Bihar Ganga River plain at 53 metres, with vehicle traffic on surrounding expressways and the agricultural, brick kiln, and industrial corridor contributing elevated PM2.5. The dry winter northeast monsoon concentrates Bihar Gangetic Plain emissions extensively from October to March, while the flat alluvial terrain's minimal topographic dispersal maintains Patna among India's more persistently challenged Gangetic Plain provincial capital environments throughout the dry season months.
Today - 16 July | Pollution peaks at 15:30
AQI:
Poor
67.2/100
PM2.5 (fine particles):
Medium
45.8/100
PM10 (coarse particles):
Fair
22.6/100
NO2 (nitrogen dioxide):
Medium
59.3/100
O3 (ozone):
Poor
67.2/100
SO2 (sulfur dioxide):
Medium
40.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.0/100
PM1 (ultrafine particles):
Medium
50.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 00:30
AQI:
Medium
55.4/100
PM2.5 (fine particles):
Medium
45.8/100
PM10 (coarse particles):
Good
18.7/100
NO2 (nitrogen dioxide):
Medium
55.4/100
O3 (ozone):
Medium
44.3/100
SO2 (sulfur dioxide):
Fair
33.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.5/100
PM1 (ultrafine particles):
Medium
50.6/100
Frequently Asked Questions
Is air quality bad in Patna right now?
On 16 July 2026, overall air quality in Patna is poor. AQI is the main air quality indicator at 67.2/100. Pollution peaks around 3:30 PM (O3: 67.2/100).
Will air quality be worse tomorrow in Patna?
On 17 July 2026, air quality conditions in Patna will be better than today, with SO2 forecast at fair at 33.9/100. Pollution peaks around 12:30 AM (NO2: 55.4/100).
When is air pollution at its worst in Patna?
Air quality in Patna tends to be worse when road traffic, light manufacturing, as well as agricultural burning build up and dry spells bring strong winds. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. Rains during the wetter months typically wash pollutants out of the air.
Are air quality levels in Patna based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app