Worst air pollution Kalyān, today and tomorrow
Today (10 August): Air quality in Kalyān is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:30 PM (NO2: 27.5/100).
Tomorrow (11 August 2026): Air quality in Kalyān is fair. O3 decreases to good; all other pollutants stay as today. Pollution peaks around 7:30 PM (NO2: 29.9/100). 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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Kalyān's air quality reflects the greater Mumbai metropolitan area's northeastern Ulhas River valley corridor, with vehicle traffic on surrounding expressways and the manufacturing, textile, and dense urban residential corridor generating elevated PM2.5 and NOₓ. The Arabian Sea monsoon provides wet season cleansing, while the dry northeast monsoon concentrates Mumbai metropolitan and industrial emissions and the northeastern corridor's industrial density maintains Kalyan among Maharashtra's more persistently challenged urban environments throughout the dry season.
Today - 10 August | Pollution peaks at 21:30
AQI:
Fair
27.5/100
PM2.5 (fine particles):
Good
14.3/100
PM10 (coarse particles):
Good
6.8/100
NO2 (nitrogen dioxide):
Fair
27.5/100
O3 (ozone):
Fair
24.6/100
SO2 (sulfur dioxide):
Good
19.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.0/100
PM1 (ultrafine particles):
Good
14.1/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 19:30
AQI:
Fair
29.9/100
PM2.5 (fine particles):
Good
12.3/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Fair
29.9/100
O3 (ozone):
Good
12.7/100
SO2 (sulfur dioxide):
Good
18.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.1/100
PM1 (ultrafine particles):
Good
11.9/100
Frequently Asked Questions
Is air quality bad in Kalyān right now?
On 10 August 2026, overall air quality in Kalyān is fair. AQI is the main air quality indicator at 27.5/100. Pollution peaks around 9:30 PM (NO2: 27.5/100).
Will air quality be worse tomorrow in Kalyān?
On 11 August 2026, air quality conditions in Kalyān will be similar to today, with AQI forecast at fair at 29.9/100. Pollution peaks around 7:30 PM (NO2: 29.9/100).
When is air pollution at its worst in Kalyān?
In Kalyān, traffic emissions together with textile and manufacturing operations are the main local sources, with conditions worsening when dry, windy weather picks up. These wind events can carry dust in from the surrounding arid landscape. Rains during the wetter months typically wash pollutants out of the air.
Are air quality levels in Kalyān 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 10 August 2026 at 02:34 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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