Worst air pollution Mashhad, today and tomorrow
Today (9 August): Air quality in Mashhad is very poor. AQI, NO2, SO2, and PM1 are very poor; PM2.5 is poor; PM10 and O3 are medium; CO and HCHO are good. Pollution peaks around 3:30 AM (NO2: 100/100).
Tomorrow (10 August 2026): Air quality in Mashhad is very poor. PM2.5 increases to very poor; O3 increases to poor; all other pollutants stay as today. Pollution peaks around 6:30 AM (PM1: 100/100). 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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Mashhad's air quality reflects the enclosed Kashaf River valley basin at 970 metres surrounded by the Binaloud and Hezar Masjed mountain ranges, with vehicle traffic on surrounding roads and the extraordinary Imam Reza shrine pilgrim traffic, industrial, and heating corridor generating elevated PM2.5. The basin's mountain enclosure creates concentration under winter inversions, while windblown Kavir Desert dust contributes PM10 and Mashhad generally maintains among Iran's more challenged major northeastern provincial capital environments throughout the year.
Today - 9 August | Pollution peaks at 03:30
AQI:
Very poor
100/100
PM2.5 (fine particles):
Poor
79.0/100
PM10 (coarse particles):
Medium
46.1/100
NO2 (nitrogen dioxide):
Very poor
100/100
O3 (ozone):
Medium
52.6/100
SO2 (sulfur dioxide):
Very poor
100/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
9.8/100
PM1 (ultrafine particles):
Very poor
93.3/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 06:30
AQI:
Very poor
100/100
PM2.5 (fine particles):
Very poor
89.5/100
PM10 (coarse particles):
Medium
58.4/100
NO2 (nitrogen dioxide):
Very poor
100/100
O3 (ozone):
Poor
72.6/100
SO2 (sulfur dioxide):
Very poor
100/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
11.1/100
PM1 (ultrafine particles):
Very poor
100/100
Frequently Asked Questions
Is air quality bad in Mashhad right now?
On 9 August 2026, overall air quality in Mashhad is very poor. AQI is the main air quality indicator at 100/100. Pollution peaks around 3:30 AM (NO2: 100/100).
Will air quality be worse tomorrow in Mashhad?
On 10 August 2026, air quality conditions in Mashhad will be similar to today, with AQI forecast at very poor at 100/100. Pollution peaks around 6:30 AM (PM1: 100/100).
When is air pollution at its worst in Mashhad?
Air quality in Mashhad tends to be worse when traffic on the surrounding roads and the surrounding valley traps air close to the ground. Topographic enclosure in the valley lets pollution accumulate rather than clear out. These wind events can carry dust in from the surrounding arid landscape.
Are air quality levels in Mashhad 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: 9 August 2026 at 20:27 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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