Worst air pollution Hohhot, today and tomorrow
Today (10 August): Air quality in Hohhot is poor. AQI and O3 are poor; NO2, SO2, and PM1 are fair; PM2.5, PM10, CO, and HCHO are good. Pollution peaks around 4:00 PM (O3: 75.1/100).
Tomorrow (11 August 2026): Air quality in Hohhot is very poor. AQI worsens to very poor; PM2.5 increases to fair; O3 increases to very poor; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 92.1/100). 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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Hohhot's air quality reflects the Inner Mongolia Dahei River basin's flat steppe at 1,063 metres, with vehicle traffic on surrounding expressways and the steel, dairy — Hohhot being China's dairy capital — and chemical corridor contributing local sources. Windblown Mongolian and Inner Mongolian steppe dust generates elevated PM10 during spring dust storms, while winter coal heating under anticyclonic inversions compounds dust and industrial emissions and Hohhot generally maintains moderate to elevated Inner Mongolian capital readings throughout the year.
Today - 10 August | Pollution peaks at 16:00
AQI:
Poor
75.1/100
PM2.5 (fine particles):
Good
17.7/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Fair
27.4/100
O3 (ozone):
Poor
75.1/100
SO2 (sulfur dioxide):
Fair
27.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Fair
23.4/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 15:00
AQI:
Very poor
92.1/100
PM2.5 (fine particles):
Fair
21.2/100
PM10 (coarse particles):
Good
5.7/100
NO2 (nitrogen dioxide):
Fair
32.4/100
O3 (ozone):
Very poor
92.1/100
SO2 (sulfur dioxide):
Fair
33.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Fair
27.4/100
Frequently Asked Questions
Is air quality bad in Hohhot right now?
On 10 August 2026, overall air quality in Hohhot is poor. AQI is the main air quality indicator at 75.1/100. Pollution peaks around 4:00 PM (O3: 75.1/100).
Will air quality be worse tomorrow in Hohhot?
On 11 August 2026, air quality conditions in Hohhot will be worse than today, with AQI forecast at very poor at 92.1/100. Pollution peaks around 3:00 PM (O3: 92.1/100).
When is air pollution at its worst in Hohhot?
Air quality in Hohhot tends to be worse when traffic emissions and petrochemical and refining operations build up and calm, stagnant conditions settle in the surrounding valley. Topographic enclosure in the valley lets pollution accumulate rather than clear out. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher.
Are air quality levels in Hohhot 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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