Worst air pollution Tongren, today and tomorrow
Today (10 August): Air quality in Tongren is fair. SO2 and PM1 are fair; AQI and O3 are medium; PM2.5, PM10, NO2, CO, and HCHO are good. Pollution peaks around 11:00 AM (O3: 42.0/100).
Tomorrow (11 August 2026): Air quality in Tongren is fair. AQI worsens to fair; NO2 increases to fair; O3 increases to fair; HCHO increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 38.4/100). 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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Tongren's air quality reflects the Guizhou eastern Jinjiang River valley's partial enclosure in the karst highland at 279 metres, with vehicle traffic on surrounding expressways and the manganese mining, mercury legacy, and agricultural corridor contributing elevated heavy metal PM2.5. The surrounding Wuling Mountains create topographic variation, while the historic mercury mining legacy represents Tongren's most distinctive industrial air quality heritage and the karst valley topography creates seasonal concentration throughout the year.
Today - 10 August | Pollution peaks at 11:00
AQI:
Medium
42.0/100
PM2.5 (fine particles):
Good
16.0/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Good
18.0/100
O3 (ozone):
Medium
42.0/100
SO2 (sulfur dioxide):
Fair
27.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.5/100
PM1 (ultrafine particles):
Fair
21.6/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 11:00
AQI:
Fair
38.4/100
PM2.5 (fine particles):
Good
13.8/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Fair
21.4/100
O3 (ozone):
Fair
38.4/100
SO2 (sulfur dioxide):
Fair
27.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.7/100
PM1 (ultrafine particles):
Good
19.6/100
Frequently Asked Questions
Is air quality bad in Tongren right now?
On 10 August 2026, overall air quality in Tongren is fair. SO2 is the main pollutant at 27.9/100. Pollution peaks around 11:00 AM (O3: 42.0/100).
Will air quality be worse tomorrow in Tongren?
On 11 August 2026, air quality conditions in Tongren will be similar to today, with AQI forecast at fair at 38.4/100. Pollution peaks around 11:00 AM (O3: 38.4/100).
When is air pollution at its worst in Tongren?
Tongren usually sees its poorest air quality when traffic emissions, quarrying activity, and farming and agricultural processing coincide with periods when dry spells bring strong winds. These wind events can carry dust in from the surrounding arid landscape. This is most noticeable during spring and autumn wind events.
Are air quality levels in Tongren 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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