Worst air pollution Sanzhou, today and tomorrow
Today (16 July): Air quality in Sanzhou is poor. AQI and O3 are poor; PM2.5, HCHO, and PM1 are fair; NO2 is medium; PM10, SO2, and CO are good. Pollution peaks around 2:00 PM (O3: 68.6/100).
Tomorrow (17 July 2026): Air quality in Sanzhou is poor. PM2.5 decreases to good; NO2 increases to fair; HCHO decreases to good; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 62.2/100). 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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Sanzhou's air quality reflects the Chongqing metropolitan area's Three Gorges corridor along the Yangtze River, with vehicle traffic on surrounding expressways and the agricultural and manufacturing corridor contributing local sources. The Sichuan Basin's topographic enclosure and the Yangtze gorge corridor's complex wind channelling influence dispersal, while winter inversions and the broader Chongqing metropolitan industrial background maintain moderate Chongqing metropolitan eastern corridor readings throughout most of the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Poor
68.6/100
PM2.5 (fine particles):
Fair
25.2/100
PM10 (coarse particles):
Good
6.9/100
NO2 (nitrogen dioxide):
Medium
44.4/100
O3 (ozone):
Poor
68.6/100
SO2 (sulfur dioxide):
Good
5.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
22.1/100
PM1 (ultrafine particles):
Fair
32.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Poor
62.2/100
PM2.5 (fine particles):
Good
16.8/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Fair
34.3/100
O3 (ozone):
Poor
62.2/100
SO2 (sulfur dioxide):
Good
4.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.8/100
PM1 (ultrafine particles):
Fair
22.9/100
Frequently Asked Questions
Is air quality bad in Sanzhou right now?
On 16 July 2026, overall air quality in Sanzhou is poor. AQI is the main air quality indicator at 68.6/100. Pollution peaks around 2:00 PM (O3: 68.6/100).
Will air quality be worse tomorrow in Sanzhou?
On 17 July 2026, air quality conditions in Sanzhou will be similar to today, with AQI forecast at poor at 62.2/100. Pollution peaks around 3:00 PM (O3: 62.2/100).
When is air pollution at its worst in Sanzhou?
Air quality in Sanzhou tends to be worse when road traffic, manufacturing and food processing, along with crop farming build up and temperature inversions set in over the valley. The bowl-like terrain here limits how quickly pollutants can escape. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher.
Are air quality levels in Sanzhou 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