Worst air pollution Leshan, today and tomorrow
Today (16 July): Air quality in Leshan is poor. AQI and O3 are poor; PM2.5, NO2, and PM1 are fair; PM10, SO2, CO, and HCHO are good. Pollution peaks around 5:00 PM (O3: 75.0/100).
Tomorrow (17 July 2026): Air quality in Leshan is poor. PM2.5 decreases to good; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 60.2/100). 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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Leshan's air quality reflects the Sichuan Basin's Dadu River and Min River confluence adjacent to the famous Giant Buddha site, with vehicle traffic on surrounding expressways and the tourism, chemical, and manufacturing corridor contributing local sources. The Sichuan Basin's topographic enclosure creates concentration under winter inversions, while the Giant Buddha sacred site's tourism concentration creates seasonal vehicle peaks and Leshan generally maintains moderate Sichuan Basin provincial readings throughout most of the year.
Today - 16 July | Pollution peaks at 17:00
AQI:
Poor
75.0/100
PM2.5 (fine particles):
Fair
20.2/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Fair
23.9/100
O3 (ozone):
Poor
75.0/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.0/100
PM1 (ultrafine particles):
Fair
26.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Poor
60.2/100
PM2.5 (fine particles):
Good
14.9/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Fair
20.5/100
O3 (ozone):
Poor
60.2/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.4/100
PM1 (ultrafine particles):
Fair
20.8/100
Frequently Asked Questions
Is air quality bad in Leshan right now?
On 16 July 2026, overall air quality in Leshan is poor. AQI is the main air quality indicator at 75.0/100. Pollution peaks around 5:00 PM (O3: 75.0/100).
Will air quality be worse tomorrow in Leshan?
On 17 July 2026, air quality conditions in Leshan will be similar to today, with AQI forecast at poor at 60.2/100. Pollution peaks around 2:00 PM (O3: 60.2/100).
When is air pollution at its worst in Leshan?
Leshan usually sees its poorest air quality when traffic emissions, petrochemical and refining operations, together with manufacturing and food processing coincide with periods when the surrounding valley traps air close to the ground. The surrounding valley terrain holds pollutants near the surface rather than letting them disperse. This is most pronounced in winter, when inversions are more frequent.
Are air quality levels in Leshan 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