Worst air pollution Weichanglu, today and tomorrow
Today (16 July): Air quality in Weichanglu is poor. AQI and O3 are poor; PM2.5 is fair; NO2 and PM1 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 5:00 PM (O3: 73.1/100).
Tomorrow (17 July 2026): Air quality in Weichanglu is fair. AQI improves to medium; PM2.5 decreases to medium; O3 decreases to fair; all other pollutants stay as today. Pollution peaks around 4:00 AM (NO2: 57.4/100). 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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Weichanglu in China reflects the flat North China Plain's agricultural and manufacturing corridor, with vehicle traffic and industrial operations contributing local sources. Winter residential coal heating generates elevated PM2.5 under frequent inversions and the regional North China industrial background consistently elevates winter readings throughout the year.
Today - 16 July | Pollution peaks at 17:00
AQI:
Poor
73.1/100
PM2.5 (fine particles):
Fair
36.5/100
PM10 (coarse particles):
Good
10.9/100
NO2 (nitrogen dioxide):
Medium
45.5/100
O3 (ozone):
Poor
73.1/100
SO2 (sulfur dioxide):
Good
11.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.8/100
PM1 (ultrafine particles):
Medium
41.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 04:00
AQI:
Medium
57.4/100
PM2.5 (fine particles):
Medium
41.1/100
PM10 (coarse particles):
Good
13.2/100
NO2 (nitrogen dioxide):
Medium
57.4/100
O3 (ozone):
Fair
38.7/100
SO2 (sulfur dioxide):
Good
16.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.1/100
PM1 (ultrafine particles):
Medium
43.7/100
Frequently Asked Questions
Is air quality bad in Weichanglu right now?
On 16 July 2026, overall air quality in Weichanglu is poor. AQI is the main air quality indicator at 73.1/100. Pollution peaks around 5:00 PM (O3: 73.1/100).
Will air quality be worse tomorrow in Weichanglu?
On 17 July 2026, air quality conditions in Weichanglu will be better than today, with O3 forecast at fair at 38.7/100. Pollution peaks around 4:00 AM (NO2: 57.4/100).
When is air pollution at its worst in Weichanglu?
Weichanglu usually sees its poorest air quality when traffic emissions, manufacturing and food processing, along with agricultural burning coincide with periods when windblown dust events occur. Dust carried on these winds adds substantially to particulate levels. Residential heating through the colder months is a major seasonal source of particulates.
Are air quality levels in Weichanglu 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.
Check air quality in other popular cities:
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