Worst air pollution Lévis, today and tomorrow
Today (16 July): Air quality in Lévis is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (O3: 48.7/100).
Tomorrow (17 July 2026): Air quality in Lévis is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 34.1/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Lévis' air quality benefits from its St. Lawrence River shoreline position across from Quebec City, with river breezes providing reasonable ventilation. Vehicle traffic on Highway 20 is the primary source.
Today - 16 July | Pollution peaks at 06:00
AQI:
Medium
48.7/100
PM2.5 (fine particles):
Good
12.1/100
PM10 (coarse particles):
Good
4.4/100
NO2 (nitrogen dioxide):
Good
16.3/100
O3 (ozone):
Medium
48.7/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.4/100
PM1 (ultrafine particles):
Good
14.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 11:00
AQI:
Fair
34.1/100
PM2.5 (fine particles):
Good
8.0/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Good
13.6/100
O3 (ozone):
Fair
34.1/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.0/100
PM1 (ultrafine particles):
Good
9.8/100
Pollen forecast in Lévis
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Lévis
Frequently Asked Questions
Is air quality bad in Lévis right now?
On 16 July 2026, overall air quality in Lévis is medium. AQI is the main air quality indicator at 48.7/100. Pollution peaks around 6:00 AM (O3: 48.7/100).
Will air quality be worse tomorrow in Lévis?
On 17 July 2026, air quality conditions in Lévis will be worse than today, with AQI forecast at fair at 34.1/100. Pollution peaks around 11:00 AM (O3: 34.1/100).
When is air pollution at its worst in Lévis?
Air quality in Lévis shifts noticeably across the seasons, shaped by its riverside setting across the St. Lawrence from Quebec City. The warmest months typically see the poorest air quality, with heat and heavy traffic driving up smog levels on windless days, whereas fall and winter tend to bring cleaner, more variable conditions. The surrounding Greenbelt helps buffer some neighbourhoods, though downtown corridors still see the sharpest seasonal shifts.
Are air quality levels in Lévis 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