Worst air pollution Delta, today and tomorrow
Today (15 July): Air quality in Delta is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 36.0/100).
Tomorrow (16 July 2026): Air quality in Delta is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 6:00 AM (O3: 51.1/100). 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
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Delta's air quality reflects its low-lying delta position, with the Tsawwassen ferry terminal, Deltaport container operations, and Highway 17 traffic contributing local emissions amid open coastal exposure.
Today - 15 July | Pollution peaks at 09:00
AQI:
Fair
36.0/100
PM2.5 (fine particles):
Good
7.0/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Good
12.3/100
O3 (ozone):
Fair
36.0/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.1/100
PM1 (ultrafine particles):
Good
6.4/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 06:00
AQI:
Medium
51.1/100
PM2.5 (fine particles):
Good
7.4/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Good
11.7/100
O3 (ozone):
Medium
51.1/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
7.3/100
Pollen forecast in Delta
View pollen forecastFrequently Asked Questions
Is air quality bad in Delta right now?
On 15 July 2026, overall air quality in Delta is fair. AQI is the main air quality indicator at 36.0/100. Pollution peaks around 9:00 AM (O3: 36.0/100).
Will air quality be worse tomorrow in Delta?
On 16 July 2026, air quality conditions in Delta will be better than today, with AQI forecast at medium at 51.1/100. Pollution peaks around 6:00 AM (O3: 51.1/100).
When is air pollution at its worst in Delta?
Delta's air quality varies through the year, influenced by the farmland and port lands at the mouth of the Fraser River. Summer heat can trap Vancouver's traffic emissions against the valley's surrounding mountains, adding to dust from farm fields, while winter rain generally clears the air. Local dairy and berry farming add a modest, steady contribution on top of the seasonal pattern.
Are air quality levels in Delta 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