Worst air pollution Ballard - Seattle, today and tomorrow
Today (15 July): Air quality in Ballard is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 52.9/100).
Tomorrow (16 July 2026): Air quality in Ballard is fair. All pollutants stay as today. Pollution peaks around 4:00 AM (O3: 51.8/100). 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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Seattle's Ballard records moderate Seattle air quality, with the neighbourhood's mixed residential and light industrial character and traffic on 15th Avenue NW contributing to baseline emissions. The Puget Sound shoreline to the west provides reliable westerly ventilation that keeps Ballard's readings below Seattle's more enclosed inland valley neighbourhoods.
Today - 15 July | Pollution peaks at 07:00
AQI:
Medium
52.9/100
PM2.5 (fine particles):
Good
13.5/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Fair
28.5/100
O3 (ozone):
Medium
52.9/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.5/100
PM1 (ultrafine particles):
Good
16.6/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 04:00
AQI:
Medium
51.8/100
PM2.5 (fine particles):
Good
11.5/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Fair
21.5/100
O3 (ozone):
Medium
51.8/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.5/100
PM1 (ultrafine particles):
Good
14.1/100
Other Landmarks in Seattle
Sports venues in Seattle
Frequently Asked Questions
Is air quality bad in Ballard right now?
On 15 July 2026, overall air quality in Ballard is fair. NO2 is the main pollutant at 28.5/100. Pollution peaks around 7:00 AM (O3: 52.9/100).
Will air quality be worse tomorrow in Ballard?
On 16 July 2026, air quality conditions in Ballard will be similar to today, with NO2 forecast at fair at 21.5/100. Pollution peaks around 4:00 AM (O3: 51.8/100).
When is air pollution at its worst in Ballard?
Ballard's air quality follows a clear seasonal pattern, as spring is often the freshest stretch, sandwiched between winter rain and summer fire season; by contrast, the driest weeks of late summer bring the greatest risk of smoke drifting in from regional wildfires. Coastal areas see relatively little of the smoke that can settle into inland valleys during fire season.
Are air quality levels in Ballard 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.
Want to see air quality forecasts for other cities in United States?
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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