Worst air pollution Pike Place Market - Seattle, today and tomorrow
Today (15 July): Air quality in Pike Place Market 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 Pike Place Market 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 Pike Place Market air quality reflects the downtown Seattle waterfront position, with vehicle traffic on Pike Street and the concentrated tourist market character generating elevated NOₓ. The Elliott Bay maritime breezes provide ventilation from the west, while the neighbourhood's walkable market character and the waterfront's open geometry generally maintain moderate Seattle metropolitan readings and summer wildfire smoke from Pacific Northwest forests is the primary seasonal concern throughout the year.
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
28.0/100
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
16.5/100
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
11.4/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Fair
21.1/100
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
14.0/100
Other Landmarks in Seattle
Sports venues in Seattle
Frequently Asked Questions
Is air quality bad in Pike Place Market right now?
On 15 July 2026, overall air quality in Pike Place Market is fair. NO2 is the main pollutant at 28.0/100. Pollution peaks around 7:00 AM (O3: 52.9/100).
Will air quality be worse tomorrow in Pike Place Market?
On 16 July 2026, air quality conditions in Pike Place Market will be similar to today, with NO2 forecast at fair at 21.1/100. Pollution peaks around 4:00 AM (O3: 51.8/100).
When is air pollution at its worst in Pike Place Market?
Pike Place Market's air quality follows a clear seasonal pattern. Typically, winter and spring bring the cleanest air, as frequent rain and consistent onshore wind clear pollution quickly, while August and September wildfire smoke can dominate the season, occasionally driving particulate levels sharply higher for several days. Coastal areas see relatively little of the smoke that can settle into inland valleys during fire season.
Are air quality levels in Pike Place Market 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