Worst air pollution Peaceful Valley - Spokane, today and tomorrow
Today (15 July): Air quality in Peaceful Valley is fair. PM1 is fair; AQI, NO2, and O3 are medium; PM2.5, PM10, SO2, CO, and HCHO are good. Pollution peaks around 7:00 AM (O3: 52.9/100).
Tomorrow (16 July 2026): Air quality in Peaceful Valley is fair. NO2 increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 4:00 AM (O3: 51.8/100). 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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Spokane's Peaceful Valley air quality reflects the historic Spokane River canyon neighbourhood, with vehicle traffic on the surrounding W Pacific Avenue corridor contributing local sources. The Spokane River gorge's topographic enclosure can concentrate emissions under calm conditions, while the river corridor provides natural ventilation and the neighbourhood's small canyon setting creates distinctive local air quality dynamics with summer wildfire smoke as the primary seasonal concern.
Today - 15 July | Pollution peaks at 07:00
AQI:
Medium
52.9/100
PM2.5 (fine particles):
Good
16.6/100
PM10 (coarse particles):
Good
6.0/100
NO2 (nitrogen dioxide):
Medium
44.1/100
O3 (ozone):
Medium
52.9/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.5/100
PM1 (ultrafine particles):
Fair
20.2/100
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
14.1/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Fair
36.2/100
O3 (ozone):
Medium
51.8/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.5/100
PM1 (ultrafine particles):
Good
17.2/100
Other Landmarks in Spokane
Frequently Asked Questions
Is air quality bad in Peaceful Valley right now?
On 15 July 2026, overall air quality in Peaceful Valley is fair. PM1 is the main pollutant at 20.2/100. Pollution peaks around 7:00 AM (O3: 52.9/100).
Will air quality be worse tomorrow in Peaceful Valley?
On 16 July 2026, air quality conditions in Peaceful Valley will be similar to today, with NO2 forecast at fair at 36.2/100. Pollution peaks around 4:00 AM (O3: 51.8/100).
When is air pollution at its worst in Peaceful Valley?
Air quality around Peaceful Valley changes with the seasons. In short, winter and spring bring the cleanest air, as frequent rain and consistent onshore wind clear pollution quickly, whereas late summer wildfire smoke is the biggest concern, sometimes pushing air quality into unhealthy territory for days at a stretch. Coastal areas see relatively little of the smoke that can settle into inland valleys during fire season.
Are air quality levels in Peaceful Valley 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