Wilsonville, OR
Long-term air quality
What this page tells you
This page combines annual PM2.5, unhealthy days, 5-year trend, and data coverage so you can compare long-term air quality, not just today's reading.
Wilsonville, OR air quality summary: Wilsonville, OR, has an excellent clean air score of 89.3 and a grade of A. The city reports an annual PM2.5 mean of 4.8 micrograms per cubic meter. Wilsonville's annual PM2.5 mean is 4.8, which represents relatively low long-term particulate exposure. Long-term air quality in Wilsonville has been improving over recent years.
Clean Air Score
An 89.3 clean air score and an A grade signify superior long-term air quality. These metrics suggest that residents experience exceptionally low particulate exposure over time.
🏡 What This Means for Buying
Air quality in Wilsonville is a standout feature for long-term residency. The A grade provides high confidence for those prioritizing an environment with minimal particulate pollution.
Indoor Air Quality in Wilsonville, OR
Outdoor pollution can still affect indoor air when windows are open, filtration is weak, or wildfire smoke moves in.
How to react when today's AQI changes
Use the AQI bands below to decide whether to open windows, run an air purifier, or stay indoors when pollution spikes in Wilsonville.
AQI 0-50
GoodOpen windows: Open windows if you want fresh air.
Air purifier: No purifier needed for most homes.
Indoor activity: Normal indoor activity is fine.
AQI 51-100
ModerateOpen windows: Sensitive groups should limit open-window time.
Air purifier: Use fans or filtration if dust or pollen is bothering you.
Indoor activity: Most people can stay active indoors.
AQI 101-150
Unhealthy for Sensitive GroupsOpen windows: Keep windows closed.
Air purifier: Run a HEPA purifier in the main room and bedroom.
Indoor activity: Sensitive groups should reduce outdoor exposure.
AQI 151+
UnhealthyOpen windows: Keep windows and doors closed.
Air purifier: Run HEPA continuously and seal obvious drafts.
Indoor activity: Stay indoors as much as possible; use an N95 if you must go out.
Common indoor air concerns in Wilsonville:
- Wildfire smoke infiltration (PM2.5)
- Seasonal pollen and dust mite allergens
- VOCs from household products
Recommended action: If today's AQI reaches 101 or higher, close windows and run HEPA filtration before indoor air starts to feel smoky or stale.
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🩺 My Health Risk Assessment
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Health Advice
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</> Create Free Widget🏡 Property Value Impact Analysis
Between 2019 and 2024, Wilsonville's air quality improved by 3 μg/m³. Based on NBER studies, this change correlates with a estimated 12% increase in relative property value retention.
Cleaner Alternatives in OR
Why Wilsonville earned a 89.3
Raw inputs, scoring weights, and data coverage for this city.
Best Time to Run
Find the cleanest hours for your run today.
Cycling Forecast
Avoid pollution spikes on your next ride.
📅 Past 30 Days Trend
Real-time daily PM2.5 AQI
🌸 Pollen Outlook
Current Seasonal Forecast
How it worksBased on current seasonal forecast data. Not a long-term pollution rating or relocation score.
Score Breakdown
| Component | Weight | Score Contribution |
|---|---|---|
| Annual Air Quality | 40% | 100 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 65 |
| Seasonal Variability | 10% | 93.3 |
| Extreme Events | 5% | 100 |
Explore More Air Quality Data
Frequently Asked Questions
About This Data
Data Sources
Historical air quality mapping and scoring are based completely on official U.S. Environmental Protection Agency (EPA) AirNow API data. 5-day AQI forecasts are provided by WAQI.
Methodology
Our Clean Air Score (0-100) is a proprietary algorithm that weighs multiple factors:
- Annual PM2.5 averages (40%)
- Frequency of unhealthy days (25%)
- 5-year pollution trends (20%)
- Seasonal variability and extreme events (15%)
Updates & Accuracy
Real-time data is updated hourly. Historical aggregate scores are recalculated monthly to reflect the latest trends. While we strive for accuracy, sensor maintenance and local conditions can affect individual readings.
Practical Advice
When AQI > 100: Sensitive groups (children, elderly, asthmatics) should limit prolonged outdoor exertion.
When AQI > 150: Everyone should avoid outdoor exercise and keep windows closed.
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Wilsonville Air Quality FAQs
Is Wilsonville a good fit for people who care about long-term air quality?
Wilsonville is an outstanding choice for air-quality-conscious residents, with an 89.3 score and an A grade. The annual PM2.5 mean of 4.8 reflects some of the cleanest air in the region.
What is the frequency of unhealthy air exposure in Wilsonville?
Wilsonville maintains a 0% frequency of unhealthy air days, supporting its A grade. This demonstrates a consistent environment free from significant pollution spikes.
Is air quality in Wilsonville improving or getting worse over time?
Air quality in Wilsonville is on an improving trend. The region has consistently moved toward even lower particulate levels in recent years.
Does air quality vary across different parts of Wilsonville?
Air quality can vary within the city due to local traffic, industry, and location patterns. Localized factors like proximity to I-5 should be considered by prospective residents.