Marysville, WA
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.
Marysville, WA air quality summary: Marysville, WA, holds a clean air score of 72.8 and an overall grade of B. The city's annual mean for PM2.5 is recorded at 7.9. Marysville has an annual PM2.5 mean of 7.9. The long-term air quality in Marysville is improving, showing a positive trajectory over recent years.
Clean Air Score
A clean air score of 72.8 and a B grade reflect moderate long-term air quality in Marysville. These metrics indicate that particulate levels are generally acceptable for most residents over extended periods.
🏡 What This Means for Buying
Prospective homebuyers should view Marysville's long-term air quality data as a relevant environmental factor. These averages provide a factual baseline for assessing the city's atmospheric conditions.
Indoor Air Quality in Marysville, WA
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 Marysville.
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 Marysville:
- 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.
Top Products for Marysville Homes:
🩺 My Health Risk Assessment
See how Marysville's air quality affects you and your family specifically.
Health Advice
Good for most outdoor activities.
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</> Create Free Widget🏡 Property Value Impact Analysis
Between 2019 and 2024, Marysville's air quality improved by 0.7 μg/m³. Based on NBER studies, this change correlates with a estimated 2.8% increase in relative property value retention.
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Why Marysville earned a 72.8
Raw inputs, scoring weights, and data coverage for this city.
Best Time to Run
Find the cleanest hours for your run today.
Cycling Forecast
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📅 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% | 58.8 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 53.5 |
| Seasonal Variability | 10% | 92.8 |
| 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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Marysville Air Quality FAQs
Is Marysville a good fit for people who care about long-term air quality?
Marysville has a clean air score of 72.8 and an overall grade of B. Its PM2.5 annual mean of 7.9 suggests a moderate environment for long-term air quality considerations.
What is the frequency of unhealthy air or long-term pollution exposure in Marysville?
Marysville has an unhealthy days percentage of 0. This lack of unhealthy days is consistent with its B grade and supports its stable annual PM2.5 levels.
Is air quality in Marysville improving or getting worse over time?
Air quality in Marysville is improving. This indicates that long-term particulate levels have been trending downward over the observed period.
Are there specific neighborhoods in Marysville with better or worse air quality?
Air quality can vary between neighborhoods in Marysville. For more localized detail, residents should look into neighborhood-specific or ZIP-level information.