East Hill-Meridian, 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.
East Hill-Meridian, WA air quality summary: East Hill-Meridian, WA has a clean air score of 78.5 and a grade of B. The annual mean concentration of PM2.5 is 6.9 micrograms per cubic meter. East Hill-Meridian maintains an annual mean PM2.5 concentration of 6.9 micrograms per cubic meter. Air quality trends in East Hill-Meridian are described as improving over recent years based on recent historical data.
Clean Air Score
A clean air score of 78.5 reflects a B grade based on long-term particulate matter exposure levels. This assessment indicates the overall air quality conditions for residents over an extended period.
🏡 What This Means for Buying
When considering a move to East Hill-Meridian, air quality should be evaluated as one factor in a broader housing or relocation decision. Long-term environmental conditions provide context for residential suitability and quality of life.
Indoor Air Quality in East Hill-Meridian, 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 East Hill-Meridian.
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 East Hill-Meridian:
- 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 East Hill-Meridian Homes:
🩺 My Health Risk Assessment
See how East Hill-Meridian's air quality affects you and your family specifically.
Health Advice
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</> Create Free Widget🏡 Property Value Impact Analysis
Between 2020 and 2024, East Hill-Meridian's air quality improved by 4.4 μg/m³. Based on NBER studies, this change correlates with a estimated 15% increase in relative property value retention.
Cleaner Alternatives in WA
Why East Hill-Meridian earned a 78.5
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% | 73.2 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 72 |
| Seasonal Variability | 10% | 92.6 |
| 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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East Hill-Meridian Air Quality FAQs
Is East Hill-Meridian a good fit for people who care about long-term air quality?
East Hill-Meridian has a clean air score of 78.5 and a grade of B, reflecting its long-term atmospheric conditions. The annual mean PM2.5 concentration is 6.9, which is a key metric for evaluating residential air quality.
How often does East Hill-Meridian experience unhealthy air or long-term pollution exposure?
In East Hill-Meridian, unhealthy air days occur approximately 0.0% of the time annually. This frequency contributes to the overall B grade and annual PM2.5 mean of 6.9.
Is air quality in East Hill-Meridian improving or getting worse over time?
The long-term air quality trend in East Hill-Meridian is improving over recent years. Data completeness for this assessment is 98.4%, providing a solid basis for this trend analysis.
Does air quality vary significantly within East Hill-Meridian?
While the city-wide average provides a general overview, air quality can vary based on proximity to local traffic, industry, and geographical features. These patterns exist throughout the city regardless of specific district boundaries.