El Dorado Hills, CA
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.
El Dorado Hills, CA air quality summary: El Dorado Hills, CA, maintains a clean air score of 84.4 and a grade of B. The city's measured annual PM2.5 mean is 5.8 µg/m³. El Dorado Hills records an annual PM2.5 mean of 5.8 µg/m³, which is considered moderate for long-term exposure. Air quality trends in El Dorado Hills have remained neutral over recent years.
Clean Air Score
The clean air score of 84.4 and B grade reflect favorable long-term air quality conditions. These levels are indicative of a generally clean environment relative to regional particulate averages.
🏡 What This Means for Buying
Prospective residents may consider El Dorado Hills' stable air quality as a positive indicator for long-term residency. These metrics provide a factual baseline for environmental research during a property search.
Indoor Air Quality in El Dorado Hills, CA
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 El Dorado Hills.
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 El Dorado Hills:
- 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
See how El Dorado Hills's air quality affects you and your family specifically.
Health Advice
Enjoy the outdoors! Air quality is great.
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</> Create Free Widget🏡 Property Value Impact Analysis
Between 2019 and 2024, El Dorado Hills's air quality improved by 0.4 μg/m³. Based on NBER studies, this change correlates with a estimated 1.6% increase in relative property value retention.
Cleaner Alternatives in CA
Why El Dorado Hills earned a 84.4
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% | 88.1 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 50 |
| Seasonal Variability | 10% | 91.7 |
| 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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El Dorado Hills Air Quality FAQs
Is El Dorado Hills a good fit for people who care about long-term air quality?
El Dorado Hills holds a clean air score of 84.4 and a grade of B, which reflects generally positive air quality. The annual PM2.5 mean of 5.8 µg/m³ is consistent with these favorable conditions.
What is the frequency of unhealthy air or long-term pollution exposure in El Dorado Hills?
El Dorado Hills reports 0% of days reach unhealthy particulate levels, which is reflected in its B grade. The annual PM2.5 average of 5.8 µg/m³ serves as the daily exposure baseline for residents.
Is air quality improving or getting worse over time in El Dorado Hills?
The long-term air quality trend in El Dorado Hills is neutral, indicating limited significant change over the monitored period.
Does air quality vary across different parts of El Dorado Hills?
Air quality can vary within the city due to local traffic, industry, and location patterns, although specific neighborhood details are not analyzed here.