Silver Spring, MD
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.
Silver Spring, MD air quality summary: Silver Spring, MD, maintains a clean air score of 88.9 and a grade of A. The area features an annual PM2.5 mean of 4.5, reflecting relatively low long-term particulate exposure. In Silver Spring, the annual PM2.5 mean is 4.5, which is characterized as relatively low long-term particulate exposure. The long-term air quality in Silver Spring has been improving over recent years.
Clean Air Score
The clean air score of 88.9 and an A grade indicate that Silver Spring offers high air quality for long-term residency. These metrics suggest particulate levels that are among the lower ranges observed for extended exposure.
🏡 What This Means for Buying
When evaluating Silver Spring, air quality should be considered as one component of a long-term housing decision. The current data reflects a favorable environment for those prioritizing low particulate exposure.
Indoor Air Quality in Silver Spring, MD
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 Silver Spring.
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 Silver Spring:
- 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 Silver Spring Homes:
🩺 My Health Risk Assessment
See how Silver Spring'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, Silver Spring's air quality improved by 1.9 μg/m³. Based on NBER studies, this change correlates with a estimated 7.6% increase in relative property value retention.
Cleaner Alternatives in MD
No cleaner cities found in this state. Silver Spring is already a top performer!
Why Silver Spring earned a 88.9
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% | 59.5 |
| Seasonal Variability | 10% | 89.4 |
| 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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Silver Spring Air Quality FAQs
Is Silver Spring a good fit for people who care about long-term air quality?
Silver Spring holds a clean air score of 88.9 and a grade of A, suggesting a high-quality environment for long-term air quality. The annual PM2.5 mean of 4.5 reflects relatively low particulate exposure.
What is the frequency of unhealthy air or long-term pollution exposure in Silver Spring?
Silver Spring reports an unhealthy-air frequency of 0%, while its A grade reflects overall low particulate levels over time. The annual PM2.5 mean stands at 4.5.
Is air quality in Silver Spring improving or getting worse over time?
Air quality in Silver Spring has been improving over recent years. This assessment is supported by a 99.2% data completeness rate.
Does air quality vary across different parts of Silver Spring?
Air quality can vary within Silver Spring due to local traffic, industry, and location patterns. Individual neighborhoods may experience conditions that differ from the overall city data.