Round Rock, TX
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.
Round Rock, TX air quality summary: Round Rock, TX, maintains a clean air score of 55.6 and a grade of C. The city records a PM2.5 annual mean of 10 micrograms per cubic meter. Round Rock records a PM2.5 annual mean of 10, representing a moderate level for long-term particulate exposure. Long-term air quality in Round Rock has remained stable with limited change in recent years.
Clean Air Score
The score of 55.6 suggests a moderate level of long-term air quality that is consistent with its urbanized region. A grade of C indicates that particulate levels stay within common average ranges for central Texas.
🏡 What This Means for Buying
Air quality in Round Rock should be considered a neutral to moderate factor in any relocation or housing evaluation. Potential residents are encouraged to look at multi-year trends alongside other community metrics.
Indoor Air Quality in Round Rock, TX
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 Round Rock.
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 Round Rock:
- 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 Round Rock Homes:
🩺 My Health Risk Assessment
See how Round Rock'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, Round Rock's air quality worsened by 0.5 μg/m³. Based on NBER studies, this change correlates with a estimated 2% decrease in relative property value retention.
Cleaner Alternatives in TX
Why Round Rock earned a 55.6
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% | 28.4 |
| Unhealthy Days | 25% | 83.6 |
| 5-Year Trend | 20% | 50 |
| Seasonal Variability | 10% | 83.2 |
| 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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Round Rock Air Quality FAQs
Is Round Rock a good fit for people who care about long-term air quality?
Round Rock offers moderate air quality, with a score of 55.6 and a grade of C. The annual PM2.5 mean stands at 10.
How often does Round Rock experience unhealthy air days?
Round Rock experiences unhealthy air days 0.8% of the time. This rate is consistent with its overall grade of C and typical regional pollution patterns.
Is air quality in Round Rock improving or getting worse over time?
The air quality in Round Rock is classified as neutral, indicating that pollution levels have not seen significant shifts recently.
Does air quality vary across different parts of Round Rock?
Particulate levels in Round Rock can vary due to proximity to major transit corridors and commercial centers. City-wide data provides a general average, but localized conditions may differ.