Seguin, 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.
Seguin, TX air quality summary: Seguin, TX, maintains a Clean Air Score of 63 and an overall grade of C. The city's average annual PM2.5 concentration is 8.9 µg/m³. Seguin has an annual PM2.5 mean of 8.9 µg/m³, which is considered moderate but relevant for long-term exposure. Long-term air quality in Seguin has remained neutral over recent years.
Clean Air Score
A score of 63 and a C grade reflect moderate long-term air quality for Seguin. These values indicate consistent exposure to fine particulate matter typical for the Central Texas region.
🏡 What This Means for Buying
Air quality in Seguin should be treated as one factor in a comprehensive relocation decision. The city's data provides context for evaluating long-term environmental conditions.
Indoor Air Quality in Seguin, 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 Seguin.
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 Seguin:
- 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 Seguin Homes:
🩺 My Health Risk Assessment
See how Seguin'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, Seguin's air quality improved by 0.2 μg/m³. Based on NBER studies, this change correlates with a estimated 0.8% increase in relative property value retention.
Cleaner Alternatives in TX
Why Seguin earned a 63
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% | 44.2 |
| Unhealthy Days | 25% | 89.1 |
| 5-Year Trend | 20% | 50 |
| Seasonal Variability | 10% | 80.9 |
| 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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Seguin Air Quality FAQs
Is Seguin a good fit for people who care about long-term air quality?
Seguin, TX, offers moderate air quality with a score of 63 and a grade of C. Its annual PM2.5 mean of 8.9 µg/m³ is within typical regional limits for long-term residency.
What is the frequency of unhealthy air days in Seguin?
Seguin experiences unhealthy air days about 0.5% of the time, which is reflected in its C grade. This low frequency of spikes contributes to the overall annual particulate exposure.
Is the air quality in Seguin improving or getting worse over time?
The air quality trend in Seguin is currently neutral, showing limited change over recent years. A 100% data completeness rate provides a reliable baseline for this assessment.
Does air quality vary across different parts of Seguin?
Air quality can vary within the city due to local traffic, industry, and location patterns. Localized factors like proximity to major highways and industrial zones can influence long-term exposure levels.