Horizon City, 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.
Horizon City, TX air quality summary: Horizon City, TX maintains a Clean Air Score of 49.5 and an air quality grade of D. The city's annual PM2.5 mean is measured at 10.7 micrograms per cubic meter. Horizon City has an annual PM2.5 mean of 10.7, which represents moderate or acceptable but still relevant for long-term exposure. Long-term air quality in Horizon City is described as worsening over recent years.
Clean Air Score
The Clean Air Score of 49.5 and D grade reflect the long-term averages of fine particulate matter in the local atmosphere. These metrics provide a baseline for understanding the chronic exposure levels residents may experience.
🏡 What This Means for Buying
Air quality should be treated as one factor in a broader relocation or housing decision. Prospective residents can use these long-term trends to evaluate the environmental context of different neighborhoods.
Indoor Air Quality in Horizon City, 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 Horizon City.
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 Horizon City:
- 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 Horizon City Homes:
🩺 My Health Risk Assessment
See how Horizon City's air quality affects you and your family specifically.
Health Advice
Reduce prolonged outdoor exertion.
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</> Create Free Widget🏡 Property Value Impact Analysis
Between 2019 and 2024, Horizon City's air quality worsened by 2.7 μg/m³. Based on NBER studies, this change correlates with a estimated 10.8% decrease in relative property value retention.
Cleaner Alternatives in TX
Why Horizon City earned a 49.5
Raw inputs, scoring weights, and data coverage for this city.
Best Time to Run
Find the cleanest hours for your run today.
Cycling Forecast
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% | 18.5 |
| Unhealthy Days | 25% | 72.7 |
| 5-Year Trend | 20% | 36.5 |
| Seasonal Variability | 10% | 89.6 |
| 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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Horizon City Air Quality FAQs
Is Horizon City a good fit for people who care about long-term air quality?
Horizon City has a Clean Air Score of 49.5 and a grade of D. With an annual PM2.5 mean of 10.7, the area provides moderate or acceptable but still relevant for long-term exposure.
What is the frequency of unhealthy air or long-term pollution exposure in Horizon City?
In Horizon City, the percentage of unhealthy air days is 1.4 percent. This frequency contributes to the city's overall D grade and annual PM2.5 mean of 10.7.
Is air quality in Horizon City improving or getting worse over time?
Long-term air quality in Horizon City is considered worsening over recent years based on historical data.
How does air quality vary within Horizon City?
Air quality can vary within the city due to local traffic, industry, and location patterns, even without distinct neighborhood monitoring data.