Saint Andrews, SC
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.
Saint Andrews, SC air quality summary: Saint Andrews, SC, features a clean air score of 69.6 and a grade of C, with an annual PM2.5 mean of 8.2 µg/m³. These metrics suggest a moderate air quality environment suitable for long-term living. Saint Andrews has an annual PM2.5 mean of 8.2 µg/m³, which represents a moderate level of long-term particulate exposure. The air quality in Saint Andrews has been improving over recent years.
Clean Air Score
A clean air score of 69.6 and a grade of C indicate a moderate level of long-term particulate exposure. This rating suggests that air quality is generally stable but slightly lower than in some neighboring areas.
🏡 What This Means for Buying
The C grade in Saint Andrews indicates a moderate environmental profile that should be factored into any long-term housing or relocation assessment.
Indoor Air Quality in Saint Andrews, SC
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 Saint Andrews.
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 Saint Andrews:
- 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 Saint Andrews Homes:
🩺 My Health Risk Assessment
See how Saint Andrews'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 2020 and 2024, Saint Andrews's air quality improved by 4.2 μg/m³. Based on NBER studies, this change correlates with a estimated 15% increase in relative property value retention.
Cleaner Alternatives in SC
Why Saint Andrews earned a 69.6
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% | 54 |
| Unhealthy Days | 25% | 94.5 |
| 5-Year Trend | 20% | 71 |
| Seasonal Variability | 10% | 93.4 |
| 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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Saint Andrews Air Quality FAQs
Is Saint Andrews a good fit for people who care about long-term air quality?
Saint Andrews is a moderate option with a clean air score of 69.6 and a grade of C. Its annual PM2.5 mean of 8.2 µg/m³ reflects a generally stable environment for long-term residents.
What is the frequency of unhealthy air days in Saint Andrews?
Saint Andrews has an unhealthy days percentage of 0.3%, which is quite low for a city with a C grade. This supports its overall annual PM2.5 mean of 8.2 µg/m³ as a representative exposure level.
Is the air quality in Saint Andrews improving or getting worse over time?
Air quality in Saint Andrews is improving, showing a positive trend in pollution reduction over recent years.
Does air quality vary across different parts of Saint Andrews?
Air quality can vary within the city due to local traffic, industry, and location patterns. Particulate levels can be influenced by proximity to commercial centers and major transit routes.