Roswell, GA
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.
Roswell, GA air quality summary: Roswell, GA, maintains a clean air score of 66.7 and a grade of C. The city's PM2.5 annual mean is 9 micrograms per cubic meter. Roswell records a PM2.5 annual mean of 9, which represents a moderate level for long-term particulate exposure. Long-term air quality in Roswell has remained modest and stable over recent years.
Clean Air Score
A score of 66.7 reflects moderate long-term air quality within the northern Atlanta metropolitan area. The grade of C indicates that annual average particulate concentrations stay within standard ranges for its regional environment.
🏡 What This Means for Buying
Prospective residents should include air quality as a neutral factor in their broader housing evaluation. This environmental data provides a useful baseline for assessing the long-term living conditions in the area.
Indoor Air Quality in Roswell, GA
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 Roswell.
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 Roswell:
- 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 Roswell Homes:
🩺 My Health Risk Assessment
See how Roswell'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, Roswell's air quality worsened by 0.4 μg/m³. Based on NBER studies, this change correlates with a estimated 1.6% decrease in relative property value retention.
Cleaner Alternatives in GA
Why Roswell earned a 66.7
Raw inputs, scoring weights, and data coverage for this city.
Best Time to Run
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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% | 43.5 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 50 |
| Seasonal Variability | 10% | 93.4 |
| Extreme Events | 5% | 100 |
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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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Roswell Air Quality FAQs
Is Roswell a good fit for people who care about long-term air quality?
Roswell offers a moderate air quality profile, holding a score of 66.7 and a grade of C. The annual PM2.5 mean stands at 9.
How often does Roswell experience unhealthy air days?
The frequency of unhealthy air days in Roswell is 0%, which is consistent with its overall grade of C. This suggests that acute pollution spikes are currently infrequent.
Is air quality in Roswell improving or getting worse over time?
Air quality in Roswell is characterized as neutral, indicating limited change over the recent tracking period.
Does air quality vary across different parts of Roswell?
Local air quality in Roswell can be influenced by traffic density on major corridors and proximity to commercial centers. Residents may find that conditions differ depending on their specific location within the city.