Morristown, TN
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.
Morristown, TN air quality summary: Morristown, TN, holds a clean air score of 69.8 and a grade of C. The annual PM2.5 mean is 8.4, indicating moderate long-term particulate exposure. Morristown records an annual PM2.5 mean of 8.4, which is a moderate level for long-term exposure. Long-term air quality in Morristown has shown limited change over recent years.
Clean Air Score
A score of 69.8 and a grade of C reflect moderate air quality that is generally acceptable for long-term residency. These metrics suggest a stable environment with occasional exposure to elevated particulates.
🏡 What This Means for Buying
Prospective residents should evaluate Morristown's air quality as one component of a broader housing decision. The C grade indicates a stable atmospheric environment with moderate particulate levels.
Indoor Air Quality in Morristown, TN
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 Morristown.
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 Morristown:
- 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 Morristown Homes:
🩺 My Health Risk Assessment
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Health Advice
Good for most outdoor activities.
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</> Create Free Widget🏡 Property Value Impact Analysis
Between 2019 and 2024, Morristown's air quality worsened by 0.2 μg/m³. Based on NBER studies, this change correlates with a estimated 0.8% decrease in relative property value retention.
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Why Morristown earned a 69.8
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% | 51.2 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 50 |
| Seasonal Variability | 10% | 93.6 |
| 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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Morristown Air Quality FAQs
Is Morristown a good fit for people who care about long-term air quality?
Morristown offers moderate conditions, with a clean air score of 69.8 and a grade of C. The annual PM2.5 mean of 8.4 suggests a generally acceptable but not optimal long-term environment.
What is the frequency of unhealthy air in Morristown?
Morristown reports 0% unhealthy days, indicating that acute pollution spikes are extremely rare. This stability contributes to its C grade and moderate annual PM2.5 mean.
Is air quality in Morristown improving or getting worse over time?
Air quality in Morristown is currently neutral. Data from recent years suggests that particulate levels have remained relatively stable.
Does air quality vary within Morristown?
Air quality can vary within the city due to local traffic, industry, and location patterns. Residents should consider local emission sources in their evaluation.