Tiffin, OH
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.
Tiffin, OH air quality summary: Tiffin, OH holds a clean air score of 66.9 and a C grade. The city's annual PM2.5 mean is 8.9, which is a moderate level for long-term exposure. Tiffin's annual PM2.5 mean is 8.9, representing the consistent concentration of fine inhalable particles in the atmosphere. The long-term air quality trend in Tiffin is neutral with limited change over recent years.
Clean Air Score
The clean air score of 66.9 and C grade reflect average air quality. These values suggest that fine particulate matter is present at levels that are typical for the region and should be monitored.
🏡 What This Means for Buying
Air quality in Tiffin should be considered as one factor among many in a broader housing evaluation. It provides a standard environmental profile for this part of Ohio.
Indoor Air Quality in Tiffin, OH
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 Tiffin.
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 Tiffin:
- 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 Tiffin Homes:
🩺 My Health Risk Assessment
See how Tiffin'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, Tiffin'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 OH
Why Tiffin earned a 66.9
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% | 44.1 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 50 |
| Seasonal Variability | 10% | 92.1 |
| 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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Tiffin Air Quality FAQs
Is Tiffin a good fit for people who care about long-term air quality?
Tiffin offers moderate air quality with a clean air score of 66.9 and a C grade. The PM2.5 annual mean of 8.9 is within acceptable limits but remains relevant for long-term exposure.
What is the frequency of unhealthy air or long-term pollution exposure in Tiffin?
Tiffin recorded 0% unhealthy days, which is positive for short-term exposure. However, its C grade is based on the 8.9 annual PM2.5 mean.
Is air quality in Tiffin improving or getting worse over time?
The air quality trend in Tiffin is neutral. There has been no significant improvement or decline in particulate matter levels recently.
Does air quality vary across different parts of Tiffin?
Air quality can vary within the city due to local traffic, industry, and location patterns. Proximity to industrial sites or busy thoroughfares can influence local air quality conditions.