Harrison, NY
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.
Harrison, NY air quality summary: Harrison, NY holds a Clean Air Score of 76.7 and a grade of B, with an annual PM2.5 mean of 6.9 µg/m³. This data provides a historical overview of the city's long-term air quality environment. Harrison records an annual PM2.5 mean of 6.9 µg/m³, representing moderate long-term particulate exposure. Historical data indicates that long-term air quality in Harrison has been improving over recent years.
Clean Air Score
A Clean Air Score of 76.7 and B grade indicate moderate long-term air quality in Harrison. These figures assess chronic particulate exposure over multiple years of recordings.
🏡 What This Means for Buying
For those evaluating Harrison for long-term residence, the B grade offers a factual basis for atmospheric conditions. Air quality should be considered alongside other factors in a relocation assessment.
Indoor Air Quality in Harrison, NY
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 Harrison.
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 Harrison:
- 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 Harrison Homes:
🩺 My Health Risk Assessment
See how Harrison's air quality affects you and your family specifically.
Health Advice
Enjoy the outdoors! Air quality is great.
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</> Create Free Widget🏡 Property Value Impact Analysis
Between 2019 and 2024, Harrison's air quality improved by 3.5 μg/m³. Based on NBER studies, this change correlates with a estimated 14% increase in relative property value retention.
Cleaner Alternatives in NJ
Why Harrison earned a 76.7
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% | 72.6 |
| Unhealthy Days | 25% | 94.4 |
| 5-Year Trend | 20% | 67.5 |
| Seasonal Variability | 10% | 90.4 |
| 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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Harrison Air Quality FAQs
Is Harrison a good fit for people who care about long-term air quality?
Harrison, NY holds a Clean Air Score of 76.7 and a B grade, with an annual PM2.5 mean of 6.9 µg/m³. This suggests a moderate long-term air quality profile for the community.
How often does Harrison experience unhealthy air frequency?
Harrison records 0.3% unhealthy air days, which is consistent with its B grade and 6.9 µg/m³ annual PM2.5 mean. This indicates that significant pollution events are infrequent in the historical record.
Is the air quality in Harrison improving or getting worse over time?
Long-term monitoring in Harrison suggests that air quality has been improving over recent years.
Does air quality vary within Harrison?
Air quality within Harrison can fluctuate based on local traffic, industrial activity, and specific location patterns, as is common in urban environments.