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West Scarborough, ME

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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.

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Note: West Scarborough does not have its own EPA monitor, and this page relies on data from the nearest monitor in Portland, located 8.8 miles away.
📍 Homebuyer Guide 📊 Data Coverage: 100% 📅 2021-2025 Trends

West Scarborough, ME air quality summary: West Scarborough, ME has a Clean Air Score of 85.2 and an air quality grade of A. The annual mean PM2.5 concentration is 5.7 µg/m³. In West Scarborough, the annual mean concentration of PM2.5 is 5.7 µg/m³, which is moderate or acceptable but still relevant for long-term exposure. The long-term air quality trend in West Scarborough is improving over recent years.

Clean Air Score

85
Grade A

A Clean Air Score of 85.2 reflects moderate or acceptable but still relevant for long-term exposure over the long term. This score and grade highlight the particulate matter levels in West Scarborough relative to clean air targets.

🏡 What This Means for Buying

For residents and homebuyers, West Scarborough’s air quality should be treated as one factor in a broader long-term housing decision. Evaluation should consider moderate or acceptable but still relevant for long-term exposure as a component of living conditions.

Best time for outdoor visits: Check seasonal chart

Indoor Air Quality in West Scarborough, ME

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 West Scarborough.

AQI 0-50

Good

Open 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

Moderate

Open 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 Groups

Open 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+

Unhealthy

Open 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 West Scarborough:

  • 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.

People also search: "indoor air quality in West Scarborough, ME"

🩺 My Health Risk Assessment

See how West Scarborough's air quality affects you and your family specifically.

Current Risk Level
Low Risk
🟢
💡

Health Advice

Enjoy the outdoors! Air quality is great.

Est. Annual "Risky Days" for you: ~0 days/year

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🏡 Property Value Impact Analysis

Estimated Impact (5-Year)
Positive Signal
+12.0% theoretical value retention

Between 2019 and 2024, West Scarborough's air quality improved by 3 μg/m³. Based on NBER studies, this change correlates with a estimated 12% increase in relative property value retention.

* Methodology: Comparison based on National Bureau of Economic Research (NBER) Working Paper 15655 correlation between PM2.5 reduction and housing prices. This is a theoretical estimate for informational purposes only.
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Annual PM2.5
5.7 μg/m³
WHO Target: <5.0
Good Days
100.0 %
% days AQI < 100
5-Year Trend
Improving
↑ Improving
Long-term direction
Extreme Days
0 days/yr
Days AQI > 150 (Est.)

Why West Scarborough earned a 85.2

Raw inputs, scoring weights, and data coverage for this city.

See full formula
Annual Air Quality
5.7 μg/m³
Component score 90.3 × 40% = 36.1 points
Unhealthy Days
0 days/yr est.
0% of days above AQI 100. Component score 100 × 25% = 25.0 points
5-Year Trend
Improving
Component score 65 × 20% = 13.0 points
Seasonal Variability
90.5
Higher means steadier month-to-month air. Weighted contribution: 9.1 points
Extreme Events
100
Captures severe pollution spikes. Weighted contribution: 5.0 points
Coverage & Monitoring
100%
Proxy monitor: Portland (8.8 miles away)

📅 Past 30 Days Trend

Real-time daily PM2.5 AQI

Live Data

Score Breakdown

Component Weight Score Contribution
Annual Air Quality 40% 90.3
Unhealthy Days 25% 100
5-Year Trend 20% 65
Seasonal Variability 10% 90.5
Extreme Events 5% 100

Explore More Air Quality Data

Frequently Asked Questions

How often is this air quality data updated? Our historical trend models and annual rankings are updated regularly based on official EPA data to ensure reports reflect the latest available long-term trends.
What sources does CleanAirData use? We rely strictly on official U.S. Environmental Protection Agency (EPA) monitoring station data for all historical air quality scoring and reports.
Data sourced from U.S. Environmental Protection Agency (EPA) — See our methodology

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.

Data provided for informational purposes only. Always consult local health officials during extreme smoke or pollution events.

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West Scarborough Air Quality FAQs

Is West Scarborough a good fit for people who care about long-term air quality?

West Scarborough holds a Clean Air Score of 85.2 and a grade of A. The annual mean PM2.5 level of 5.7 µg/m³ reflects moderate or acceptable but still relevant for long-term exposure.

How often does West Scarborough experience unhealthy air or long-term pollution exposure?

The city experienced unhealthy air conditions 0% of the time during the study period. This frequency contributes to the overall grade of A for West Scarborough.

Is air quality in the city improving or getting worse over time?

The air quality trend in West Scarborough is improving over recent years.

How does air quality vary across different parts of the city?

Air quality can vary within the city due to local traffic, industrial activity, and location patterns, even without localized monitoring.