Ludlow, MA
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.
Ludlow, MA air quality summary: Ludlow, MA, maintains a very high clean air score of 89.3 and a grade of A. The annual mean for PM2.5 in the city is 5. Ludlow recorded an annual PM2.5 mean of 5, which represents a relatively low long-term particulate exposure. The long-term air quality trend in Ludlow is neutral, showing limited change over recent years.
Clean Air Score
A score of 89.3 and an A grade indicate excellent long-term air quality for residents. These figures show that particulate matter levels are consistently very low throughout the year.
🏡 What This Means for Buying
Ludlow's air quality is a strong environmental positive for those planning a long-term relocation. This data provides a favorable baseline for evaluating residential conditions in the area.
Indoor Air Quality in Ludlow, MA
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 Ludlow.
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 Ludlow:
- 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 Ludlow Homes:
🩺 My Health Risk Assessment
See how Ludlow'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, Ludlow's air quality worsened by 0.1 μg/m³. Based on NBER studies, this change correlates with a estimated 0.4% decrease in relative property value retention.
Cleaner Alternatives in MA
No cleaner cities found in this state. Ludlow is already a top performer!
Why Ludlow earned a 89.3
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% | 100 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 50 |
| Seasonal Variability | 10% | 92.8 |
| 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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Ludlow Air Quality FAQs
Is Ludlow a good fit for people who care about long-term air quality?
Ludlow is an excellent choice with a clean air score of 89.3 and a grade of A. The annual PM2.5 mean of 5 reflects low overall particulate exposure over the long term.
What is the frequency of unhealthy air or long-term pollution exposure in Ludlow?
Ludlow has an unhealthy days percentage of 0. Combined with its A grade, this shows that residents are almost never exposed to high levels of pollution.
Is air quality in Ludlow improving or getting worse over time?
The air quality trend in Ludlow is currently neutral. Long-term atmospheric conditions have remained stable at a very high level of quality in recent years.
How much does air quality vary within different parts of Ludlow?
Air quality can vary within the city due to local traffic, industry, and location patterns. Small-scale variations can occur near local emission sources like heavy traffic or specific industrial sites.