South Laurel, MD
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.
South Laurel, MD air quality summary: South Laurel, MD, features an excellent Clean Air Score of 88.9 and an overall grade of A. The city's average annual PM2.5 concentration is 4.5 µg/m³. South Laurel recorded an annual PM2.5 mean of 4.5 µg/m³, which represents relatively low long-term particulate exposure. Long-term air quality in South Laurel has been improving over recent years.
Clean Air Score
A score of 88.9 and an A grade indicate that South Laurel consistently maintains exceptional long-term air quality. This reflects very low exposure to fine particulate matter over multiple years.
🏡 What This Means for Buying
South Laurel's strong air quality record is a significant positive factor for long-term residency. Homebuyers should treat this data as one component of a broader relocation or housing evaluation.
Indoor Air Quality in South Laurel, MD
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 South Laurel.
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 South Laurel:
- 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 South Laurel Homes:
🩺 My Health Risk Assessment
See how South Laurel's air quality affects you and your family specifically.
Health Advice
Enjoy the outdoors! Air quality is great.
Add South Laurel Air Quality to your site
Perfect for local news, real estate blogs, and community pages.
</> Create Free Widget🏡 Property Value Impact Analysis
Between 2019 and 2024, South Laurel's air quality improved by 1.9 μg/m³. Based on NBER studies, this change correlates with a estimated 7.6% increase in relative property value retention.
Cleaner Alternatives in MD
No cleaner cities found in this state. South Laurel is already a top performer!
Why South Laurel earned a 88.9
Raw inputs, scoring weights, and data coverage for this city.
Best Time to Run
Find the cleanest hours for your run today.
Cycling Forecast
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% | 59.5 |
| Seasonal Variability | 10% | 89.4 |
| 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.
More Cities in MD
Similar Rankings Nationwide
South Laurel Air Quality FAQs
Is South Laurel a good fit for people who care about long-term air quality?
South Laurel, MD, is an excellent choice with a Clean Air Score of 88.9 and a grade of A. Its annual PM2.5 mean of 4.5 µg/m³ indicates consistently high air clarity for residents.
What is the frequency of unhealthy air days in South Laurel?
South Laurel reports 0% unhealthy air days, which supports its A grade and exceptionally low annual PM2.5 average. This suggests that the city is rarely impacted by severe pollution events.
Is the air quality in South Laurel improving or getting worse over time?
Historical data shows that air quality in South Laurel is on an improving trend over recent years. A 99.2% data completeness rate provides a reliable basis for this positive assessment.
Does air quality vary across different parts of South Laurel?
Air quality can vary within the city due to local traffic, industry, and location patterns. Proximity to major transit corridors and local industrial zones can influence local particulate concentrations.