South Gate, 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 Gate, MD air quality summary: South Gate, MD, has a Clean Air Score of 80.1 and an overall grade of B. The city's average annual PM2.5 level is 6.6 µg/m³. South Gate recorded an annual PM2.5 mean of 6.6 µg/m³, which represents relatively low long-term particulate exposure. Long-term air quality in South Gate has been improving over recent years.
Clean Air Score
A score of 80.1 and a B grade indicate that South Gate consistently offers healthy air quality for residents. This reflects low average exposure to fine particulate matter over multiple years.
🏡 What This Means for Buying
South Gate's strong air quality record is a positive attribute for prospective homebuyers. Environmental data should be weighed alongside other local factors when selecting a residence.
Indoor Air Quality in South Gate, 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 Gate.
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 Gate:
- 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 Gate Homes:
🩺 My Health Risk Assessment
See how South Gate'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, South Gate's air quality improved by 1.8 μg/m³. Based on NBER studies, this change correlates with a estimated 7.2% increase in relative property value retention.
Cleaner Alternatives in MD
Why South Gate earned a 80.1
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% | 76.8 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 59 |
| Seasonal Variability | 10% | 93.9 |
| 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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South Gate Air Quality FAQs
Is South Gate a good fit for people who care about long-term air quality?
South Gate, MD, is a healthy choice with a Clean Air Score of 80.1 and a grade of B. Its annual PM2.5 mean of 6.6 µg/m³ indicates a consistently good environment for residents.
What is the frequency of unhealthy air days in South Gate?
South Gate reports 0% unhealthy air days, which helps maintain its B grade and healthy annual PM2.5 average. This suggests that the city is rarely impacted by hazardous pollution spikes.
Is the air quality in South Gate improving or getting worse over time?
The long-term air quality in South Gate is on an improving trend according to historical records. A 99.5% data completeness rate provides high confidence in this environmental assessment.
Does air quality vary across different parts of South Gate?
Air quality can vary within the city due to local traffic, industry, and location patterns. Residents near major transit corridors or industrial zones may experience different conditions than more residential areas.