South Lake Tahoe, CA
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 Lake Tahoe, CA air quality summary: South Lake Tahoe, CA, holds a Clean Air Score of 83.4 and a grade of B for its environmental performance. The city maintains an annual PM2.5 mean of 6, representing the average particulate levels recorded for the area. South Lake Tahoe recorded an annual PM2.5 mean of 6, which is described as moderate or acceptable but still relevant for long-term exposure. Long-term air quality in South Lake Tahoe has been worsening over recent years.
Clean Air Score
A Clean Air Score of 83.4 and a B grade signify good air quality in South Lake Tahoe. These ratings indicate that particulate levels are generally low and remain within healthy ranges for the community.
🏡 What This Means for Buying
South Lake Tahoe's positive air quality metrics offer a favorable context for individuals evaluating long-term housing or relocation. Environmental quality is an important component of the local residential experience.
Indoor Air Quality in South Lake Tahoe, CA
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 Lake Tahoe.
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 Lake Tahoe:
- Wildfire smoke infiltration (PM2.5)
- 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 Lake Tahoe Homes:
🩺 My Health Risk Assessment
See how South Lake Tahoe'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 Lake Tahoe's air quality worsened by 1.6 μg/m³. Based on NBER studies, this change correlates with a estimated 6.4% decrease in relative property value retention.
Cleaner Alternatives in NV
Why South Lake Tahoe earned a 83.4
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% | 85.4 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 42 |
| Seasonal Variability | 10% | 92.2 |
| 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 Lake Tahoe Air Quality FAQs
Is South Lake Tahoe a good fit for people who care about long-term air quality?
South Lake Tahoe is a solid candidate for those concerned with air quality, as shown by its Clean Air Score of 83.4 and B grade. The annual PM2.5 mean of 6 confirms a high standard of atmospheric purity.
What is the frequency of unhealthy air or long-term pollution exposure in South Lake Tahoe?
South Lake Tahoe reports 0% unhealthy air days, reinforcing its B grade and long-term particulate standing. This stability is consistent with its recorded annual PM2.5 mean of 6.
Is air quality in South Lake Tahoe improving or getting worse over time?
Environmental data shows that air quality in South Lake Tahoe has been worsening over recent years. This trend reflects changes in the regional environmental profile over the observed period.
How does air quality vary within the city?
Air quality can vary within the city due to local traffic, industry, and location patterns, without naming specific districts. Different neighborhoods may experience slight variations in air clarity based on localized factors.