San Pablo, 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.
San Pablo, CA air quality summary: San Pablo, CA, maintains a Clean Air Score of 61.7 and an overall grade of C. The city's average annual PM2.5 concentration is 9.8 µg/m³. San Pablo has an annual PM2.5 mean of 9.8 µg/m³, which is considered moderate but relevant for long-term exposure. Long-term air quality in San Pablo has been worsening over recent years.
Clean Air Score
A score of 61.7 and a C grade indicate that San Pablo has moderate long-term air quality. This grade reflects consistent exposure to fine particulate matter typical for urban environments in the East Bay.
🏡 What This Means for Buying
Air quality should be treated as one factor in a broader relocation or housing decision in San Pablo. The city's data provides a baseline for evaluating long-term environmental conditions.
Indoor Air Quality in San Pablo, 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 San Pablo.
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 San Pablo:
- 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 San Pablo Homes:
🩺 My Health Risk Assessment
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Health Advice
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</> Create Free Widget🏡 Property Value Impact Analysis
Between 2019 and 2024, San Pablo's air quality worsened by 2 μg/m³. Based on NBER studies, this change correlates with a estimated 8% decrease in relative property value retention.
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Why San Pablo earned a 61.7
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% | 32 |
| Unhealthy Days | 25% | 100 |
| 5-Year Trend | 20% | 40 |
| 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.
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San Pablo Air Quality FAQs
Is San Pablo a good fit for people who care about long-term air quality?
San Pablo, CA, offers moderate long-term air quality with a score of 61.7 and a grade of C. Its annual PM2.5 mean of 9.8 µg/m³ is a relevant factor for those considering residency in the area.
What is the frequency of unhealthy air days in San Pablo?
San Pablo reports 0% unhealthy air days, which contributes to its C grade and annual PM2.5 average of 9.8 µg/m³. This indicates that residents are rarely impacted by severe short-term pollution spikes.
Is the air quality in San Pablo improving or getting worse over time?
The long-term air quality in San Pablo is worsening according to recent historical trends. A 97.3% data completeness rate provides high confidence in this assessment of environmental change.
Does air quality vary across different parts of San Pablo?
Air quality can vary by neighborhood in San Pablo, and readers should consult ZIP-level or neighborhood-specific data for more granular detail. Localized factors like proximity to major roads and industrial zones can influence personal exposure.