Rio Vista, California Air Quality
Rio Vista has a median AQI of 34, earning an air quality grade of A — excellent air quality that ranks better than 84% of US cities. Air quality has been improving steadily over the past decade, a positive sign for residents. Ground-level ozone is the primary concern, typically peaking on warm sunny days due to vehicle and industrial emissions. In 2025, Rio Vista recorded 265 good air quality days (99% of monitored days).
Population: 10,102 • County: Solano
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Quick Facts
| Current AQI | 69 — Moderate |
| Air Quality Grade | A |
| Median AQI (2025) | 34 |
| vs. U.S. Cities | Better than 84% |
| Primary Pollutant | Ozone |
| Unhealthy Days/Year | 0 |
| 10-Year Trend | ↑ Improving |
| Data Source | EPA AirNow |
Health Recommendation
Air quality is acceptable. However, there may be a risk for some people who are unusually sensitive to air pollution.
Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion.
5-Day AQI Forecast
Last 30 Days
Current Pollutant Levels
Real-time data from EPA AirNow
AQI Trend (10 Years)
Air Quality Days by Year
2025 Air Quality Summary
Primary Pollutant Days (2025)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Rio Vista Air Quality
What is the air quality in Rio Vista today?
The current AQI in Rio Vista is 69, which is rated "Moderate". Air quality is acceptable. However, there may be a risk for some people who are unusually sensitive to air pollution.
Is air quality in Rio Vista getting better or worse?
Air quality in Rio Vista has been improving over the past decade. The median AQI dropped from 47 in 2016 to 34 in 2025.
What is the most common air pollutant in Rio Vista?
Ozone is the primary air pollutant in Rio Vista, responsible for the most air quality-impacted days in 2025. Ground-level ozone forms when sunlight reacts with vehicle and industrial emissions on warm days.
How many unhealthy air days does Rio Vista have per year?
In 2025, Rio Vista had 0 days when air quality was unhealthy or unhealthy for sensitive groups (AQI above 100). There were 265 good days and 3 moderate days out of 268 days monitored.
What air quality grade does Rio Vista receive?
Rio Vista receives an air quality grade of A, placing it better than 84% of US cities. This grade is based on a median AQI of 34 for 2025, derived from EPA monitoring data.
Air Quality Grade
Better than 84% of US cities
Nearby Cities
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National Rankings
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Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Rio Vista
Based on your area's air quality (median AQI: 34), we recommend these air purifiers to help protect your health indoors.
RabbitAir MinusA2
Stylish wall-mountable design with customizable artwork panels.
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Other Great Options
Molekule Air Pro
Commercial-grade with patented PECO technology for destroying pollutants.
Blueair Blue Pure 211+
High performance for large rooms with simple operation.
Dyson Pure Cool TP04
Premium all-in-one air purifier and fan with advanced features.
Not sure which air purifier is right for you?
Learn more about different types of air purifiers and how to choose the best one for your needs.
Read our complete buying guide →