PM2.5 in Riverside, CA
Real-time Fine Particulate Matter monitoring and health recommendations
Current PM2.5 Levels
Overall AQI
About Fine Particulate Matter
Tiny particles less than 2.5 micrometers that can penetrate deep into lungs and bloodstream.
Measured in µg/m³
Health Impact
Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion.
What Is a Safe Level of PM2.5?
By the EPA Air Quality Index, fine particulate matter is Good — safe for everyone up to 9 µg/m³ (AQI 0–50). From 9 to 35.4 µg/m³ is Moderate (AQI 51–100): acceptable for most people, though unusually sensitive individuals may notice symptoms. Above 35.4 µg/m³ the air turns Unhealthy for Sensitive Groups and EPA health guidance applies.
Riverside is currently at AQI 65 (≈16.6 µg/m³, estimated) for PM2.5 — in the Moderate range, which is acceptable for most people but worth watching if you're in a sensitive group.
Thresholds are the official EPA AQI category breakpoints for fine particulate matter. The current concentration is estimated from the measured AQI sub-index; the exact value within a band is not recoverable from the index alone.
Sources of PM2.5
• Vehicle exhaust and combustion engines
• Industrial emissions and manufacturing
• Wildfires and wood burning
• Construction and road dust
Other Pollutants
Full Air Quality Report
View all pollutants and comprehensive air quality data for Riverside.
View Full ReportProtect Your Indoor Air in Riverside
With an AQI of 172 in Riverside driven by fine particulate matter (PM2.5), outdoor pollution is seeping indoors. A True-HEPA purifier captures up to 99.97% of the PM2.5, wildfire smoke and fine particles behind this reading. On unhealthy days like today, size up to a higher-CADR unit so it can clear the whole living area quickly.
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Protect Your Indoor Air in Riverside
With an AQI of 172 in Riverside driven by fine particulate matter (PM2.5), outdoor pollution is seeping indoors. A True-HEPA purifier captures up to 99.97% of the PM2.5, wildfire smoke and fine particles behind this reading. On unhealthy days like today, size up to a higher-CADR unit so it can clear the whole living area quickly.
Compare top-rated True-HEPA purifiers:
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