Riverside, California vs Los Angeles, California Air Quality
Side-by-side air quality comparison using 10 years of EPA monitoring data. Both cities have identical Air Quality Grades.
| Metric | Riverside, California | Los Angeles, California |
|---|---|---|
| Air Quality Grade | D (36/100) | D (36/100) |
| Current Median AQI | 79 (Moderate) | 67 (Moderate) |
| 5-Year Average AQI | 82 | 75 |
| 10-Year Trend | ↓ Improving (-14) | ↓ Improving (-15) |
| Unhealthy Days/Year | 129 | 100 |
| Primary Pollutant | Ground-Level Ozone | Fine Particulate Matter (PM2.5) |
Analysis
Both cities have comparable air quality profiles with identical grades. The key difference is in trend direction and pollutant mix.
The cities face different pollutant challenges: Riverside, California's dominant issue is ground-level ozone, while Los Angeles, California primarily contends with fine particulate matter (pm2.5). This means the seasonal and health risk patterns differ — check each city's individual page for detailed breakdowns.
Frequently Asked Questions
Riverside, California and Los Angeles, California have identical Air Quality Grades. Both score 36/100 based on 10 years of EPA data.
Riverside, California averages 129 unhealthy air days per year (5-year average), while Los Angeles, California averages 100. Unhealthy days are those when AQI exceeds 100 and sensitive groups should limit outdoor activity.
Riverside, California's primary pollutant is Ground-Level Ozone, while Los Angeles, California's is Fine Particulate Matter (PM2.5). Different dominant pollutants mean different seasonal and health risk patterns.