Harris, Texas vs Maricopa, Arizona Air Quality
Side-by-side air quality comparison using 10 years of EPA monitoring data. Harris, Texas has the edge with an Air Quality Grade of D (38/100).
| Metric | Harris, Texas | Maricopa, Arizona |
|---|---|---|
| Air Quality Grade | D (38/100) | F (9/100) |
| Current Median AQI | 64 (Moderate) | 72 (Moderate) |
| 5-Year Average AQI | 59 | 90 |
| 10-Year Trend | ↑ Worsening (+6) | ↑ Worsening (+3) |
| Unhealthy Days/Year | 29 | 126 |
| Primary Pollutant | Fine Particulate Matter (PM2.5) | Ground-Level Ozone |
Analysis
Harris, Texas outperforms Maricopa, Arizona on overall air quality. With a Grade D (38/100) and a median AQI of 64,Harris, Texas is currently in the "Moderate" range and is worsening over the past decade.
The cities face different pollutant challenges: Harris, Texas's dominant issue is fine particulate matter (pm2.5), while Maricopa, Arizona primarily contends with ground-level ozone. This means the seasonal and health risk patterns differ — check each city's individual page for detailed breakdowns.
Frequently Asked Questions
Harris, Texas has better air quality with a Grade D (38/100) compared to Maricopa, Arizona's Grade F (9/100). Harris, Texas has a current median AQI of 64 and is worsening over the past decade.
Harris, Texas averages 29 unhealthy air days per year (5-year average), while Maricopa, Arizona averages 126. Unhealthy days are those when AQI exceeds 100 and sensitive groups should limit outdoor activity.
Harris, Texas's primary pollutant is Fine Particulate Matter (PM2.5), while Maricopa, Arizona's is Ground-Level Ozone. Different dominant pollutants mean different seasonal and health risk patterns.