Yuma, Arizona Air Quality
Yuma County, Arizona (AZ)
→ Stableover 10 years
10-Year AQI Trend
The solid line shows the median AQI each year. The dashed line shows the 90th percentile (worst 10% of days).
Air Quality Day Breakdown
Number of days per year in each EPA AQI category. Green = Good (AQI 0-50), Yellow = Moderate (51-100), Orange = Unhealthy for Sensitive Groups (101-150), Red = Unhealthy or worse (151+).
Year-by-Year Data
| Year | Median AQI | 90th Pct | Max AQI | Good Days | Moderate | Unhealthy+ | Pollutant |
|---|---|---|---|---|---|---|---|
| 2023 | 48 | 74 | 519 | 204 | 150 | 11 | Ozone |
| 2022 | 46 | 73 | 142 | 228 | 128 | 9 | Ozone |
| 2021 | 50 | 71 | 170 | 186 | 173 | 6 | Ozone |
| 2020 | 49 | 70 | 319 | 206 | 157 | 3 | Ozone |
| 2019 | 47 | 67 | 129 | 226 | 136 | 3 | Ozone |
| 2018 | 49 | 80 | 169 | 202 | 147 | 16 | Ozone |
| 2017 | 49 | 73 | 235 | 201 | 150 | 14 | Ozone |
| 2016 | 49 | 77 | 410 | 199 | 153 | 14 | Ozone |
| 2015 | 44 | 77 | 266 | 252 | 99 | 14 | Ozone |
| 2014 | 49 | 84 | 284 | 204 | 144 | 17 | Ozone |
What This Means for Yuma County Residents
Yuma, Arizona has received an Air Quality Grade of C (59/100) based on a decade of monitoring data from the EPA's air quality monitoring program. The current median AQI of 48 falls in the "Good" range.
The primary pollutant affecting this area is Ground-Level Ozone. Over the past 5 years, this area has averaged 6 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity. The American Lung Association's State of the Air report provides additional context on long-term health risks from air pollution exposure.
Related Cities in Arizona
Frequently Asked Questions
Yuma, Arizona has a current median AQI of 48, which falls in the "Good" range. The area has received an Air Quality Grade of C (59/100) based on 10 years of EPA monitoring data.
Air quality in Yuma, Arizona is stable over the past decade. The median AQI has changed by -1 points from 2014 to 2023.
Yuma, Arizona averages 6 unhealthy air quality days per year over the past 5 years. On these days, sensitive groups including children, the elderly, and those with respiratory conditions should limit outdoor activity.
The primary pollutant affecting Yuma, Arizona is Ground-Level Ozone. This is the dominant contributor to elevated AQI readings in the Yuma County area.
Yuma, Arizona averages 6 unhealthy air days per year. Asthma patients should monitor daily AQI readings and limit outdoor activity when AQI exceeds 100. The primary pollutant is Ground-Level Ozone, which is a known asthma trigger.
With a median AQI of 48 (Good), outdoor exercise in Yuma, Arizona is generally safe year-round. Yuma, Arizona averages 6 days per year when athletes should move workouts indoors.