Coconino, Arizona Air Quality
Coconino 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 | 46 | 80 | 203 | 243 | 118 | 4 | Ozone |
| 2022 | 44 | 64 | 101 | 279 | 85 | 1 | Ozone |
| 2021 | 46 | 64 | 93 | 265 | 100 | 0 | Ozone |
| 2020 | 44 | 58 | 93 | 302 | 64 | 0 | Ozone |
| 2019 | 45 | 61 | 80 | 280 | 85 | 0 | Ozone |
| 2018 | 45 | 77 | 126 | 236 | 126 | 3 | Ozone |
| 2017 | 46 | 71 | 105 | 253 | 111 | 1 | Ozone |
| 2016 | 44 | 61 | 97 | 298 | 68 | 0 | Ozone |
| 2015 | 44 | 74 | 108 | 258 | 103 | 4 | Ozone |
| 2014 | 44 | 67 | 126 | 247 | 105 | 5 | Ozone |
What This Means for Coconino County Residents
Coconino, Arizona has received an Air Quality Grade of C (62/100) based on a decade of monitoring data from the EPA's air quality monitoring program. The current median AQI of 46 falls in the "Good" range.
The primary pollutant affecting this area is Ground-Level Ozone. Over the past 5 years, this area has averaged 1 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
Coconino, Arizona has a current median AQI of 46, which falls in the "Good" range. The area has received an Air Quality Grade of C (62/100) based on 10 years of EPA monitoring data.
Air quality in Coconino, Arizona is stable over the past decade. The median AQI has changed by +2 points from 2014 to 2023.
Coconino, Arizona averages 1 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 Coconino, Arizona is Ground-Level Ozone. This is the dominant contributor to elevated AQI readings in the Coconino County area.
Coconino, Arizona averages 1 unhealthy air days per year. This is relatively low, making it a reasonable choice for asthma sufferers. The primary pollutant is Ground-Level Ozone, which is a known asthma trigger.
With a median AQI of 46 (Good), outdoor exercise in Coconino, Arizona is generally safe year-round. Coconino, Arizona averages 1 days per year when athletes should move workouts indoors.