Macomb, Michigan Air Quality
Macomb County, Michigan (MI)
↑ Worseningover 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 in this area has been declining over the past decade.
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 | 51 | 75 | 195 | 182 | 170 | 12 | PM2.5 |
| 2022 | 44 | 70 | 126 | 223 | 140 | 2 | PM2.5 |
| 2021 | 51 | 71 | 115 | 180 | 182 | 3 | PM2.5 |
| 2020 | 36 | 63 | 126 | 252 | 35 | 12 | Ozone |
| 2019 | 39 | 58 | 101 | 238 | 53 | 1 | Ozone |
| 2018 | 39 | 71 | 143 | 229 | 60 | 10 | Ozone |
| 2017 | 42 | 64 | 112 | 212 | 69 | 3 | Ozone |
| 2016 | 44 | 71 | 147 | 171 | 65 | 7 | Ozone |
| 2015 | 44 | 74 | 170 | 158 | 77 | 6 | Ozone |
| 2014 | 43 | 74 | 136 | 169 | 70 | 5 | Ozone |
What This Means for Macomb County Residents
Macomb, Michigan has received an Air Quality Grade of C (57/100) based on a decade of EPA monitoring data. The current median AQI of 51 falls in the "Moderate" range.
Concerning trends show air quality has been declining, with the median AQI rising by 8 points over the monitoring period. This could be driven by increased development, wildfire smoke, or industrial activity.
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.