Hennepin, Minnesota vs Cook, Illinois Air Quality
Side-by-side air quality comparison using 10 years of EPA monitoring data. Hennepin, Minnesota has the edge with an Air Quality Grade of C (64/100).
| Metric | Hennepin, Minnesota | Cook, Illinois |
|---|---|---|
| Air Quality Grade | C (64/100) | D (49/100) |
| Current Median AQI | 52 (Moderate) | 57 (Moderate) |
| 5-Year Average AQI | 47 | 57 |
| 10-Year Trend | ↓ Improving (0) | → Stable (-2) |
| Unhealthy Days/Year | 4 | 18 |
| Primary Pollutant | Fine Particulate Matter (PM2.5) | Fine Particulate Matter (PM2.5) |
Analysis
Hennepin, Minnesota outperforms Cook, Illinois on overall air quality. With a Grade C (64/100) and a median AQI of 52,Hennepin, Minnesota is currently in the "Moderate" range and is improving over the past decade.
Frequently Asked Questions
Hennepin, Minnesota has better air quality with a Grade C (64/100) compared to Cook, Illinois's Grade D (49/100). Hennepin, Minnesota has a current median AQI of 52 and is improving over the past decade.
Hennepin, Minnesota averages 4 unhealthy air days per year (5-year average), while Cook, Illinois averages 18. Unhealthy days are those when AQI exceeds 100 and sensitive groups should limit outdoor activity.
Hennepin, Minnesota's primary pollutant is Fine Particulate Matter (PM2.5), while Cook, Illinois's is Fine Particulate Matter (PM2.5). Both cities share the same dominant pollutant.