Skip to main content
AirHistory

What Is the Air Quality in Scott, Minnesota?

Scott, Minnesota has an Air Quality Grade of C (fair) with a 5-year median AQI of 41. The dominant pollutant is Ground-Level Ozone, and air quality has been worsening over the past decade.

Scott, Minnesota Air Quality Snapshot

Air Quality GradeC53/100
5-Year Median AQI41 (Good)
Most Recent Median AQI (2023)51 (Moderate)
Dominant PollutantGround-Level Ozone
10-Year TrendWorsening (+1.39 AQI/yr)
Unhealthy Days (last 5 yr)18
National Rank (cleanest = #1)#556 of 1,020 (55th most polluted percentile)
Minnesota Rank#18 of 21

What Does the C Grade Mean?

Scott, Minnesota earns a C — air quality is fair, but not great. With a 5-year median AQI of 41, the city sees a meaningful number of "Moderate" days each year, when the EPA flags air as a concern for unusually sensitive people.

Scott, Minnesota's 5-year median AQI of 41 is right around the national average of 41 across the 1,020 monitored U.S. cities tracked here. Within Minnesota, Scott, Minnesota runs more polluted than the state average of 36 — local sources or geography are concentrating pollution above the state's typical reading.

For context within Minnesota: Cook, Minnesota currently holds the state's cleanest grade (A, AQI 12), while Cass, Minnesota sits at the bottom (C, AQI 32).

What's in Scott, Minnesota's Air?

The dominant pollutant in Scott, Minnesota is Ground-Level Ozone. Ground-level ozone forms when sunlight reacts with vehicle exhaust and industrial emissions. It is worst on hot, sunny, stagnant summer days. Ozone irritates the lungs, triggers asthma attacks, and reduces lung function — even healthy adults can feel chest tightness and shortness of breath after exercising in elevated ozone.

Days by Dominant Pollutant (2023)

PollutantDays as DominantShare of Year
Fine Particulate Matter (PM2.5)21960%
Ground-Level Ozone14640%

Is the Air Getting Better or Worse?

Air quality in Scott, Minnesota has been getting worse over the past decade, with median AQI climbing by roughly 1.4 points per year. That bucks the national trend of broad improvement, and most often reflects either growing wildfire smoke exposure (particularly across the West) or rising local emissions from population and freight growth.

In 2014, Scott, Minnesota posted a median AQI of 36. By 2023 that figure was 51 — a rise of 15 AQI points dirtier across 10 years of EPA records.

Year-by-Year AQI in Scott, Minnesota

YearMedian AQIGood DaysUnhealthy DaysDominant Pollutant
2014362550Ozone
2015343310Ozone
2016323280Ozone
2017343210Ozone
2018373062Ozone
2019382730Ozone
2020353071Ozone
2021392630Ozone
2022422820Ozone
20235117317PM2.5

Health Context for Scott, Minnesota

Across the past five years, this area has logged just 18 days where AQI rose into the "Unhealthy for Sensitive Groups" range or worse — about 4 days per year, or roughly one every other month. That is a low count by national standards.

Healthy adults can continue normal outdoor activity in most weather, but should pay attention to AQI alerts during the worst pollution windows. People with asthma, heart disease, or pregnancy should reduce prolonged or intense outdoor exertion on flagged days, and consider running an indoor HEPA air cleaner during peak season. Because ozone peaks in the afternoon on hot sunny days, plan outdoor exercise for early morning or after sunset on bad-air days.

How This Grade Is Calculated

The AirHistory Air Quality Grade combines four signals: the 5-year median AQI (40% of the score), the 10-year trend direction (30%), the count of unhealthy days per year (20%), and the dominant pollutant type (10%). All four come directly from the EPA Air Quality System (AQS), which aggregates readings from federally certified monitors. Read the full methodology.

Scott, Minnesota has an Air Quality Grade of C (fair) with a 5-year median AQI of 41. The dominant pollutant is Ground-Level Ozone, and air quality has been worsening over the past decade.

This answer pulls from the EPA Air Quality System (AQS), the authoritative federal source for U.S. air quality and pollution monitoring. The headline number above is the direct answer; what follows is the additional context most readers need to use the answer for a real decision rather than just a fact lookup.

A practical caveat: the headline answer above reflects the most recent the EPA Air Quality System (AQS) vintage; underlying data is often revised for months after first publication, and the right reference for any specific decision is whichever vintage is current at the time of the decision. The as-of date is stamped on every page.

Source: EPA Outdoor Air Quality Data, 2026.