EnviroNearby

Kandiyohi County, Minnesota air quality history

Daily Air Quality Index summaries from EPA monitors in Kandiyohi, Minnesota, 2000–2003.

84%
Good days in 2003
28
Median daily AQI, 2003
2
Days above 100 in 2003
118
Days with an AQI in 2003 (of 365)

In 2003, EPA reported a daily Air Quality Index (AQI) for Kandiyohi, Minnesota on 118 days. 99 of those days (84%) were in the Good range, and the median daily AQI was 28. That median is lower than the typical monitored county in Minnesota (median 45.5 across 14 counties), and lower than the typical monitored U.S. county (44). The main pollutant was coarse particles (PM10) on 118 days.

EPA did not report an AQI for every day of 2003 here (118 of 365 days). Figures describe monitored days only; seasonal monitoring (for example, ozone measured only in warmer months) can make a county look cleaner or dirtier than a full-year record would.

The most recent year with data for this county is 2003; EPA's files for 2004–2025 contain no row for it, which usually means its monitors stopped reporting.

Years with fewer than 120 monitored days (2000, 2001, 2002, 2003) are shown in the table but left out of comparisons and trend statements.

How the days broke down each year

Each bar is one year. The colored segments show the share of monitored days that fell in each AQI category.

Share of monitored days in each AQI category, by year0%25%50%75%100%2000: Good 16 of 23 days2000: Moderate 7 of 23 days20002001: Good 74 of 105 days2001: Moderate 29 of 105 days2001: Unhealthy for Sensitive Groups 1 of 105 days2001: Unhealthy 1 of 105 days20012002: Good 94 of 111 days2002: Moderate 17 of 111 days20022003: Good 99 of 118 days2003: Moderate 17 of 118 days2003: Unhealthy for Sensitive Groups 2 of 118 days2003
  • Good
  • Moderate
  • Unhealthy for Sensitive Groups
  • Unhealthy
  • Very Unhealthy
  • Hazardous

Typical and high-end AQI over time

The median is the middle day of the year. The 90th percentile is the level that only the highest 10% of days exceeded.

Median and 90th-percentile daily AQI, by year0501002000: 90th percentile AQI 682001: 90th percentile AQI 692002: 90th percentile AQI 532003: 90th percentile AQI 552000: Median AQI 312001: Median AQI 332002: Median AQI 252003: Median AQI 282000200120022003
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 2003

On each monitored day, the AQI reflects whichever measured pollutant had the highest index. This counts how many days each pollutant set the AQI. A pollutant that was not measured here cannot appear.

PollutantDays as main pollutantShare of monitored days
Coarse particles (PM10)118100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2003118991720002855128PM10
200211194170000255381PM10
2001105742911003369151PM10
2000231670000316894PM10

What this data can and can’t tell you

It is a county-level summary. EPA reports one AQI per day for the county, based on the monitors operating there. Air at a particular street, school or home can differ, especially near roads, industry or wildfire smoke.

It is not a health assessment. The AQI is EPA’s scale for communicating daily air quality. A county’s history can’t tell you what the health risk is for any particular person. For daily conditions and health guidance, see AirNow.

Rules change over time. EPA has revised AQI breakpoints, most recently for fine particles in 2024, so some year-to-year change can reflect the scale rather than the air.

All monitored counties in Minnesota

Source: U.S. EPA AirData, “Annual AQI by County” files for 2000–2003 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem