Lancaster, Nebraska Air Quality
Lancaster County, Nebraska (NE)
→ 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 | 42 | 64 | 160 | 197 | 83 | 3 | Ozone |
| 2022 | 37 | 47 | 64 | 258 | 19 | 0 | Ozone |
| 2021 | 37 | 53 | 84 | 246 | 30 | 0 | Ozone |
| 2020 | 35 | 48 | 77 | 261 | 21 | 0 | Ozone |
| 2019 | 36 | 52 | 70 | 249 | 39 | 0 | Ozone |
| 2018 | 36 | 55 | 80 | 239 | 50 | 0 | Ozone |
| 2017 | 37 | 54 | 97 | 235 | 35 | 0 | Ozone |
| 2016 | 37 | 51 | 74 | 231 | 30 | 0 | Ozone |
| 2015 | 40 | 52 | 80 | 220 | 41 | 0 | Ozone |
| 2014 | 39 | 57 | 109 | 220 | 44 | 1 | Ozone |
What This Means for Lancaster County Residents
Lancaster, Nebraska has received an Air Quality Grade of B (67/100) based on a decade of monitoring data from the EPA's air quality monitoring program. The current median AQI of 42 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 Nebraska
Frequently Asked Questions
Lancaster, Nebraska has a current median AQI of 42, which falls in the "Good" range. The area has received an Air Quality Grade of B (67/100) based on 10 years of EPA monitoring data.
Air quality in Lancaster, Nebraska is stable over the past decade. The median AQI has changed by +3 points from 2014 to 2023.
Lancaster, Nebraska 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 Lancaster, Nebraska is Ground-Level Ozone. This is the dominant contributor to elevated AQI readings in the Lancaster County area.
Lancaster, Nebraska 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 42 (Good), outdoor exercise in Lancaster, Nebraska is generally safe year-round. Lancaster, Nebraska averages 1 days per year when athletes should move workouts indoors.