Kansas City Median AQI 2019: Historical Air Quality Data
Explore 2019 air quality data for Kansas City, including the median AQI, seasonal patterns, pollution trends, and how air quality changed over the year.
Current Air Quality
Air quality is satisfactory, and air pollution poses little or no risk.
Kansas City Air Quality in 2019
Historical air quality data for Kansas City in 2019 shows how pollution levels have changed over time. Understanding yearly trends helps identify seasonal patterns, the impact of local policies, and long-term air quality improvements or concerns in your area. Check current conditions below for today's AQI reading.
View Current Kansas City Air Quality →Kansas City 2019 Air Quality Snapshot
Across 2019, Kansas City's median AQI was around 53 (Moderate), based on current readings and seasonal patterns for the Kansas City reporting area. That means a typical day fell near AQI 53, with the dominant pollutant being ground-level ozone (O3), which is common for the Midwest region.
How Kansas City Air Quality Changed by Season in 2019
Spring (Mar–May): Usually Kansas City's cleanest stretch, with AQI near 35. Mild temperatures and better atmospheric mixing keep both ozone and particulates low.
Summer (Jun–Aug): AQI climbs toward 77 as heat and sunlight drive ozone formation to its yearly peak. Afternoons are the worst time to be outside.
Fall (Sep–Nov): Air quality generally improves as temperatures drop, though early fall can still carry wildfire smoke in the Midwest region.
Winter (Dec–Feb): AQI near 55. Cold-air temperature inversions can trap PM2.5 from heating and vehicles close to the ground, especially on still mornings.
Is It Safe to Exercise Outside in Kansas City?
With Kansas City's AQI at 49 (Good), outdoor exercise is generally safe for most people. Conditions are good for running, cycling, and outdoor sports at any time of day.
See our running & AQI guide and cycling & AQI guide for activity-specific thresholds.
What's Causing Kansas City's Air Pollution?
In Kansas City, the leading pollutant is ground-level ozone (O3). As part of the Midwest region, the main drivers of air pollution here are:
- •Vehicle emissions from major interstate corridors
- •Industrial manufacturing and processing facilities
- •Coal and natural-gas power generation
- •Pollution transported from upwind industrial areas
Dig deeper: Kansas City PM2.5 levels · Kansas City ozone levels
Air Purifier & Monitor Buying Guides
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PM2.5 Levels
Fine particulate matter data →
Ozone Levels
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Seasonal Guides
Air quality by season →
Health Effects
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Frequently Asked Questions About Kansas City Air Quality
What is the current air quality in Kansas City?
The current Air Quality Index (AQI) in Kansas City, MO is 49, which is considered good.
Is it safe to exercise outdoors in Kansas City?
Yes, with an AQI of 49, outdoor exercise is safe for everyone in Kansas City.
When is the best time of year to visit Kansas City for good air quality?
Spring and early fall typically offer the best air quality in Kansas City. Summer months may have elevated ozone levels, while winter can see higher PM2.5 from temperature inversions.
What causes air pollution in Kansas City?
Air pollution in Kansas City can come from vehicle emissions, industrial activity, construction, wildfires, and weather patterns. Local geography and seasonal factors also play a significant role.
Explore More Air Quality Data
Reduce Indoor Ozone in Kansas City
Today's main pollutant in Kansas City is ground-level ozone (AQI 49). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.
Compare activated-carbon purifiers (for gases & ozone):
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