Columbus, OH Air Quality
Report & Trends
Analysis & History
The Verdict
This places Columbus, OH in the bottom 27% of US cities for air quality.
Historically, October brings the highest volume of particulate matter.
Health Recommendation
Sensitive groups should consider monitoring daily forecast apps significantly closer.
10-Year Annual PM2.5 Average
Analysis: Annual average Median AQI from 2015 to 2025.
With a median PM2.5 score of 52, Columbus, OH residents frequently face "Moderate" to "Unhealthy" air days. Despite seasonal fluctuations, year-over-year averages have remained consistent.
Seasonal Risk Calendar
The "Smoke Season" Calendar
Values represent historical Average Monthly AQI (PM2.5). Higher is worse.
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Common Questions
When is the worst time for air quality in Columbus, OH?
Based on 10 years of data, the worst months for air quality in Columbus, OH are: October (AQI 67.2), August (AQI 62.4), June (AQI 60.9). These months typically see the highest concentrations of PM2.5 due to fine particulate matter trapped by local geography.
Is it safe to move to Columbus, OH given the air quality?
Yes, but with caveats. Columbus, OH offers an incredible quality of life, but new residents should be aware of the "pollution season." Most homes in the area need robust air filtration systems to maintain safe indoor levels during these few weeks a year.
How is the air quality changing in Columbus, OH?
It is holding steady. While some seasons see short-term spikes, the long-term annual average for Columbus, OH has remained consistent over the last decade, avoiding the sharp declines seen in other parts of the region.
Do I really need an air purifier in Columbus, OH?
Based on the 10-year analysis, absolutely. The levels of PM2.5 recorded during peak events are unsafe for indoor occupation without filtration. A CADR-rated purifier is considered essential appliance for Columbus, OH households.
How accurate is this data?
This report is built on official EPA Air Quality System (AQS) data. We aggregated daily summary files from 2014 to present to build these charts. Unlike real-time apps that estimate, this is the verified historical record.
Is Columbus, OH safe from other disasters?
Air quality is just one factor. Check our sister site for a complete analysis of tornado, hurricane, and flood risks.
Full Safety Report →Summary
This report isn't meant to scare, but to prepare. Columbus, OH has a bright future, provided its citizens take air quality seriously.