Air Quality in Covington, Kentucky — Live

Live readings from PurpleAir sensors across Covington — with free alerts when ozone or valley haze pushes the air quality down.

Live Covington AQI from nearby PurpleAir sensors loads when this page opens in a browser, along with a live sensor map covering Covington and Newport, Fort Wright, Fort Mitchell, Erlanger.

Most of the year, air in Covington is unremarkable in the best way, but the city sits at the bottom of the Ohio River valley directly across from Cincinnati, and that geography does it no favors. On hot, still summer days the valley traps its own vehicle and industrial exhaust long enough to cook up ground-level ozone, and the Cincinnati-Wilmington metro area — which includes Kenton County — has been graded F for both short-term and year-round particle pollution in the American Lung Association's 2026 State of the Air report, ranking 31st worst in the country for short-term particle pollution and 17th worst for year-round particle pollution.

Canairy watches the sensors around your home, your kids' school, and everywhere else you care about, and tells you in plain English when the air changes enough to matter.

The valley traps its own traffic and industry

Covington sits on the south bank of the Ohio River, hemmed in by the same river-valley terrain that shapes downtown Cincinnati directly across the water. Interstates 71 and 75 merge and cross the river right through the middle of the city, so a steady stream of highway traffic runs within blocks of downtown Covington and MainStrasse. Fifteen miles south, in Boone County, Cincinnati/Northern Kentucky International Airport is DHL's largest global air hub and a major Amazon Air hub as well, adding a constant flow of cargo jets and diesel trucking to the region's background emissions.

On hot, humid, windless days that traffic and industry have nowhere to go. The Ohio River valley is prone to trapping pollutants during stagnant weather, which is a big part of why the Cincinnati-Wilmington metro area — Kenton, Boone, and Campbell counties included — has repeatedly earned failing grades from the American Lung Association for particle pollution, landing among the 20 worst metro areas in the country for year-round PM2.5 in the 2026 report.

Ozone season runs through the hottest months

Ground-level ozone forms when vehicle and industrial emissions cook in strong sun and heat, and Cincinnati-area officials have pointed to ozone, not particle pollution, as the main driver of the region's worst air-quality-alert days each summer. The Southwest Ohio Air Quality Agency, which covers the Ohio side of the metro and coordinates with Kentucky agencies on regional alerts, typically issues its ozone action-day warnings between May and September, urging people to drive less and refuel after dark on the worst days.

For Covington, that means the muggy stretches of July and August are the months worth watching most closely, especially for kids, older adults, and anyone with asthma. A single afternoon of heat and light wind can push ozone into the Unhealthy for Sensitive Groups range even when the morning looked perfectly clear.

June 2023 showed what smoke from far away could do

Covington had never seen anything quite like the last week of June 2023, when smoke from Canada's record wildfire season drifted more than a thousand miles south and settled over the entire Cincinnati-Northern Kentucky region. The Southwest Ohio Air Quality Agency issued air quality alerts starting June 28, and by the next day the average AQI across the metro reached 188 — Unhealthy for the general public, not just sensitive groups, and the highest reading the region had recorded since the EPA began tracking the modern AQI around 2000.

The city of Cincinnati's health department urged residents on both sides of the river to stay indoors and keep windows shut, and Covington schools and outdoor events across Northern Kentucky adjusted plans as the haze settled in. It was a one-time event rather than an annual pattern, but it proved that a fire thousands of miles away can matter more to the air over Covington than anything happening locally that week.

Covington air quality FAQ

What is the air quality in Covington right now?

This page shows the current AQI for Covington, calculated from PurpleAir sensors across the city and updated continuously. The map below shows every live sensor, so you can check the reading closest to your own neighborhood.

Why does Covington get hazy in summer?

Summer heat and strong sun cook vehicle and industrial emissions into ground-level ozone, and the Ohio River valley's stagnant-weather pattern lets it build up rather than clear out. The Southwest Ohio Air Quality Agency typically issues ozone action-day alerts for the region between May and September, with July and August usually the worst months.

Did Canadian wildfire smoke ever reach Covington?

Yes. In late June 2023, smoke from Canada's wildfires drifted over the entire Cincinnati-Northern Kentucky region, pushing the average AQI to 188 on June 29 — the highest reading on record since the EPA began tracking the modern AQI around 2000. It was a rare event, not a yearly pattern, but it showed how far wildfire smoke can travel.

What AQI level is unhealthy?

Under the US EPA scale, AQI 0-50 is Good and 51-100 is Moderate. From 101 the air is Unhealthy for Sensitive Groups - kids, older adults, and people with asthma or heart conditions - and above 150 it's Unhealthy for everyone. Canairy translates these numbers into a plain-English verdict, like whether to close the windows or move a workout indoors.

Where does Canairy's Covington data come from?

Readings come from PurpleAir's network of laser particle sensors across Covington and surrounding towns, cross-referenced with government monitors and the Google Air Quality API. You can see every sensor behind your numbers on the live map - there's no black box.

Is Canairy free?

Yes. The Canairy app is free to download and includes live air quality for all your saved places, plain-English verdicts, and free push alerts when the air crosses your threshold. A paid plan adds extras like SMS text alerts.

Get Canairy free on Google Play.