Air Quality in Oklahoma City, Oklahoma — Live

Live readings from PurpleAir sensors across Oklahoma City — with free alerts the moment ozone season turns unhealthy.

Live Oklahoma City AQI from nearby PurpleAir sensors loads when this page opens in a browser, along with a live sensor map covering Oklahoma City and Norman, Edmond, Moore, Midwest City.

Oklahoma City's air is usually unremarkable, and that is genuinely good news: the city sits on wide-open plains with no valley or mountain ring to trap anything, so most days the wind just carries pollution on through. The recurring problem is ground-level ozone. Hot summer afternoons, heavy traffic at the I-35/I-40 crossroads, and emissions from the region's oil and gas industry combine often enough that the Association of Central Oklahoma Governments (ACOG) runs a standing Ozone Alert program to warn residents before the air turns unhealthy.

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.

Central Oklahoma runs its own Ozone Alert program

ACOG issues a Central Oklahoma Air Quality Alert Day whenever forecasters expect ozone to climb into unhealthy territory across the eight counties of the metro region, including Oklahoma, Cleveland, and Canadian counties. On alert days, the program asks residents, businesses, and industry to voluntarily cut ozone-forming emissions — carpool instead of driving alone, refuel after dark, put off mowing the lawn — the same playbook used by similar voluntary programs in cities trying to stay ahead of a federal nonattainment designation.

The incentive is real money, not just air-quality bragging rights. ACOG's own Cost of Nonattainment Study estimates that if the Oklahoma City metro area is ever formally designated in violation of EPA ozone standards, the resulting permitting restrictions and compliance costs could run the region $9.6 to $15.2 billion over the next 20 to 30 years. That is the reason the alert system exists at all: staying voluntarily under the line is far cheaper than falling under it.

Summer heat and traffic are what actually drive a bad air day here

Ozone season in Oklahoma City runs from roughly April through November, tracking the roughly 145 days a year the city spends above 80°F — heat is the ingredient that cooks vehicle and industrial exhaust into ground-level ozone. The number of unhealthy-for-sensitive-groups days has moved with that trend: air-quality tracking shows just 5 such days in 2015 climbing to 45 by 2018, and state-of-the-air reporting has graded the metro an F for high-ozone days over recent three-year tracking periods.

The two biggest contributors are straightforward. Oklahoma City's roughly 2.3 million daily vehicle trips, funneled through the interchange of I-35 and I-40 near downtown, are the leading source of the region's air pollution. Add to that the exhaust and venting from central Oklahoma's active oil and gas production, plus wind-blown dust off the farmland and cattle country that surrounds the metro, and you get the recurring mix behind the city's worst days.

The open plains help, but they don't erase the problem

Oklahoma City sits at about 1,198 feet elevation in the Sandstone Hills, a landscape of gentle 250-to-400-foot rises rather than anything resembling a basin. The North Canadian River, renamed the Oklahoma River inside city limits, cuts through downtown, but there is nothing about the terrain that traps air the way a valley does in parts of California. Prevailing winds out of the south and south-southeast through summer, shifting northerly in winter, usually keep pollution moving rather than letting it pool.

That openness is why Oklahoma City has a real claim to being, in its own description, one of the larger US cities generally in compliance with the Clean Air Act — but it does not make ozone season disappear. On hot, high-pressure, low-wind afternoons the same air that would normally clear out instead sits and cooks, and fine-particle data has moved the same direction: the city's PM2.5 average rose to 9.5 micrograms per cubic meter in 2020, up 4.4 percent from the year before. Wind helps Oklahoma City more than it helps a lot of cities Canairy covers — it just isn't a guarantee.

Oklahoma City air quality FAQ

What is the air quality in Oklahoma City right now?

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

Why does Oklahoma City have ozone alert days in summer?

Ozone season here runs roughly April through November, when the city's 145-plus days above 80°F provide the heat that turns vehicle and industrial exhaust into ground-level ozone. ACOG, the regional government association, forecasts these days in advance and calls a Central Oklahoma Air Quality Alert Day so residents and businesses can voluntarily cut back on emissions before the air actually turns unhealthy.

What causes Oklahoma City's worst air quality days?

Mostly heat combined with traffic and industry. The metro's roughly 2.3 million daily vehicle trips through the I-35/I-40 crossroads are the single biggest source, joined by emissions from central Oklahoma's active oil and gas production and, on windy days, dust blown in from the surrounding farmland and ranch country. Unlike many cities Canairy covers, wildfire smoke is not the driving story here.

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 Oklahoma City data come from?

Readings come from PurpleAir's network of laser particle sensors across Oklahoma City 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.