Overview:
- Detroit ranks 39th worst in the nation for ozone pollution, six spots worse than last year, according to the American Lung Association's 2026 State of the Air report
- The Sierra Club has filed notice to sue the EPA for missing its deadline to determine whether Detroit meets federal ozone standards
- Ozone levels peak on hot, sunny afternoons from May through September—the same time kids are most active outdoors—and can trigger asthma attacks and inflame airways
Summer is coming, and so is ozone season. Two pieces of news this month made it clear Detroit’s air isn’t getting better. Here’s what families need to know before the kids head outside for the next four months.
What’s happening
If you’re a parent in metro Detroit, two things happened this month that are worth holding together. The Sierra Club filed notice that it intends to sue the EPA over Detroit’s air, because the agency missed its deadline to decide whether Detroit meets federal ozone standards. Around the same time, the American Lung Association gave Detroit an F in its 2026 State of the Air report, ranking the Detroit–Warren–Ann Arbor area 39th-worst in the country for ozone, six spots worse than last year.
The lawsuit and the report point to the same thing from different angles. One says the system meant to protect us isn’t moving fast enough. The other says the air, measured honestly, is getting worse. For families, that lands in a specific place: the season when kids most want to be outside is also the season the air is hardest on their lungs, and the adults whose job it is to fix that are, at best, behind.
Read Brian Allnutt’s full reporting on the lawsuit here:
Sierra Club to sue EPA over Detroit ozone status
The Sierra Club plans to sue the EPA for missing a deadline to determine whether Southeast Michigan meets federal ozone standards, as new monitoring data shows air quality may be worsening across the region.
Why families should care
Ozone season runs May through September, the entire window when kids actually want to be outside. A few things worth knowing:
- Ozone peaks on hot, sunny days. The days kids want to be outside the most are often the worst air days.
- It inflames airways, triggers asthma attacks, and worsens lung disease.
- Kids and older adults are hit hardest.
- Levels are highest in the afternoon, which is the same window as most practice and recess schedules.
- In metro Detroit, monitors near Detroit, Oak Park, and Port Huron have been showing higher levels in recent years.
What you can do
- Check the AQI before practice or extended outdoor play. Use the AirNow app or AirNow.gov. Planet Detroit’s website also shows the current air quality at the top of the site. Green and yellow are fine for most kids. Orange means kids with asthma should take it easy. Red means everyone should stay in.
- Bookmark Planet Detroit’s Air Pollution Near Me map for neighborhood-level readings.
- If your kid has asthma, ask the pediatrician for a summer action plan now, before a code-orange day catches you off guard.
- Submit a public comment on the Marathon Petroleum and MPLX terminals’ air permits. Open through June 11. One link, two minutes.
How to talk to your kids about ozone season in Metro Detroit
Under 6: Keep it concrete and low-stakes. “Some days the air gets a little smoggy from cars and weather. We check it like we check the weather. On smoggy days, we play inside or pick something easy outside.” That’s it.
Elementary: Make them the air-checker. Open the AirNow app, and have them read the number aloud before practice. You’re the air captain today. Frame it as a job, not a worry.
Middle school: They can handle the real version. Ozone isn’t pollution from a single source. It forms when sunlight hits emissions from cars, factories, and other sources. Then connect it to civics: there are people whose job it is to keep this in check, and there’s a real fight right now over whether they’re doing it.
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