First Ozone Action Alert of the season issued for Thursday, June 19

The MARC Air Quality Program has issued an orange Ozone Action Alert for Thursday, June 19, 2025. This alert indicates that an unhealthy level of ground-level ozone is expected tomorrow in the Kansas City region. 

“The first Ozone Action Alert for this year’s ozone season in the Kansas City region is just days before the first day of summer on Friday,” said Karen Clawson, air quality program manager. “If you have not signed up to receive SkyCast forecasts and Ozone Action Alerts, now is a good time to do so.” 

Ozone pollution is formed when emissions from vehicles, lawn and garden equipment, and other sources react in heat and sunlight. Environmental factors — such as warm, sunny weather; low wind speeds; and lack of rain — increase the likelihood of poor air quality. 

The two most important things residents should do on Ozone Action Alert days are:

1. PROTECT YOUR HEALTH

   Ozone pollution can cause a variety of problems — even in healthy adults — including chest pains, coughing, nausea, throat irritation and difficulty breathing. People who are sensitive to air pollution, including children, older adults and people with breathing or heart problems, should limit outdoor activity between 10 a.m. and 7 p.m. Everyone should consider scheduling outdoor activities before 10 a.m. or after 7 p.m.

2. REDUCE POLLUTION

   More than half of all emissions that lead to ozone pollution are caused by everyday activities such as driving and yard work. To help reduce air pollution, you can postpone mowing and wait until evening to refuel vehicles. If you live close to where you work, consider riding a bike or walking instead of driving. Both options produce zero emissions and the exercise is great for your health. Try to schedule walking and biking trips before 10 a.m. or after 7 p.m., and avoid prolonged exposure to outdoor air.