What is an action day?

Air pollution is a problem that affects everyone. Even small changes can have big impacts on air quality.

You may have heard of Knozone Action Days in Central Indiana, but you might be less familiar with what exactly ozone is or what you’re supposed to do when it hits peak levels. A Knozone Action Day means the air quality may become unhealthy for everyone, but certain groups including children and the elderly should avoid spending a lot of time outside. People with concerns about how air pollution affects their health should contact their doctor.

Knozone season” in central Indiana runs from March through October, as ground-level ozone is more prevalent during the warmer months. 

See below for things you can do on Action Days to help!

Action Day Tips

Refuel vehicles after 7pm.

When you pump gasoline into your car tank or a gas can, some escapes as fumes. On hot summer days, these emissions can react with sunlight and heat to form ground level ozone. Refueling after 7pm prevents emissions from escaping during the hottest hours of the day when they’re most likely to form ozone.

Delay using powered lawn equipment — including mowers — until after 7pm.

Someday, hopefully soon, we may see our energy grid powered completely by renewable energies like wind and solar. Until then, though, anything that runs on power — gas, electricity, etc. — runs on fossil fuels at some level and releases emissions when used.

Don’t let your vehicle idle.

Letting your car idle for longer 10 seconds releases more emissions than simply restarting. Avoid heavy traffic times, drive-thru lanes, and any other idling on Action Days.

Choose a cleaner commute.

Walk, ride a bike, take public transit or hitch a ride with a carpool to prevent or minimize emissions from driving.

Set the thermostat a couple degrees higher.

Not only is it easier on your utility bill, saving the energy it takes to run your AC full blast reduces emissions and ozone.

Combine errands to reduce trips back and forth.

You’ll save emissions and time. It’s a win-win.

Delay your use of garden, household, and workshop chemicals until air has returned to healthy levels.

Some contain volatile organic compounds(VOCs) that may react with sunlight and heat to form ozone.

Tell others about Knozone Action Days and how they can help.

Central Indiana is our home. It belongs to all of us, and preserving the quality of our air is our shared responsibility. Pass this information along to your friends and family, and tell them about ways they, too, can make a positive impact.