The Missouri Department of Natural Resources beings its ozone monitoring season April 1st.  23 air monitors are set up around the state to see if the air quality meets federal standards set by the Environmental Protection Agency.  DNR spokesperson Renee Bungart says as the weather warms up, ground level ozone, better known as smog, becomes much more common.

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Bungart says ground level ozone can cause health concerns, even in healthy people.

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Bungart adds people can take steps to reduce the creation of ozone, including keeping vehicle tires properly inflated to keep from using too much gasoline, using public transportation or walking, waiting until cooler times of the day to use gas-powered lawn equipment.