This layer displays the percentage of days (in a single year) with the maximum 8-hour average ozone concetration above the National Ambient Air Quality Standard (NAAQS) of 0.070 parts per million.

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All Things Missouri is an interactive destination for community leaders and decision makers developed by the Center for Applied Research and Engagement Systems in collaboration with the University of Missouri Extension and Engagement. Populated with both national and local data, the site features interactive maps, reports and resources to serve all cities and counties across the state of Missouri. Information is categorized across four main categories informing leaders in business, agriculture, education, and health about local policies and practices that drive better outcomes for all.

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