HILLSBOROUGH COUNTY, Fla. – Hillsborough County’s Environmental Protection Commission activated an Air Pollution PRECAUTION today, April 17, 2025, because ground-level ozone concentrations have risen above normal levels. The general population currently experiences safe air quality levels but sensitive groups remain vulnerable to potential effects.
Elevated ozone levels in the county trigger the precautionary statement because this pollutant adheres to National Ambient Air Quality Standards established by health criteria from the US EPA. Oxides of nitrogen (NOx) and volatile organic compounds (VOCs) undergo chemical reactions to produce ground-level ozone instead of being directly emitted into the atmosphere.
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Most of these pollutants originate from vehicle emissions and industrial operations and undergo chemical reactions that increase ozone concentrations during sunny and hot weather in city environments.
Ground-level ozone primarily impacts children and the elderly as well as people of any age who suffer from lung conditions like asthma. Sensitive group members should think about lessening their outdoor activities that require prolonged or intense exertion this afternoon and evening because the Air Quality Index presently ranges between 51 and 100 which is moderate.
The Environmental Protection Commission of Hillsborough County continues to monitor ozone levels and promises to inform the public via media if the air quality reaches unhealthy levels. The air quality alert remains active until 12:00 AM on April 17, 2025.
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The conditions responsible for today’s high ozone levels are forecasted to continue into tomorrow.
Members of the public seeking clarification or additional details should reach out to Missy Smith from the Environmental Protection Commission’s Air Division at (813) 627-2600 x1205.
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