The Evansville EPA has issued another Ozone Alert for this weekend.
The city has already violated federal ozone standards three times this month.
The new alert is in effect Saturday, Sunday, and Monday – the first day of summer.
Evansville EPA Director Jacob Keating tells WNIN that sunny and warm conditions -- with little or no wind -- may create unhealthy ozone levels for sensitive groups, like children, the elderly, and persons with lung or heart conditions.
He urges those groups to limit time outdoors, stay cool, and stay hydrated.