Louisville regulators have issued an air quality alert for Saturday, Sunday and Monday, warning that ozone levels will be high enough to be unhealthy for sensitive groups like children, the elderly and people with breathing disorders.
So far, the city's ozone season hasn't been off to a great start. The federal standard for ozone was tightened this year, and that combined with heat and stagnant air has meant Louisville has already had nine days that exceeded the standard.
An air quality alert doesn't necessarily mean ozone levels will top the standard--just that regulators believe there's a potential for that to happen. The Air Pollution Control District recommends that on air quality alert days, people take steps to avoid pumping excess pollution into the air.
Regulators suggest taking public transportation, not using gas-powered lawn mowers and combining your errands into one trip.
For real-time air quality information, click here.