LOUISVILLE, Ky. — Plans for the unofficial start of summer traditionally kick–off after Memorial Day, and that means lots of time outdoors.

The city of Louisville issued an air quality watch for Tuesday, May 30, and many people are on high alert.

“Before we come, we make sure that we take a couple of breaks. Even though she’s having a lot of fun, still pull her to the side and let her rest for a little bit and have a drink or two here,” said Tiffany Miller, a mother and a registered nurse.

Miller’s six-year-old loves the outdoors.

“I’m an R.N. I do travel local right now, but I’m also a nurse practitioner,” Miller said.

But aside from sunburns, Miller said it’s even more important to hydrate.

“Make sure that they’re drinking every so often water or even something like Gatorade or Power Aid. Also, even for the elderly population that’s out in the heat, like the little ones can even wear hats to help protect them from the sun or shirt over their bathing suits and make sure they’re having they have plenty of sunscreen applied,” Miller said.

Across the city of Louisville is an air quality watch alert. It’s for children, older adults, those with asthma, COPD and other breathing ailments, and people who are active outside. The city said they expect ozone pollution to be at unhealthy levels for these sensitive groups.

Miller said even heart patients should take extra precautions.

“Just keep an eye on them, especially if they’re outdoors in the sun. Hydration is important for them as well, due to the electrolyte imbalances of becoming dehydrated,” Miller said. “Oftentimes when there are certain electrolytes like potassium and magnesium are depleted, it can cause cardiac arrhythmias.”

City officials urge Kentuckians to take more breaks and do less intense activities when spending time outdoors. Sunny, warm, still and dry conditions help create ozone layers, and officials said the ozone season runs from March to October.