DESTIN, Fla. -- Some scientists WEAR News spoke with Friday say blue-green algae can be harmful for people and pets.
Blue green algae bacteria is common in Florida's freshwater environments because it thrives on warm temperatures and sunlight.
That algae has popped up in a lake in Destin. The Florida Department of Health is advising people to stay out of the water. Blue-green algae can be toxic.
Signs like the one above have been popping up around Kell-Air Lake in Destin. It's a health alert, warning folks about blue-green algae in these waters.
The Florida Department of Health says this week testing is underway after it discovered the presence of blue-green algae in Spring Lake-North End in Destin.
The department is advising visitors and residents not to drink it or swim in it.
"There are a variety of species of blue-green algae or cyanobacteria, as we call them," said Dr. Allison Robertson, associate professor at University of South Alabama and senior marine scientist at Dauphin Island Sea Lab.
Robertson says blue-green algae can bloom in fresh water, brackish water, or even marine waters. She says many of the species have the potential to produce natural toxins.
"That's where it becomes a concern, if they're blooming," said Robertson.
Environmental scientist Sava Varazo says the algae is naturally grown material and it's sometimes used in products, like make-up and skincare. But if it's toxic, it can cause a variety of problems for your health.
"It can become a health issue, especially if you've got an immune system that's compromised a little bit," Varazo said. "And it can cause vomiting. It can cause nose irritation, eye irritation, earache irritation and you're surely doing not want to ingest it."
"Some of the toxins can cause dermal problems, so issues with the skin," Robertson said. "So that can cause irritation or rashes."
It can also become toxic to pets and fish.
"I've known of cases where dogs have gone in the water in freshwater ponds and drank it and came out very lethargic, very dizzy," Varazo said. "Look like they're about to die. And in some cases they did die."
"It's probably best for folks to just focus on catch and release, if you're going to go fishing in the next few days," Robertson said.
The algae thrives in warm temperatures, sunlight, and nutrients in the water. Brady McCann lives near the lake.
"I mean, of course, it's surrounded by houses," McCann said. "People fertilize their yard, so it makes that algae bloom."
He says he won't swim in the lake, but he may keep using his paddle board.
"Granted, I like to wash that lake water off me kind of soon," McCann said.
The department of health is also advising against eating shellfish in waters with algae blooms and keeping your pets away from the area to avoid contact with the water. And if you do come in contact with it, wash your skin and clothing with soap and water.
For additional information on the health effects of algae blooms, you can visit the Florida Department of Health's harmful algae bloom webpage.