The Florida Department of Health in Osceola County is urging caution after blue-green algae was detected at the Joe Overstreet Road Boat Ramp on Lake Kissimmee. Water sample testing is currently underway to determine whether toxins are present, but officials warn that environmental conditions can shift rapidly, and caution should be taken regardless of confirmed results.
Blue-green algae, which are common in Florida’s freshwater systems, can produce harmful toxins that pose risks to humans, pets, and wildlife.
DOH-Osceola advises the public and visitors to Lake Kissimmee to take the following precautions:
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Avoid drinking, swimming, wading, or using personal watercraft in areas where algae blooms are visible.
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Wash thoroughly with soap and water if you come into contact with algae or discolored, foul-smelling water.
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Keep pets and livestock away from water near visible blooms and provide an alternative water source.
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Do not cook with or wash dishes using contaminated water — boiling does not eliminate toxins.
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Fish fillets from freshwater lakes experiencing blooms may be eaten if cleaned and cooked thoroughly. Discard the guts and rinse the fillets in clean water.
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Do not consume shellfish harvested from waters with active algae blooms.
Blue-green algae blooms may appear as discolored water, floating mats, scum, foam, or even paint-like streaks, often with a strong odor. While they occur more frequently in warmer months, blooms can develop year-round. Conditions such as warm temperatures, stagnant water, sunlight, and excessive nutrients contribute to their formation.
Sensitive populations — including children, the elderly, and those with compromised immune systems — may be more vulnerable even at low toxin levels and should avoid any exposure.
For ongoing updates and water sample results, visit the Florida Department of Environmental Protection’s Algal Bloom Dashboard or the Protecting Florida Together website.
To report algae-related issues:
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Algae Blooms: Contact DEP at 1-855-305-3903 or report online
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Human Health Concerns: Call the Florida Poison Information Center at 1-800-222-1222
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Animal Illness: Contact your veterinarian
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Fish Kills: Report to the Florida Fish and Wildlife Conservation Commission at 1-800-636-0511
For more health-related questions about blue-green algae, call the Florida Department of Health in Osceola County at 407-742-8600.
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