LAKELAND, Fla. \- The Florida Department of Health in Polk County (DOH-Polk) lifted the health alerts issued on May 23, 2024, for harmful blue-green algae toxins in Lake Hancock - South Central and Scott Lake - West.
Follow-up water samples tested by the Florida Department of Environmental Protection (DEP) did not detect algae toxins, indicating the public may resume water-related activities.
It is important that the public exercise caution as blue-green algae bloom status can change when conditions are favorable. Residents and visitors are advised to avoid contact with the water if they see algae blooms.
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The latest sampling results can be viewed on Protecting Florida Together.
What is Blue-Green Algae?
Blue-green algae are a type of bacteria that is common in Florida's freshwater environments. A bloom occurs when rapid growth of algae leads to an accumulation of individual cells that discolor water and often produce floating mats that emit unpleasant odors.
Blue-green algae blooms can also appear as scum, foam, or paint on the surface of the water in various colors. To learn more about the appearance of algae blooms, visit Protecting Florida Together.
Some environmental factors that contribute to blue-green algae blooms are sunny days, warm water temperatures, still water conditions, and excess nutrients. Blooms can appear year-round but are more frequent in summer and fall. Many types of blue-green algae can produce toxins. Blue-green algae may not always be visible as a bloom, but it can still be present in the water.
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Is Blue-Green Algae Harmful?
Blue-green algae can produce toxins, which can be harmful to human and pets as well as ecosystems, including fish and other aquatic animals. Sensitive individuals (e.g., children, the elderly and those who are immunocompromised) may still be at risk even at low concentrations and should avoid any exposure.
For additional information on potential health effects of algae blooms, visit DOH's harmful algae blooms webpage.
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