JACKSONVILLE, Fla. — The Florida Department of Health in Duval County has issued a health alert for the presence of red tide near Ft. George Inlet.
The alert follows the analysis of a water sample taken on Aug. 6, 2026. Health officials are advising residents and visitors to exercise caution in and around the affected area.
Red tide is caused by high concentrations of Karenia brevis, a microscopic, toxin-producing dinoflagellate found in the Gulf of Mexico. The organism produces potent neurotoxins known as brevotoxins, which can cause eye, skin and respiratory irritation in humans.
Red tide typically forms naturally offshore in late summer or early fall before being carried into coastal waters by winds and currents. At high concentrations, K. brevis cells can discolor the water, giving it a red or brown hue.
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Health officials advise against wading or swimming in or near red tide, as exposure can cause skin irritation, rashes and sore or burning eyes. Anyone who comes into contact with red tide should wash their skin and clothing with soap and fresh water, particularly those with easily irritated skin.
Informational signage is posted at most public beaches and current water quality status is accessible through the state website, Protecting Florida Together.
People with chronic respiratory conditions, children, the elderly and immunocompromised individuals face a higher risk of experiencing severe symptoms from airborne toxins released by wind and wave action. High-risk individuals should remain cautious and stay away from the affected area.
Residents living near beach areas are advised to keep windows closed and run air conditioning units with properly maintained filters.
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The health department warns against harvesting or consuming molluscan shellfish, as well as distressed or dead fish from the location. Fish caught alive and healthy are safe to eat provided they are filleted, their guts are discarded and the fillets are rinsed with tap or bottled water.
Pets and livestock must also be kept away from affected waters and sea life, as red tide can cause illness or death in animals. Pets that swim in contaminated waters should be washed with soap and water as soon as possible.
Symptoms from exposure to harmful algae blooms or aquatic toxins can be reported to human health specialists at the Florida Poison Information Center by calling 800-222-1222.
Fish kills, disease or abnormally behaving wildlife should be reported to the Florida Fish and Wildlife Conservation Commission online or at 800-636-0511.
Residents with other health questions regarding the bloom can contact the local health department at 904-253-1280, or call 866-300-9399 for a recording on statewide conditions.
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