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The Florida Department of Health works to protect, promote, and improve the health of all people in Florida through integrated state, county, and community efforts.

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HABs/Red Tide

Environmental Health

  •  239.252.5530



    Mailing Address

    3339 Tamiami Trail East 

    Bldg H Ste. 302 

    Naples, FL 34112  

Algae are plant-like organisms that sustain marine life. They contribute to the food chain and to the oxygen that keeps water bodies healthy. But sometimes, when conditions are right—warm water and increased nutrients—certain algae can quickly grow and overpopulate. These foam- or scum-like masses are called blooms, and can be pushed to the shore by winds, waves, tides and currents. Some blooms release toxins that make ecosystems, animals and people sick: scientists call these harmful algae blooms or HABs. In Florida, we find HABs along our saltwater, freshwater and brackish water bodies. To learn more about HABs, follow this link HABs: Harmful Algae Blooms.