Red Tide Information

In Florida, red tide is caused by a naturally occurring microscopic alga called Karenia brevis.

Red tide algal blooms can change rapidly, staying in one place for months or just a few days or weeks.

Symptoms from breathing red tide usually include coughing, sneezing and watery eyes. For most people, symptoms are temporary and typically go away when the person leaves the area.

People with chronic respiratory problems, like asthma, should avoid areas with active red tides. People with symptoms that persist should seek medical attention.

Residents sensitive to red tide and living in beach areas affected by blooms are advised to close windows and run the air conditioner (making sure that the AC filter is maintained according to the manufacturer’s specifications).