This tool initially focuses on three major South Florida waterbodies, but will be expanded statewide and enhanced with additional features and data next year. Blue-green algae and red tide data is updated daily, while the frequency of background nutrient samples may range from annually to weekly. For more information, visit the Overview page. Markers on this map are associated with location data submitted when samples are taken or reports are made, however actual environmental conditions can change or move more quickly than this site can be updated. Please take caution and review the educational resources on this website to ensure your safety. For more information read our disclaimer information.
To start, select the type of data markers you are interested in:
Blue-green algae may be in these waters. Not all blue-green algae blooms contain toxins. However, adults, children and pets should avoid swimming in or drinking water from these waters while blue-green algae blooms are present.More on Health Notifications
Due to the level of bacteria from fecal contamination in this waterbody, the Florida Department of Health advises against swimming until further notice. High bacteria levels indicate an increased risk of illness in swimmers. Please keep a close on eye on children and pets.More on Bacterial Indicators
Red Tide Algae may be in these waters. Avoid this beach if you have chronic respiratory problems. Keep pets away from water and dead fish. Do not swim near or touch dead fish.More on Health Notifications
Blue-green algae, or cyanobacteria, is a type of algae found naturally in freshwater environments. The algae was reported at this location on the date noted. keep a close on eye on children and pets.More On Blue-Green Algae
Red tide occurs in Florida's coastal waters when a specific type of algae, Karenia brevis, reaches high concentrations – more than 100,000 algal cells per liter. Although Karenia brevis occurs naturally in the Gulf of Mexico, it is not present everywhere all the time. In fact, if the algae that cause red tides are present at all, they generally occur at low to very low concentrations.
Karenia brevis was reported at this site on the date noted, but at concentrations less than 100,000 cells per liter. Respiratory irritation and shellfish harvest closures are possible.
Karenia brevis was reported at this site on the date noted at concentrations exceeding 100,000 cells per liter. Possible environmental and health impacts include discolored water, respiratory irritation, fish kills, and shellfish closures.More on Red Tide