DUVAL COUNTY, Fla. — The Florida Department of Health in Duval County issued a health alert Monday after "harmful" blue-green algae toxins were found in the St. Johns River.
The alert was issued after a sample was taken from the river on Sept. 23., before Hurricane Helene.
Health officials are warning residents to take precautions in and around the St. Johns River near Mandarin Point.
Residents are urged not to drink, swim, wade, use personal watercrafts or come into contact with water where a visible bloom is located. Pets and livestock should be kept away from water, as well.
If someone comes into contact with algae, they should wash their skin and clothing with soap and water.
Do not cook or clean dishes with contaminated water; boiling water will not eliminate any toxins present.
Blue-green algae is a common bacteria found in Florida's freshwater environments. Environmental factors like warm water temperatures and excessive sunlight can contribute to algae blooms.
For additional information on water quality status, visit protectingfloridatogether.gov/.