In the last week, Karenia brevis was detected in varying concentrations across Northwest Florida. Karenia brevis, which causes red tide, contains toxins that can be harmful to humans.
It was found at background and very low concentrations in and offshore of Escambia County (in two samples), background to low concentrations in Santa Rosa County (in three samples), background to medium concentrations in Okaloosa County (in 12 samples), very low to medium concentrations in Bay County (in 16 samples).