People may breathe toxins from Florida algae blooms without touching water
Scientists have identified airborne cyanobacterial toxins in Southwest Florida, suggesting that people can be exposed to harmful algae blooms through inhalation rather than just water contact. This follows research linking similar neurotoxins to Alzheimer's-like symptoms in marine life.
Why it matters
This discovery highlights a potential public health risk that extends beyond direct water contact, necessitating new environmental monitoring and safety protocols.
Cyanobacteria, a blue-green algae is known to have played an ancient role in establishing Earth's atmosphere. They love warm temperatures, lots of sunlight and slow-moving water. Florida's year-round climate provides all of this and more. When rivers, lakes and estuaries are loaded with excess nitrogen and phosphorus, often due to agricultural runoff and improperly treated sewage, cyanobacterial populations can explode, releasing toxins into the environment that can damage human health.In 2025, nonprofit Brain Chemistry Labs in Jackson, Wyoming partnered with neurologists and oceanographers at the Miller School of Medicine in Miami, marine biologists at Hubbs-SeaWorld Research Institute and the Blue World Research Institute to announce that the beached dolphins in Florida's Indian River Lagoon showed signs of Alzheimer's disease.
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