U.S. Geological Survey - Environmental Health
A growing number of human gastrointestinal, respiratory, dermatologic, and neurologic effects, as well as dog and livestock illnesses and deaths, in the United States have been linked to exposures to algal blooms in recreational lakes and stock ponds. However, the connection between these illnesses and cyanotoxins known to be produced by algal blooms is largely anecdotal.
Our specialized teams of hydrologists, chemists, biologists, and geologists working in laboratories and at field sites have shown that cyanotoxins are present in rivers, lakes, and wetlands across the United States.
Questions We're Working On:
USGS scientists are working to determine if cyanotoxins associated with algal blooms are causing a significant health hazard to humans, pets, livestock, or wildlife.