The City of Austin has detected what it calls “concerning levels” of a toxin called cylindrospermopsin in Barton Creek at Sculpture Falls, near MoPac and Loop 360. The samples were taken on September 9 after a report of a human illness, and results were received on September 22. The City of Austin is posting signs at access points to the Barton Creek Greenbelt near Sculpture Falls.
While not the first time Austin has seen toxic algae in its waterways, officials say this situation involves a different toxin with different health effects. The toxins were found in water samples rather than in the algae, which increases the risk of human exposure from recreational use. In addition, the toxin was found at a popular swimming hole in a creek environment, rather than in a lake or reservoir.
The city is advising people and pets to steer clear of warm, stagnant water, especially if it is discolored of foul-smelling.
Cylindrospermopsin may cause liver and kidney damage. According to the EPA, acute human and animal health effects of exposure to this toxin include:
- Fever
- Headache
- Vomiting
- Bloody diarrhea
The public is being asked to call 3-1-1 to report possible illness in people or pets from harmful algae.
