photo from IDPH

The public is urged to watch out for blue-green algae in Illinois lakes and rivers.Blue-green algae can produce toxins that are dangerous to people and pets.

It becomes more prevalent when the temperatures rise and can look like spilled green or blue-green paint, surface scum or greenish globs suspended in the water says State EPA Biologist Teri Holland. 

Those exposed could suffer a rash, hives, diarrhea and vomiting.

If you do come in contact with blue-green algae, Holland recommends rinsing off with fresh, clean water as soon as possible.