DuPage County Warns Pet Owners of Toxic Algae

DuPage County officials have issued a warning to pet owners concerning a confirmed algae bloom in the East Branch Forest Preserve's off-leash dog area. This natural phenomenon can become hazardous in warm weather, leading to the production of toxins detrimental to pets, children, and individuals with compromised immune systems.

The harmful blooms can manifest as blue, brown, or green discoloration on the water's surface, resembling spilled paint. Officials emphasize that visual inspection cannot determine toxicity. Therefore, the public is urged to avoid contact with the water and algae, keep pets at a distance, and thoroughly clean any affected skin or fur.

Warning signs have been posted around the affected area, and Forest Preserve staff are continuously monitoring the water conditions. The duration of the bloom is uncertain and can vary based on environmental factors. Exposure to blue-green algae and its toxins can result in symptoms such as skin irritation, headaches, vomiting, breathing difficulties, diarrhea, and neurological issues.