Preventing and avoiding blue-green algae blooms

Blue-green algae, Cyanobacteria for those in the know, is common in Minnesota. Most of the time it is harmless. However, nutrient pollution, like phosphorus and nitrogen, can increase the algae bloom, which usually begins in July.

When blooming, the algae often has a green look and it can make humans, dogs and other animals sick. It can also cause
skin irritation.

If exposed to the algae, dogs may experience vomiting, diarrhea, rash, difficulty breathing, weakness, liver failure, and seizures. Contact your veterinarian immediately if you think your dog has been exposed.

How you can help reduce algae blooms

Algae blooms thrive on nutrients, like phosphorus. This comes from fertilizer and lawn waste, like grass clippings. Reducing fertilizer use and keeping yard waste off pavement can help reduce phosphorus in waterways, and these dangerous algae blooms.

For more information, visit blm.mn/water-quality.