05/28/2026
Harmful algae blooms can be extremely dangerous for pets—especially dogs who love to swim, splash, or drink from lakes, ponds, rivers, and streams.
If the water looks suspicious, stay out. Thick green foam, pea-green or blue-green water, mats on the surface, or bright green clumps can all be warning signs.
Exposure can cause serious illness very quickly, so it’s safest to keep pets away from questionable water and offer fresh drinking water instead.
When in doubt, stay out!
Graphic courtesy of Oregon Veterinary Medical Association — thank you for sharing this important reminder.