Chunks of algae mats can be harmful or even fatal to humans and pets if ingested.Courtesy of the U.S. Geologic Survey

🚨 Health officials warn of little-known danger to people and pets on the #ColumbiaRiver

#Oregon #Washington #USA 🇺🇸 #USpoli #Health #Dogs #AlgaeBlooms #Lakes #Ponds #BenthicAlgae #Rivers #Water #AlgaeMats #Wildlife #Pets #Science #Environment #Poison

www.oregonlive.com/news/2025/05...