RICHLAND, Wash. – The Benton-Franklin Health District (BFHD) has issued an urgent warning about extremely high levels of cyanotoxins found in algae along the Columbia River at Howard Amon Park.
Cyanotoxins are harmful substances produced by cyanobacteria, also known as blue-green algae.
They pose a significant health risk to both humans and animals such as liver, nerve, skin and gastrointestinal issues.
According to a release by BFHD, algae mats along the park shoreline contain anatoxin-a levels 20 times higher than the surrounding water. These toxic mats pose a risk to both animals and humans.
Warning signs are posted at Howard Amon Park. Residents are advised to monitor pets and children closely when near the river.
Since 2021, nine dogs have been poisoned by anatoxin-a, leading to six fatalities, BFHD said.
No human illnesses have been reported, but symptoms can include numbness, tingling, and dizziness.
Immediate medical attention is recommended for any symptoms, and Poison Control can be reached at 800-222-1222.
Residents are urged to report any suspected animal cyanotoxin poisoning to BFHD at 509-460-4205. For more information, visit the BFHD website on harmful algae blooms.
