Health advisory issued for harmful algal blooms in Brownlee and Hells Canyon reservoirs

As summer approaches and people start heading to the reservoirs for recreational activities, it is important to be aware of potential risks associated with harmful algal blooms. The Idaho Department of Health and Welfare recently issued a warning about high levels of cyanobacteria in the Brownlee and Hells Canyon reservoirs, which also border Baker and Wallowa counties. These cyanobacteria produce cyanotoxins that can be harmful to people, pets, and livestock.

The health department advisory includes several precautions that people should take while near or in the affected reservoirs. Children should not drink or come into contact with the water, and pets and livestock should also avoid drinking the water or going in it. If pets or livestock do come into contact with the water, it is important to immediately clean their skin, hide, or fur with clean water to prevent illness or death.

Symptoms of cyanotoxin exposure in humans can include rash, hives, red eyes, wheezing, coughing, shortness of breath, stomach pain, diarrhea, vomiting, headache, muscle weakness, dizziness, yellow skin, and dark urine. If you suspect that you have been exposed to cyanotoxins, it is important to seek medical attention promptly. Contact your healthcare provider or call the poison center at 1-800-222-1222. You can also notify algae@deq.idaho.gov.

Cyanobacteria are a natural occurrence in Idaho’s recreational water bodies, and blooms can be triggered by rising temperatures. These blooms can take on different appearances, such as mats, foam, spilled paint, or surface scum with a foul odor. It is important to be cautious when handling objects from the water, as toxins can build up in fish and pose a risk to human health.

To reduce the risk of illness, it is advised not to cook with or drink water from affected reservoirs. Boiling or filtering the water will not remove the toxins. After handling fish or objects from the water, it is important to thoroughly wash hands in clean water. If you plan to eat fish from the water, clean and wash it thoroughly before cooking. Remove all internal organs, fat, and skin to minimize the risk of cyanotoxin exposure.

If you suspect a harmful algal bloom in a water body, you can report it to the Department of Environmental Quality using their online form, by phone at 866-671-5385, or by email at algae@deq.idaho.gov. By staying informed and taking necessary precautions, you can enjoy a safe and healthy summer season near the reservoirs in Baker and Wallowa counties.