Following Friday’s toxic algae advisory, health officials are asking people and pets to avoid the area of Tonguewax Lake in Pierce County, where visible algae blooms are occurring.
The Tacoma-Pierce County Health Department (TPCHD) issued a warning after algae was discovered in the lake during sampling on October 15th.
Signs have been placed at the lake warning the public of potential health risks. The agency advises people to avoid swimming, wading, water skiing, and fishing in areas where algae blooms occur.
Officials also warned that wind conditions could move the algae to other parts of the lake.
“We plan to test the lake again next week,” TPCHD said in its advisory, adding that the latest information on water quality can be found on the department’s website.
Toxic algae, also known as cyanobacteria, occur naturally in lakes but can produce harmful toxins that pose a danger to humans and animals.
Algae can appear as a scum layer, stripes, clumps, or dispersed in the water, resembling green pea soup. Depending on the wind and weather conditions, the color changes from green to brown, red, and even bluish.
Health symptoms associated with exposure to toxic algae may include muscle weakness, vomiting, diarrhea, and nausea.
In severe cases, it can cause dermatitis or rash. Pets are especially at risk because their small size makes them more likely to ingest algae-contaminated water while grooming.
If exposed, health officials recommend washing immediately and seeking medical attention if symptoms develop.
For pets, owners should avoid licking their fur and seek veterinary care at the first sign of illness.
Residents are advised to avoid consuming fish caught in areas of the lake affected by algae, minimize the use of fertilizers, and properly dispose of pet waste to reduce nutrients that promote algae growth. It is recommended that the guidelines be followed.
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