Green Lake closed to swimming, water contact due to toxic algae

SEATTLE -- Public health officials closed Green Lake to swimming and water contact for people and dogs because of high level of toxins in the algae, the city announced Friday.

People and pets should not swim, wade or play in the lake, Seattle Parks and Recreation said, adding that dog owners should be especially cautious not to allow animals to go in or drink from the lake.

If there is water contact for a pet, the department said, it is important to rinse well to remove all algae.

Symptoms of illness from contacting the toxins in water are eye, nose, and mouth irritation and skin rash. If accidental contact occurs, use clean water to promptly rinse skin, it said.

Swallowing the toxins may cause abdominal pain, diarrhea vomiting and, in severe cases, liver damage.  If symptoms occur after swallowing lake water, park users should consult a health care professional or veterinarian immediately, the department said.

The lake remains open to fishing (though fish should be thoroughly cleaned) and boating in stable boats, it said. Avoid areas of scum when boating.

For more information on cyanobacteria, please visit Washington Department of Health toxic algae website.