date:Sep 01, 2017
King County Public Health in Seattle, Washington, has closed most of Vashon Island beaches for shellfish harvesting after Paralytic Shellfish Poison (PSP) has been detected at unsafe levels. Quartermaster Harbor is still open for harvest. The commercial harvest is not affected.
PSP is a neurotoxin produced by a naturally occurring marine organism. The toxin is not destroyed by cooking or freezing. PSP poisoning can be life threatening. You cannot determine if the toxin is present by looking at