Blue-green algae blooms have been found in Clear Lake. Lake County health officials made the announcement last Friday but are still determining whether there are toxins in the lake. Blue-green algae blooms can produce cyanotoxins which can cause severe illness, including skin irritation, vomiting, diarrhea, headaches, fever, and muscle and joint pain. People going to Clear Lake are advised to avoid ingesting untreated lake water or direct contact with water “that appears discolored, has scum layers, or emits a foul odor.” If you are exposed, immediately rinse off with clean water. Pets and livestock should be kept away.