Earlier today, a warning was issued for Lake Castaic in Los Angeles County due to a dangerous algae bloom. The California Department of Water Resources (DWR) has urged people to avoid swimming or engaging in any water-related recreational activities at the lake, as well as eating fish or shellfish from it. Boating is still allowed, but anyone looking to enjoy a day in the water is in for a disappointment as the entire lake, except for the Castaic Lagoon, has been put on alert for the potential adverse health effects of toxic blue-green algae, or cyanobacteria, as per California Department of Water Resources.
Lab tests conducted earlier this week have detected an increased level of toxins in the water due to the presence of blue-green algae, sparking concern among state water managers, as reported by KTLA. Cyanobacteria is a natural part of the lake's ecosystem; however, elevated levels of it can be harmful to humans and animals, causing rashes, eye irritation, vomiting, diarrhea, and cold- or flu-like symptoms. Additionally, pets are at an even higher risk as they tend to drink the water and lick their fur afterward.
Warm water temperatures, stagnation, and storm runoff carrying nutrients like fertilizer into the water are some of the main factors contributing to the increase in cyanobacteria levels in the lake.
It is important for swimmers, pet owners, and livestock owners to be aware of the current situation and stay out of the water. Contact with the algal scum on the water or shore should also be avoided, as it may lead to potential health risks.
