RBC | Signs warning residents about an algae bloom that were posted at Lake Avery in August caused some alarm regarding the potential for toxic blue-green algae that can harm humans and animals. Laboratory testing conducted by Colorado Parks and Wildlife indicates the blue-green algae present at Lake Avery this summer is not of the toxic variety.
“When the bloom was discovered we put up the yellow caution signs as a warning and began testing for toxins. All test results have been negative for toxins. We will leave the yellow signs up and continue testing while the blue-green algae is present in the lake,” said Rachael Gonzales, Northwest Region public information officer for Colorado Parks and Wildlife via email Monday, Aug. 28. CPW will continue to monitor, Gonzales said, even as the algae begins to dissipate from the lake.
Blue-green algae occurs naturally and is common in Colorado waters. It poses a health risk when the organisms multiply rapidly and cause a concentration, or “bloom” of cyanobacteria.
According to information from CPW, “Blooms tend to occur when the ecosystem gets out of balance and the cyanobacteria are able to outcompete other phytoplankton. Excess nutrients, high temperatures, and standing or slow-moving water provide an optimal environment for cyanobacteria to reproduce. The peak season for toxic algae is during the hot summer months of June to September.”
By NIKI TURNER – editor@editorht1885.com
