Toxin advisory issued for Keyhole

A toxin advisory has been issued for Keyhole Reservoir due to harmful levels of cyanotoxins present in the water.

A harmful cyanobacterial bloom (HCB) is described by the Wyoming Department of Environmental Quality (DEQ) as an abundance of a substance that is always present in surface waters at low levels and play an important role in the aquatic ecosystem, but can bloom into a harmful overabundance.

Cyanobacteria is able to produce toxins and other irritants that can have harmful health effects to people and animals, including pets and livestock.

Exposure can take place through skin contact,...