The Department of Natural Resources has issued an advisory about blue-green algae found in eight lakes across the state:
Blue-green algae, also known as cyanobacteria, is common across the state but can be toxic in high levels.
Ginger Murphy is the Deputy Director for Indiana State Parks.
"Any kind of plant that grows in the water is encouraged to grow by nutrients in the water," Murphy says. "When there's an influx of the nutrients that algae needs to grow into the water, the number of cells are going to increase and it's going to grow."
Blue-green algae is often caused because of nutrient runoff. Excess agricultural fertilizer and runoff from pastures, feedlots, and golf courses are some common causes which may lead to the creation of blue-green algae.
According to the Indiana Department of Environmental Management, exposure to blue-green algae can lead to rashes, skin and eye irritation, nausea, stomach aches and tingling in finger and toes.
An advisory is the second lowest alert level the DNR can issue. During an advisory swimming and boating are still allowed, however people are told to avoid contact with the algae.
After swimming in a lake where an advisory is issued, the DNR says people should take baths or showers with warm soapy water. Additionally, the lake water can't be used for bathing or cooking and pet owners are told to keep their pets completely away from the affected lake water.