When should I be worried about blue-green algae?
When should I be worried about blue-green algae? These are called benthic blooms. It might be a harmful blue-green algae bloom if the water is blue-green, green, yellow, white, brown, purple, or red, has a paint-like appearance, or if there is scum on the water surface.
How do you know if a lake is good to swim in?
Know the environment. Aside from unseen bacteria that may be lurking in the lapping water, other hazardous factors need to be taken into consideration. Some of these potentially harmful water factors are rip tides, swift water, string underwater currents, and unmarked drop-offs.
How do I know if a lake is safe to swim in?
Know before you go Before you head out, check online to find out if the swim area is currently monitored, is under advisory, or has been closed for health or safety reasons. This is especially important after a heavy rain.