what's the risk of swimmimg in blue green algae?

Florida Sportsman Watermen Documentaries - Blue-Green Algae, Toxic Water. A Major Health Issue.

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City working to combat toxic blue-green algae in Austin's Lady Bird Lake | KVUE

Toxic blue-green algae uncommon in Tennessee

Illegal signs posted in Stuart warning swimmers of toxic blue-green algae

Algae considered too dangerous for swimming discovered in Lake Okeechobee

Toxic blue-green algae advisory

Toxic levels of blue green algae plague river swim park plans

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Toxic algae endangers Okla. swimmers

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Blue-green algae means Big Soda Lake off limits to swimmers

N.C. woman warns about blue-green algae after dogs die hours after exposure

Three dogs die after swimming in pond with blue-green algae

How To Spot Harmful Blue-Green Algae Before Jumping In For a Swim