Grand Lake St. Marys in Ohio has toxic blue-green algae return
2012-05-12 16:25:00 -0700
Where: Howard Dr Celina, OH 45822, United States
Grand Lake St. Marys in Ohio appears to have toxic blue-green algae growth earlier this year than last, possibly because of unseasonably warm weather.
The algae blooms, which produce a nerve toxin that can sicken humans and dogs, have led to previous closures of Grand Lake St. Marys and swimming advisories.
The latest test in April detected a concentration of the algae-produced liver toxin that was seven times higher than the level the state uses to advise older visitors, young children and people with weakened immune systems not to wade or swim. This level would also be unsafe for dogs to wade and swim in the waters as well.
Warning signs will not yet go up in the state park until the start of the swimming season on Memorial Day weekend. Nevertheless, dog owners should exercise caution in allowing their pets to swim in the water.
Authorities plan to treat the lake as they did last year to eliminate the algae from growing.
Read more about Blue Green Algae (Cyanobacteria) and How it Can Harm Your Dog.