David Kennedy, an associate professor of medicine at the University of Toledo, replaces an air filter inside of a monitoring station near Lake Erie, Thursday, Sept. 5, 2024, in Oregon, Ohio. (AP Photo/Joshua A. Bickel)

A child wades in Lake Erie during an algal bloom, Monday, Aug. 26, 2024, at Maumee Bay State Park in Oregon, Ohio. (AP Photo/Joshua A. Bickel)

A family fishes in Lake Erie during an algal bloom, Wednesday, Sept. 4, 2024, in Toledo, Ohio. (AP Photo/Joshua A. Bickel)

Dan Desmond, of Toledo, holds his grandnephew while walking on the beach near Lake Erie, Thursday, Sept. 5, 2024, at Maumee Bay State Park in Oregon, Ohio. (AP Photo/Joshua A. Bickel)

Malissa Vallestero, left, helps Jaylon Chism, center, untangle a fishing line, Wednesday, Sept. 4, 2024, in Toledo, Ohio. (AP Photo/Joshua A. Bickel)

Bivek Timalsina prepares lung tissue samples that will be used in research on aerosolized microcystin, algae toxins when they become airborne, Thursday, Sept. 5, 2024, at the University of Toledo in Toledo, Ohio. (AP Photo/Joshua A. Bickel)

Bivek Timalsina prepares lung tissue samples that will be used in research on aerosolized microcystin, algae toxins when they become airborne, Thursday, Sept. 5, 2024, at the University of Toledo in Toledo, Ohio. (AP Photo/Joshua A. Bickel)

Waves crash against rocks along the Lake Erie shore, Wednesday, Sept. 4, 2024, at Maumee Bay State Park in Oregon, Ohio. (AP Photo/Joshua A. Bickel)

A bottle of water from Lake Erie, collected during an algal bloom, sits in a lab, Thursday, Sept. 5, 2024, at the University of Toledo in Toledo, Ohio. (AP Photo/Joshua A. Bickel)

People wade in Lake Erie during an algal bloom, Monday, Aug. 26, 2024, at Maumee Bay State Park in Oregon, Ohio. (AP Photo/Joshua A. Bickel)