Toxic blooms on Lake Erie remain a problem, with the issue persisting for 10 years after a "do not drink" order was issued in Toledo. The presence of harmful toxins and blue-green algae in the lake has been detected, with some reports indicating the issue is not limited to Lake Erie, as similar problems are being observed in other lakes, including Lake Superior. The persistence of toxic algae blooms in Lake Erie suggests that the problem has not been fully resolved despite some measures being taken.