microcystin

Steve Carmody / Michigan Radio

TOLEDO, Ohio (AP) - Toledo officials are stressing that the city's water is safe to drink as they continue to monitor for the toxin produced by Lake Erie cyanobacteria blooms  that shut down services two weeks ago to about 400,000 people.

Officials say tests on untreated water coming into a city plant are showing a "strong presence" of the toxin microcystin, but the treated water is safe.