“HABs blue-green algae can appear green, white, yellow, red, brown, purple, black or even clear. Non-toxic blooms can look identical to toxic ones, and blooms can develop quickly.

TOLEDO, OH — The annual harmful algae bloom in Lake Erie should be milder this summer than last, say forecasters who highlighted decreases in a type of key nutrient driving the icky phenomenon ...

Harmful Algae Blooms, Bacteria Close These Putnam County Beaches Several popular swimming areas in Putnam County have been temporarily shut down due to harmful algae blooms and elevated bacterial ...

Gregory J. Dick, University of Michigan Federal scientists released their annual forecast for Lake Erie’s harmful algal blooms on June 26, 2025, and they expect a mild to moderate season. However, ...

Water quality scientists predict the harmful algae bloom on western Lake Erie this year will be relatively mild and less severe than last year. The bloom will be between mild and moderate levels ...

A new forecasting tool developed by University of Florida researchers is set to tackle one of Florida's most toxic challenges—algae blooms.

The swimming area at Swartswood State Park in Sussex County was closed Thursday because of a harmful algae bloom, state officials said.