Five beaches in King County have high levels of bacteria, according to the local health department. One has toxic algae.

A number of Minnesota cities have reported blue-green algae blooms this summer, causing the temporary closing of some beaches ...

Several popular swimming areas in Putnam County have been temporarily shut down due to harmful algae blooms and elevated ...

Several popular swimming areas in Putnam County have been temporarily shut down due to harmful algae blooms and elevated ...

Knowing this, they hope to better understand, detect and predict when a bloom might occur, or even trace the algae to a ...

A team of researchers is tapping into the ocean’s vast body of free-floating environmental DNA to catch blooms before they ...

Algal blooms can transform water sources into health hazards for livestock, so understanding how to identify, prevent and ...

A new study led by Harvard biologists describes how some sea slugs consume algae and incorporate their photosynthetic ...

The blooms have become an annual problem in the Great Lakes. DNA studies show what’s growing there and why it’s dangerous.

Winnipesaukee saw record cyanobacteria blooms, amid warmer temperatures and an increase in nutrients that feed the bacteria.

Planning to cool off in Lake Erie this weekend? Think twice. Edgewater and Villa Angela beaches have unsafe bacteria levels and harmful algae.