Blog: blue-green algae

a dog stands in a moving river

When swimming can be dangerous: Blue-Green Algae

Cyanobacteria (also known as blue-green algae) can bloom in lakes, streams and ponds, most often during periods of hot weather in mid- to late-summer months but can be present in lower concentrations throughout the year. The algae take on the appearance of blue or green paint on the surface of...