Slimy Summer Swimming: Harmful Algal Blooms in Lakes, Rivers and Streams
Slimy Summer Swimming: Harmful Algal Blooms in Lakes, Rivers and StreamsYou may notice a green, red or brown film on your favorite boating or swimming area in the summer. This coloring could mean that the water is affected by harmful algal blooms. USGS scientists Dr. Barry Rosen, Dr. Jennifer Graham and Dr.