What does cyanobacteria look like?

A bright green film that looks like "paint" in the water. May contain small white specs in the water column. Looks like an oil slick, green specks, pea green layer on the surface. View images (PDF) or visit Identifying cyanobacterial blooms and scums for more examples.

  • Floating algae
  • Has a musty odor
  • It has a fuzzy appearance and is often green in color with blue highlights.

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1. How do I know if a pond has been identified as having an active cyanobacteria bloom?
2. How do I report a cyanobacteria bloom?
3. What steps does the Town take when a resident reports a bloom?
4. What water bodies are tested in Plymouth?
5. What are the health concerns associated with cyanobacteria?
6. What does cyanobacteria look like?
7. What are the causes of cyanobacteria?
8. Where can I learn more about Cyanobacteria?