Avoid Harmful Algae and Cyanobacteria, Harmful Algal Blooms

Harmful algal blooms can produce toxins (poisons) that can make people and animals sick and affect the environment. Learn more about them to keep you and your pets safe.

Harmful Algal Blooms U.S. Geological Survey

Preventing Algal Blooms with a “Pinch of Sugar”

Harmful algae blooms in freshwater bodies

Algal Blooms & Cyanobacteria

Algal blooms in West Michigan lake prompt health warning to avoid 'pea soup' water

Toxic Algal Blooms Are Worsening with Climate Change - Eos

Harmful Algal Blooms (HABs) - Pike County Conservation District

Harmful Algae Blooms, Environment, PSA

Summertime, and toxic algae is blooming: Here's what you need to know