A Blue-Green Bloom of Cyanobacteria Leads to an Ocean Beach

question 29

Multiple Choice

A blue-green bloom of cyanobacteria leads to an ocean beach closure.What is the primary concern?

• A) Cyanobacteria indicate the presence of fecal matter in the water, which could lead to intestinal illnesses.
• B) Cyanobacteria are frequently pathogenic and could infect swimming humans.
• C) Liver-damaging toxins produced by cyanobacteria could affect humans who come in contact with the water.
• D) Cyanobacteria consume oxygen in the water, and fish begin accumulating toxins as oxygen levels drop.

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