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Nutrient Pollution

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Graphics: Clean Water or Green Water?

Simple every day activities such as proper fertilizer usage, picking up pet waste, and switching to phosphate-free detergents can help reduce nutrient pollution that may lead to harmful algal blooms. Photo of two children swimming.

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Avoid contact with water if you suspect a harmful algal bloom. When in doubt, stay out. Photo of a girl holding her nose.

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Some algae produce toxins that are harmful to people and animals. Photo of two people standing by a harmful algal bloom.

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If you see an algae bloom in your area, notify your local health department for testing. Photos of four different algae blooms.

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Nutrient Pollution

Nutrient Pollution
The Problem
Sources and Solutions
The Effects
Where This Occurs
What You Can Do
Policy and Data

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Last updated on January 19, 2017