July_12,_2013_-_Sassafras_River,_VA_Algal_Bloom_(9321804011).jpg
Summary
Description July 12, 2013 - Sassafras River, VA Algal Bloom (9321804011).jpg |
Nitrogen and phosphorus support the growth of algae and aquatic plants, which provide food and habitat for fish, shellfish and smaller organisms that live in water. When too much nitrogen and phosphorus enter the environment - usually from a wide range of human activities - the air and water can become polluted. Excess nitrogen and phosphorus cause an overgrowth of algae in a short period of time and cause what is generally known as an algal bloom. Too much nitrogen and phosphorus in the water causes algae to grow faster than ecosystems can handle. Significant increases in algae harm water quality, food resources and habitats, and decrease the oxygen that fish and other aquatic life need to survive. For more information, visit www2.epa.gov/nutrientpollution Photo by Eric Vance, U.S. EPA. |
Date | |
Source | July 12, 2013 - Sassafras River, VA Algal Bloom |
Author | USEPA Environmental-Protection-Agency |
Licensing
Public domain Public domain false false |
This image (or other media) is a work of an
Environmental Protection Agency
employee, taken or made as part of that person's official duties. As
works
of the
U.S. federal government
, all EPA images are in the
public domain
.
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This image was originally posted to Flickr by usepagov at https://flickr.com/photos/24400159@N05/9321804011 . It was reviewed on 1 October 2016 by FlickreviewR and was confirmed to be licensed under the terms of the United States Government Work. |
1 October 2016