Introduction
In
June, 2002, the U.S. Environmental Protection Agency in cooperation
with many universities and other agencies in the United States and
Canada, began an intensive special study to determine the cause of
the oxygen depletion in Central Lake Erie. This effort has received
Congressional interest and lots of
media coverage. In this photo, Dr. Glenn Warren (right) of
EPA's Great Lakes National Program Office explains water sampling
procedures to Sen. George Voinovich (center) of Ohio aboard EPA's
Research Vessel Lake Guardian.
Video: Lake Erie
Oxygen Depletion
USEPA Environmental Scientist, Paul Bertram, Ph.D. explains
oxygen depletion in Lake Erie and the actions that USEPA is
taking understand the problem.
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Animation: How Oxygen
Depletion Develops
![](DZAnimate.gif)
This animation gives a simplified explanation of how oxygen depletion
develops.
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