Hood Canal

Water Quality
12:03 pm
Mon January 24, 2011

Marine “dead zones” detailed in interactive online map

This screen shot is from a new interactive online map that shows some of the nearly two dozen marine areas in Washington that experience low oxygen from nutrient pollution.
World Resources Institute

Growing populations and increasing pollution are contributing to more and more “dead zones” in bays and oceans around the world.

Now there’s an interactive online map pinpointing more than 760 spots across the globe—including 22 in Washington – that either are dead zones or are in danger of becoming one.

What’s a “dead zone?”

It happens when excess nutrients in the water help trigger an algae bloom. Mindy Selman explains that when all the algae die, they sink to the bottom.

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