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Tue Sep 14, 2021, 09:16 PM

Experts seek ways to avoid 'dead zones' in Puget Sound caused by excess nutrients from humans

SEATTLE - The Washington State Department of Ecology (WSDOE) says that excess nutrients from humans are contributing to low oxygen levels in Puget Sound.

If oxygen levels drop low enough, it could lead to what’s called “dead zones,” or areas where aquatic life cannot be sustained because of the lack of oxygen.

The current levels of dissolved oxygen in Puget Sound do not meet water quality standards and is “bad news for aquatic life,” according to WSDOE.

Many aquatic organisms, like humans, need oxygen. Dissolved oxygen standards are set at levels that protect aquatic communities.


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