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An image of brackish water mixing in the Salish Sea as shown by the Salish Sea Model. Image courtesy of the Salish Sea Modeling Center.

Upcoming workshops on tools to evaluate water quality and biological integrity 

New event: More than 130 researchers, scientists, modelers, and other experts attended our first workshop in July on The Science of Puget Sound Water Quality. The discussion continues with two interrelated workshops focusing on scientific tools for evaluating marine conditions and species health. Join us:  September 29th from 8 – 10 AM PT for Tools to …

New sewage-treatment permit would be a step to curbing nitrogen in Puget Sound

In an effort to stem the flow of excess nitrogen into Puget Sound, Washington Department of Ecology has proposed a new type of permit for some 60 sewage-treatment plants operating throughout the region. The flexible permit, called the Puget Sound Nutrient General Permit, aims to hold nitrogen releases close to or below their current levels …

Core sample from Hood Canal showing a cotton-like mat of Beggiatoa bacteria extending above the seafloor. Oct 2006. Photo: Matt Lonsdale

Does Puget Sound need a diet?

As the region’s population grows, scientists say we can expect to see increasing amounts of nitrogen and other elements flowing into Puget Sound. Known as “nutrients” these elements are naturally occurring and even necessary for life, but officials worry that nutrients from wastewater and other human sources are tipping the balance. That could mean big …

An algae bloom covers a huge section of Lake Erie. Photo courtesy of NASA.

Puget Sound’s growing nutrient problem

By Jeff Rice, Puget Sound Institute First there was “The Blob” that fed last year’s massive algae bloom in the Pacific Ocean. Now there is another monster getting our attention. You might call it “The slime that ate Lake Erie.” The incredible images of Lake Erie’s expanding blanket of green show the familiar effect of …