Identifying chemical suspects in stormwater

Adult coho salmon returning to Seattle-area urban streams are dying prior to spawning, as indicated by female carcasses with nearly 100% egg retention. The above example is an adult female that returned from the ocean to spawn in Longfellow Creek (West Seattle) in the fall of 2012. Photo credit: Jenifer McIntyre.

Adult coho salmon returning to Seattle-area urban streams are dying prior to spawning, as indicated by female carcasses with nearly 100% egg retention. The above example is an adult female that returned from the ocean to spawn in Longfellow Creek (West Seattle) in the fall of 2012. Photo credit: Jenifer McIntyre.

Scientists know this much about stormwater: It can be extremely toxic. It can kill exposed fish such as coho salmon within hours. But figuring out exactly what is in stormwater has been a complex puzzle that has so far confounded scientists. Many of the chemical compounds in it remain unidentified.

Is there such a thing as typical stormwater, or is it so variable that patterns can’t be detected? That has been the subject of research by Center for Urban Waters research scientist and PSI collaborator Ed Kolodziej, who will be presenting some of his findings at the Northwest Fishery Sciences Center on May 18th. New analytical techniques using time of flight mass spectrometry are making it easier to identify and localize sources of contaminants.

When and where:

Thursday, May 18, 2017 at 11:00 AM in the Northwest Fisheries Science Center Auditorium: 2725 Montlake Blvd. E., Seattle WA 98112.

Visit the Northwest Fisheries Science Center website for more information. 

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Healthy stream, healthy bugs

Benthic invertebrates range in size from those easily seen with the naked eye to those that cannot be spotted without the use of a microscope. Photo: Christopher Dunagan

Benthic invertebrates range in size from those easily seen with the naked eye to those that cannot be spotted without the use of a microscope. Photo: Christopher Dunagan

Many groups have been formed around the goal of saving salmon, but few people talk about a concerted effort to save microscopic creatures. Whether or not a pro-bug movement catches on, future strategies to save salmon are likely to incorporate ideas for restoring streambound creatures known as benthic invertebrates. Read our latest story in Salish Sea Currents. 

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CUW scientists among first to receive Amazon Catalyst grants

geekwire_story_screenshotCenter for Urban Waters engineers are among the first to receive a University of Washington Amazon Catalyst Grant. Dr. Andy James (also a member of the Puget Sound Institute) and Alex Gipe received $50,000 from Amazon to improve a process to remove phosphorous from stormwater pollution. Phosphorous can cause increased algal growth in lakes and ponds which in turn can poison fish and other species.

The Center for Urban Waters is the Puget Sound Institute parent organization and is affiliated with the University of Washington Tacoma.

The Amazon Catalyst program began in 2015 and 12 projects across the University of Washington have been selected for grants so far. The program supports innovation at universities, and encourages “people in all fields to think big, invent solutions to real-world problems, and make a positive impact on the world,” according to the program’s website.

Read more about the grant in GeekwireAmazon ‘Catalyst’ program reveals the first university projects it’s backing.

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Puget Sound Day on the Hill 2016

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U.S. Rep. Derek Kilmer introduced new stormwater legislation today.

Local agencies and stakeholders—including PSI— were in D.C. today to advocate for Puget Sound. Follow some of the action on social media, including Twitter posts at #saveoursound and #saveamericassound. Among the day’s highlights was a new stormwater bill introduced by Representative Derek Kilmer, who announced the legislation on Facebook.

Read the full text of H.R.4648 – Green Stormwater Infrastructure Investment Act.

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