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PSI monthly roundup: July 2022

VIEW THE FULLY FORMATTED NEWSLETTER in your browser Low-oxygen problems to be scrutinized in talks about research, modeling efforts   For decades, researchers have been advancing their understanding of what causes the harmful and sometimes deadly low-oxygen problems afflicting some areas of Puget Sound. A series of 10 workshops on the subject will begin Tuesday, July …

Recent papers from our group: 6PPD-Q updates and the ongoing hunt for contaminants

New papers this month 6PPD-Quinone: Revised Toxicity Assessment and Quantification with a Commercial Standard A 2022 article in the journal Environmental Science & Technology Letters revises previous findings on the environmental concentration and toxicity of 6PPD-Quinone, a novel compound lethal to coho salmon. The paper reports that 6PPD-Quinone, a chemical resulting from tire wear particles, …

Stacked tires. Photo: Kool Cats Photography. https://flic.kr/p/ChFgxf (CC BY-NC 2.0)

Conference highlights latest findings on toxic chemical in tires

The International Conference on Emerging Contaminants (EMCON), hosted virtually this month by the University of Washington, focused on newly identified threats from chemicals and microplastics in the environment. The conference provided an opportunity to hear the latest research on the discovery of a tire-related compound deadly to Puget Sound’s coho salmon. The cause of what scientists …

Issaquah Creek. Photo courtesy of Nicholas Georgiadis.

Are summer low flows increasing in Puget Sound streams?

Update: A pdf of slides from the presentation is now available. Adequate stream flows are critical to Puget Sound’s endangered salmon and are one of the state’s ‘Vital Sign’ indicators of ecosystem health. Earlier data suggests that summer stream flows have been on the decline, but new analysis shows that gauging these flows may be …

Stormwater picks up contaminants from vehicles. Photo: Daniel Parks (CC BY-NC 2.0) https://www.flickr.com/photos/parksdh/7014755513

Could tire discovery go beyond impacts on coho?

Scientists have suspected for several years that chemicals from tire wear particles are to blame for the deaths of thousands of coho salmon that have returned to spawn in Puget Sound’s urban streams. Sometimes referred to as “pre-spawn mortality” or “urban runoff mortality syndrome,” these deaths typically occur in streams near roads, and scientists have …

An illustration of the coronavirus. Image courtesy of the Centers for Disease Control and Prevention.

The coronavirus has been found in Tacoma sewage. It could help scientists track the pandemic

Researchers at a non-profit biotech startup in Tacoma have found traces of the novel coronavirus in the city’s sewage, opening up new possibilities for tracking and monitoring the COVID-19 pandemic. The testing is being led by Center for Urban Waters collaborator David Hirschberg who directs the RAIN biotech incubator in Tacoma, along with RAIN’s principal …

Time to spare? Why not conduct some real online research to advance science

If you are looking for something constructive to do in this stay-at-home period of our lives, I might suggest joining a team of scientists conducting real online research. Zooniverse, a clearinghouse of about 100 active crowd-sourced science projects, has added educational materials for all age groups. Students learning at home can assist professional researchers as …

A school of herring.Jacob Bøtter/Flickr

Young herring ‘go with the older fish’ a key finding in Ocean Modeling Forum’s efforts

Puget Sound Institute lead ecosystem ecologist Tessa Francis was quoted in a recent article in UW News. From UWT News Service: “Young herring ‘go with the older fish’ a key finding in Ocean Modeling Forum’s efforts,” by Michelle Ma, UW News, May 29, 2019, http://www.washington.edu/news/2019/05/29/young-herring-go-with-the-older-fish-a-key-finding-in-ocean-modeling-forums-efforts/. Tessa Francis is both the lead ecosystem ecologist at the …