Suspended sediment-bound toxic chemical fluxes from the Snohomish and/or Stillaguamish River to Puget Sound.
This Near Term Action has an Update in progress.
Near Term Action Overview
Basics
Suspended sediment-bound toxic chemical fluxes from the Snohomish and/or Stillaguamish River to Puget Sound.
Planning/Design
Toxic chemicals, such as PAHs, sorb to sediment rather than dissolve in water. Therefore, traditional water-quality (WQ) monitoring analysis of water samples likely underestimates total chemical concentrations to which Chinook salmon and other aquatic species are exposed. The USGS developed a new field centrifugation method to quantify suspended sediment-bound chemical concentrations and fluxes. We will follow the model of work established at the Duwamish River, including continuous river flow and turbidity, discrete measurements of WQ, suspended sediment concentration and particle-size distribution, and centrifugation for suspende...
2019
2020
2022
9/19/2019
Near Term Action Attributes
Additional Basic Information
2018 NTA ID
2018-0976
Implementation Status
Activity Progress
Off-Track
Activity Progress Barrier
Inadequate resources: Funding not fully secured
Miscellaneous
Total Proposed NTA Cost
$600,000.00