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Quality Assurance Project Plan: Testing the Use of Biofilms to Measure PFAS in the South Fork Palouse River

Publication number Date Published
21-03-116September 2021
VIEW NOW Quality Assurance Project Plan: Testing the Use of Biofilms to Measure PFAS in the South Fork Palouse River (Number of pages: 51) (Publication Size: 1385KB)

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Author(s) Wong, S.
Description The main goal of this study is to assess the use of biofilms as a tool for tracing sources of PFAS in surface waters. In previous Department of Ecology (Ecology) studies, biofilms have been demonstrated to be a useful environmental tool for (1) measuring and tracing contaminants such as PCBs, PBDEs, and metals, and (2) understanding impacts to organisms at higher trophic levels. However, we have not conducted a field study to test the use of biofilms for measuring PFAS.

Our field location for this 2021 study is the South Fork Palouse River, where previous Ecology studies have shown high concentraptions of PFAS in the surface water. We will collect biofilm and water samples at 11 locations on the river, as well as sediment at a subset of 4 locations, in order to compare PFAS in these matrices.
The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.

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Contact Siana Wong at 360-407-6764 or
Keywords PFAS, biofilm, periphyton, South Fork Palouse River, Palouse River
WATERSHED Water Resource Inventory Area 34 Palouse
DATA Environmental Information Management (EIM) #SWON0004