| Study ID | JMED0002 |
| Study Name | Non-targeted Screening of Toxic Organics in Fish Tissue |
| EIM Data Entry Review Status | Not Reviewed |
| Study Type | General environmental study |
| Study Purpose | Manchester Environmental Laboratory (MEL) developed the capability for Quadrupole Time of Flight (QTOF) analysis through gas chromatography mass spectrometry (GC-MS) in 2018. Ecology’s Toxic Studies Unit (TSU) is interested in using this opportunity to (1) assess the potential uses and efficacy of QTOF for future fish tissue toxics screening applications and (2) screen archived fish tissue to better understand the toxics burden of fish above and beyond our current standard practice of analyzing for target analytes.
Three sets of archived tissue will be analyzed using QTOF for this project. They include: individual samples of white sturgeon collected in the lower Columbia River in summer 2017, composited finfish species collected in Central Lake Washington in summer 2018, and composited finfish species collected in the Lower Cowlitz River in summer 2016. Laboratory analysis is expected to yield a list of tentatively identified compounds, which will be compared to known sample concentrations of the original sample, or to regional values. |
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| Ecology Program or Other Responsible Entity | Ecy Environmental Assessment Program |
| Ecology Contact | James Medlen |
| Ecology Monitoring Program | |
| Submitting Organization | WA Department of Ecology |
| Study QA Planning Level | LEVEL 3: QAPP, SAP, or Equivalent. |
| Study QA Project Plan Description | The project goals are two-fold; (1) assess the potential uses and efficacy of Quadrupole Time of Flight (QTOF) gas chromatography-mass spectrometry for future fish tissue toxics screening applications and (2) screen archived fish tissue to better understand the toxics burden in fish above and beyond our current practice of analyzing for target analytes. |
| Study QA Assessment Level | Level 1: Data neither Verified nor Assessed for Usability |
| Study Result Description | A report will be written. |
| Study Comment | MEL QTOF Analysis. |
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