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Oklahoma Fish Kill Study: Looking for a Toxic Needle in an Environmental Haystack
Citation:
Jones-Lepp, T., Don Betowski, C. Rosal, W. Sovocool, P. DeArmond, AND V. Taguchi. Oklahoma Fish Kill Study: Looking for a Toxic Needle in an Environmental Haystack . Presented at 62nd ASMS Conference on Mass Spectrometry and Allied Topics, Baltimore, MD, June 15 - 19, 2014.
Impact/Purpose:
Using liquid chromatography-time-of-flight high-resolution mass spectrometry (LC-TOFMS), LC-Fourier transform mass spectrometry (LC-FTMS) and/or liquid chromatography-ion trap mass spectrometry (LC-ITMS), the conditional assignments of the molecular weights and chemical formulas of the significant unknown contaminants were determined during four active fish kills inthe Red River (Oklahoma, United States).
Description:
Since December 2011 the U.S. Environmental Protection Agency’s Office of Research and Development, National Exposure Research Laboratory-Environmental Sciences Division (EPA/ORD-NERL-ESD) has assisted EPA Region 6 and the State of Oklahoma Department of Environmental Quality (OKDEQ) in identifying unknown contaminant(s) that were present during four fish kills in the Red River watershed. These environmental samples were unique in that they were collected during the active phase of the fish kills along the Red River (Oklahoma, United States) in 2011, 2012 and 2013. Using liquid chromatography-time-of-flight high-resolution mass spectrometry (LC-TOFMS), LC-Fourier transform mass spectrometry (LC-FTMS) and/or liquid chromatography-ion trap mass spectrometry (LC-ITMS), the conditional assignments of the molecular weights and chemical formulas of the significant unknown contaminants were determined.