2015 National Coastal Conditions Assessment: Algal Toxins and Cyanotoxins in United States Estuary Samples Detected by Liquid Chromatography Triple Quadrupole Mass Spectrometry (LC/MS/MS)

The U.S. Environmental Protection Agency (EPA) National Coastal Condition Assessment (NCCA) is a nationwide survey of coastal and estuarine water quality. During the 2015 EPA NCCA, samples were collected at 732 sites for analysis of algal toxins and cyanotoxins at the Organic Geochemistry Research Laboratory (OGRL) at the U.S. Geological Survey Kansas Water Science Center (KSWSC) by liquid chromatography triple quadrupole mass spectrometry (LC/MS/MS). Samples from the Atlantic, Gulf, and Pacific coasts of the conterminous U.S. were analyzed for anatoxin-a, cylindrospermopsin, domoic acid, dinophysistoxin-1, dinophysistoxin-2, gymnodimine, 10 microcystin congeners, nodularin, okadaic acid, pectenotoxin-2, and 13-desmethyl spirolide c.