10.1594/PANGAEA.930832Hull, Erin AErin AHull0000-0001-9882-2843Neumann, Rebecca BRebecca BNeumann0000-0003-3464-9046Olden, Julian DJulian DOldenGawel, James EJames EGawel0000-0002-1595-3678PANGAEA2021arseniccrayfishfishlittoral sedimentsnailwater columnEvent labelLATITUDELONGITUDEDATE/TIMESpeciesRegistration number of speciesUniform resource locator/link to referenceTissue, sampling(Trimethylarsaniumyl)acetate, per dry mass, tissueArsenite, per dry mass, tissueDimethylarsinic acid, per dry mass, tissue2-Hydroxyethyl-trimethylarsonium, per dry mass, tissueMethylarsonic acid, per dry mass, tissueArsenate, per dry mass, tissueSumMultiple investigationsInductively coupled plasma mass spectrometer (ICP-MS), Agilent, 79002018-08-08T00:00:00/2019-06-19T00:00:00Dataset10.1016/j.scitotenv.2021.14531810.1594/PANGAEA.93083310.1594/PANGAEA.93083910.1594/PANGAEA.930841176 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalBetween 2 and 6 littoral sediment samples were collected in 2018 and 2019 from nearshore (1-2 m depth) in each lake using a dredge (Wildco Petite Ponar Stainless Steel Grab) and dried at 60 °C overnight and homogenized using a porcelain mortar and pestle. Oven-dried sediment samples were digested using a microwave-assisted (CEM MARS 5) total digestion protocol (modified EPA method 3015a). Concentrations of total arsenic in digested sediment samples were determined by inductively-coupled plasma mass spectrometry (ICP-MS) on an Agilent 7900 at the University of Washington Tacoma.#0 = Below detection limit-122.304-122.29247.28547.327United States