Triclosan, Chlorinated Triclosan Derivative, and Dioxin Levels in Minnesota Lakes

Abstract

The Microsoft Excel files (.xls) are available in their original form. For preservation and long-term access, the multiple-tab structure of the excel files have been converted to comma separated value (.csv) files and included here as a zip. The data is identical in these two versions, except that the archived version will not include any special formatting of the excel files (colored cells, bold, etc.) or graphs generated from the data.The data were collected and generated during the period of 2010-2012 by collecting sediment cores from lakes in Minnesota, dating the years the sediment was deposited as a function of depth, and extracting sections of the cores with solvent to determine the levels of triclosan (TCS), chlorinated triclosan derivatives (CTD), and dioxins in the sediment (PCDD). Dating was performed at the St. Croix Watershed Research Station, triclosan and chlorinated triclosan derivative measurements at the University of Minnesota Department of Civil Engineering, and dioxin analysis by Pace Analytical. The data consists of eight Excel files that include the following tabs 1) accumulation rate and focus corrected accumulation rate of the target contaminants as function of time (FF_Flux), 2) the concentrations of the target contaminants and function of time, 3) the calibration curves of the instruments for triclosan and chlorinated triclosan derivatives, and 4) various statistical analyses (ANOVA). Note that the further back in time, the deeper the sediment that the sample was derived from.Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota ResourcesNational Science FoundationCBET 096716