Application of a non-targeted biomonitoring method to characterize occupational chemical exposures of women nurses relative to office workers Kristin E. Knox1*, Dimitri Abrahamsson2, Jessica Trowbridge2, June-Soo Park3, Miaomiao Wang3, Erin Carrera4,5, Lisa Hartmayer4,5, Rachel Morello-Frosch6, R. A. Rudel1 1Silent Spring Institute, Newton, Massachusetts 02460, United States 2Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, California 94143, United States 3Environmental Chemistry Laboratory, Department of Toxic Substances Control, California Environmental Protection Agency, Berkeley, California 94710, United States 4Department of Nursing, University of San Francisco, San Francisco, California, 94143, United States 5California Nurses for Environmental Health & Justice, Bolinas, California, 94924, United States 6Department of Environmental Science, Policy and Management, and School of Public Health, University of California, Berkeley, California 94720, United States *Email: [email protected]

There are 3 R files required to produce the output contained in the paper.

“nta_nurses_neg.R” and “nta_nurses_pos.R” can be run in either order and are independent of each other. These two files perform identical analysis, with the former using the MS-DIAL output from ESI- mode and the latter using the MS-DIAL output from ESI+ mode as the input file. (These input data files can be found in the Supporting Information Tables S10 and S11.)

“nta_nurses_figures.R” generates the figures that are included in the manuscript and Supporting Information (the inputs to this file are generated by nta_nurses_neg.R and nta_nurses_pos.R”)