About the Authors

Seth H. Frisbie

Roles Conceptualization, Data curation, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing

sfrisbie@norwich.edu

Affiliation Department of Chemistry and Biochemistry, Norwich University, Northfield, Vermont, United States of America

Erika J. Mitchell

Roles Formal analysis, Methodology, Writing – original draft, Writing – review & editing

Affiliation Better Life Laboratories, Incorporated, East Calais, Vermont, United States of America

Amy Hoeltge

Roles Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliation Department of General and Organic Chemistry, University of Vermont, Burlington, Vermont, United States of America

Lindsey A. Pett

Roles Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliation Department of Earth and Environmental Sciences, Norwich University, Northfield, Vermont, United States of America

Molly G. Hoeltge

Roles Investigation

Affiliation Lake Champlain Waldorf School, Shelburne, Vermont, United States of America

Competing Interests

The authors have declared that no competing interests exist. EJM’s affiliation is with Better Life Laboratories, Inc., a nonprofit organization that conducts scientific research and provides technical expertise, equipment, and training to help needy people around the world. Better Life Laboratories received no specific funding for this project from any donors. Donors to Better Life Laboratories provided no input in choosing the subject matter of this project, the hypotheses that were tested, the method of analysis, the research findings, or the manner of disseminating the results. This does not alter our adherence to PLOS ONE policies on sharing data and materials.