University of Iowa University of Iowa Iowa Research Online Iowa Research Online Theses and Dissertations Spring 2016 Naturally occurring radioactive materials associated with Naturally occurring radioactive materials associated with unconventional drilling for natural gas unconventional drilling for natural gas Andrew Wyatt Nelson University of Iowa Follow this and additional works at: https://ir.uiowa.edu/etd Part of the Toxicology Commons Copyright © 2016 Andrew Wyatt Nelson This dissertation is available at Iowa Research Online: https://ir.uiowa.edu/etd/5579 Recommended Citation Recommended Citation Nelson, Andrew Wyatt. "Naturally occurring radioactive materials associated with unconventional drilling for natural gas." PhD (Doctor of Philosophy) thesis, University of Iowa, 2016. https://doi.org/10.17077/etd.hjbou3bs Follow this and additional works at: https://ir.uiowa.edu/etd Part of the Toxicology Commons