Ruth Sofield is an Associate Professor of Environmental Toxicology and Chemistry in the Huxley College of the Environment at Western Washington University. She has worked on projects that include: 1) genetically based tolerance to pollutant exposure in marine systems with the NOAA Ecotoxicology Branch, CCHEBR in Charleston, South Carolina, 2) development of groundwater WET tests with photoactive pollutants with the Washington State DOE, 3) understanding humic and fulvic acid interactions with Ag nanoparticles and the effects on chemical speciation and toxicity with Eawag in Dübendorf, Switzerland, and 4) metal contamination and effects in mining systems in Colorado, Idaho, Washington, and British Columbia with agencies including USGS and USEPA.