Dr. Cronk has broad research interests and expertise in water and environmental health in low-resource settings and the linkages between science, policy, and practice. He is particularly interested in advancing the science in the domains of environmental health in healthcare settings, water, sanitation, and hygiene (WASH) in non-household settings, monitoring, evaluation, and learning for WASH programs, and rural water security and supply, specifically issues related to sustainability, resiliency, and quality.