Dr. Alex Tat-Shing Chow is a tenured full professor in the Department of Forestry and Environmental Conservation with a joint appointment in the Department of Environmental Engineering and Earth Science at Clemson University in South Carolina, USA. He obtained BS in Chemistry from the University of California Berkeley, and MS and PhD in Hydrologic Science from the University of California, Davis. He studies the budgets and chemistry of dissolved organic matter (DOM) in source water, and is particularly interested in understanding the influences of watershed perturbation and managements on DOM exports affecting downstream biogeochemical processes and drinking water quality.