For fast access to experts, email news@ucr.edu  Haizhou Liu, associate professor of chemical and environmental engineering. Professor Liu works to discover new and improved methods of removing impurities from drinking water and ensuring the safety of our water supply. Liu can speak to the difference between chloramine and chlorine, how to keep harmful microorganisms out of drinking water, and on the relative efficiency of various water treatment methods. haizhou@engr.ucr.edu