This individual is a Professor Emeritus and Ivan Racheff Professor specializing in environmental engineering, with expertise in air quality, aerosol chemistry, and sustainable emission control technologies. Holding a Ph.D. from the University of Washington, they have made significant contributions to environmental monitoring and pollution mitigation. Recognized with awards like the Frank A. Chambers Excellence Award and Lyman A. Ripperton Educator Award, they serve as an editor for leading journals and actively participate in professional societies. Their research focuses on innovative methods for gas separation and ammonia emissions reduction. Committed to education and mentorship, they have guided numerous graduate students and received multiple teaching honors.