Ashok V. Naimpally, PhD, PE, is a professor in the College of Engineering and Computer Science at California State University, Long Beach. A licensed professional engineer in the state of California, Dr. Naimpally's teaching areas include chemical engineering and environmental technology. He holds a doctorate from Syracuse University and has authored over 40 papers for trade journals and conferences.

Kirsten Sinclaire Rosselot, PE, is the owner of Process Profiles, a consulting firm that specializes in environmental planning and management tools. Ms. Rosselot obtained her bachelor of science degree in chemical engineering from the University of California, Los Angeles, and is a licensed professional engineer in the state of California.