G N Pandey is currently working as Director, Institute of Engineering and Technology, Lucknow. He has been on the faculty of Banaras Hindu University, and Harcourt Butler Technological Institute (HBTI), Kanpur, for about 20 years. He also spent two years with the University of Michigan, USA, on a research assignment. He served as Director, Directorate of Environment, Uttar Pradesh, and Director (Technical), Indian Turpentine and Resin Company, Bareilly, prior to his joining this institute. He has guided about two dozen Ph D and about 50 M Tech students. He has five books and about 180 papers to his credit. His current interests are environmental engineering, energy systems engineering and computer applications. He has also served as a consultant to several chemical and allied industries.

G C Carney is presently a senior lecturer at Bristol Polytechnic, UK. He obtained a B Sc and M Sc, both in Agricultural Entomology, from the University of Durham. He did his Ph D in Entomology from the University of Minnesota, USA.

He was employed by Atomic Energy of Canada where he carried out research on the effects of radioactivity on insects. This interest continued during his subsequent employment as an assistant professor at the University of Bowling Green, Ohio, USA

He is the author of several scientific publications in the field of environmental toxicology, including the application of radioactive tracers.