Baoshan Xing is Professor of Environmental and Soil Chemistry in the Department of Plant, Soil, and Insect Sciences, University of Massachusetts Amherst, where he has been actively involved in teaching and research since 1996. Dr. Xing received his PhD from the University of Alberta, Canada, in 1994. His research work ranks in the top 1% of cited authors for journals in environmental sciences and ecology.

Nicola Senesi is Professor of Soil Chemistry and Head of the Department of Agroforestal and Environmental Biology and Chemistry of the University of Bari, Bari, Italy, where he has been actively involved in research and teaching (as research assistant, assistant professor, and associate professor) since 1969. He was conferred a Doctorate Honoris Causa by the Institut National Polytechnique de Toulouse, France, in 2000.

The late Pan Ming Huang received his PhD in soil science from the University of Wisconsin–Madison. He was Professor Emeritus of Soil Science at the University of Saskatchewan, Saskatoon, Canada. His research work has significantly advanced knowledge on the formation chemistry and the nature and surface reactivity of mineral colloids, organic matter, and organomineral complexes of soils and sediments and their role in the dynamics, transformations, and fate of nutrients, toxic metals, and xenobiotics in terrestrial and aquatic environments.