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Person

Kevin A Thorn

Emeritus scientist
Office of the Chief Operating Officer

Email: kathorn@usgs.gov
Office Phone: 303-236-3979

Location
Building 95
P.O. Box 25585
Denver Federal Center
Lakewood , CO 80225-0585
US

Supervisor: Dorothea (Dot) J Lundberg
Humic substances are the predominant form of natural organic matter (NOM) in soil and water and comprise the major pools of biologically refractory organic carbon and nitrogen in the biosphere. Humic substances play a role in almost all geochemical processes affecting soil and water. Knowledge of the formation and mineralization pathways of soil and aquatic humic substances is therefore critical to an understanding of the biogeochemical cycles of carbon and nitrogen, and climate change. Humic substances act as electron donor-acceptor systems and thus participate in oxidation –reduction processes with transition metal ions and biological systems in soil and water environments. Chlorination and chloramination of...
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