ARCHIVED CONTENT: In December 2020, the CZO program was succeeded by the Critical Zone Collaborative Network (CZ Net) ×
Christina CZO was active 2009-2013 ×

Donald L. Sparks


.(JavaScript must be enabled to view this email address), 302.831.6378

Soil and water contaminants, including metals; remediation of soil, soil binding of plant nutrients

S. Hallock du Pont Chair of Soil and Environmental Chemistry; and Francis Alison Professor; Department of Plant and Soil Sciences; University of Delaware
Univ. Delaware - University of Delaware
Sparks's Univ. Delaware page

Director, Delaware Environmental Institute (DENIN)
DENIN - Delaware Environmental Institute

Ph.D., Soil Science, Virginia Polytechnic Institute and State University, 1979

Research in the Environmental Soil Chemistry Laboratory focuses on how toxic metals such as arsenic (As), nickel (Ni), and zinc (Zn) and plant nutrients such as phosphorus (P) and sulfur (S) are bound (sorbed) on soils. We conduct these studies under different environmental and experimental conditions (pH, time, temperature, hydration state, presence of microbes) to best represent the natural environment. We use bright light sources generated at syncrotron facilities (associated with National Laboratories) to determine the forms (species) of the metals and nutrients in the soil at the molecular scale.


Plant and Soil Sciences, University of Delaware, 153A Townsend Hall, Newark, DE 19716

CZO Publications