University of California, Riverside

Environmental Sciences

David R. Parker

David R. Parker

David Parker Photo

Professor, Emeritus

Academic Degrees:

  • B.S., University of Vermont, 1978
  • M.S., Oregon State University, 1981
  • Ph.D., Virginia Tech, 1988


  • Geochemistry, plant uptake, and food-chain transfer of perchlorate
  • Trace-element biogeochemistry and bioavailability
  • Rhizosphere chemistry
  • Plant toxicities of metals and metalloids

Representative Publications:

  • Parker, D. R., A. L. Seyfferth, and B. K. Reese. 2008. Perchlorate in groundwater: A synoptic survey of "pristine" sites in the coterminous United States. Environ. Sci. Technol. 42:1465-1471.
  • Hamon, R. E., D. R. Parker, and E. Lombi. 2008. Advances in isotopic dilution techniques in trace element research: A review of methodologies, benefits and limitations. Adv. Agron. 99:289-343.
  • Seyfferth, A. L., N. C. Sturchio, and D. R. Parker. 2008. Is perchlorate metabolized or retranslocated within lettuce leaves? A stable-isotope approach. Environ. Sci. Technol. 42:9437-9442.
  • Parker, D. R. 2009. Perchlorate in the environment: The emerging emphasis on natural occurrence. Environ. Chem. 6:10-27.
  • Lybrand, R. A., G. Michalski, R. C. Graham, and D. R. Parker. 2013. The geochemical associations of nitrate and naturally formed perchlorate in the Mojave Desert, California, USA. Geochim. Cosmochim. Acta. 104:136-147.

Courses Taught:

  • ENSC 136 Chemistry of Natural Waters
  • SWSC 232 Biogeochemistry

Graduate Program Affiliations and Research Focus Areas:


More Information

General Campus Information

University of California, Riverside
900 University Ave.
Riverside, CA 92521
Tel: (951) 827-1012

Department Information

Environmental Sciences
Geology 2460

Tel: (951) 827-5116
Fax: (951) 827-4652