Yeasmin, S., Singh, B., Johnston, C.T., Sparks, D.L., Hua, Q. Changes in Particulate and Mineral Associated Organic Carbon with Land Use in Contrasting Soils. Pedosphere.

Izaditame, F., Siebecker, M.G., Sparks, D.L. Sea-Level-Rise-Induced Flooding Drives Arsenic Release from Coastal Sediments. Journal of Hazardous Materials.

Sparks, D.L. 2021. Impact of a Changing Climate on the Coastal Environment. March 3, UD Retired Faculty Meeting. Newark, DE.

Sparks, D.L. 2021. My Career Path. March 23. UD Honors Class as Part of Francis Alison Society Member Presentations. Newark, DE.

Sparks, D.L. 2021. Shining Light on the Dynamics of Soil Chemical Processes. Keynote Talk. April 14. 2nd International Pan American Light Sources for Agriculture Meeting. Campinas, Brazil

Sparks, D.L. 2021. Impact of Environmental Change on Biogeochemical Cycling in Soil Systems. Philippe Duchaufour Medal Lecture. April 21.  European Union of Geosciences Annual Meeting, Vienna, Austria.

Fischel, M.H., Clarke, C.E., Sparks, D.L. Kinetics of arsenic oxidation by naturally formed manganese-oxides. American Chemical Society. April 15.

Presentations

Tomaszewski, E.J., Coward, E.K., Sparks, D.L. Organic matter adsorption and fractionation to ferrihydrite under different salinity conditions. American Chemical Society. April 14.