David L. Johnson
Professor
Environmental Chemistry
419 Jahn Laboratory
470-6829
dljohnson@esf.edu
B.S., 1965, Antioch College, Chemistry. Ph.D., 1973, University of Rhode Island Oceanography(Grad. Sch. of Oceanography). Research Associate, University of South Florida, Tampa, 1973
Research by D.L. Johnson
David Johnson has a particular interest in the development of analytical techniques for the determination of the chemical and physical forms of heavy metals in soils, and atmospheric and aquatic samples. In the past, he has been instrumental in the application of automated scanning electron microscopy/image analysis techniques for individual particle analysis. The "finger printing" of particle types present in samples allows one to identify the sources of heavy metals in such materials as house dust, suspended sediments, and fugitive dusts from industrial processes. Current activities seek to combine geography with urban geochemistry (GAUGE) to study the spatial and temporal resolution needed for addressing pollution abatement and remediation of metals in urban soils, and for the creation of geography-based exposure assessments in environmental health studies. Particular emphasis is being given to the transport of outdoor soils to the indoor environment. Dr. Johnson was a member of a National Research Council study committee whose report on Superfund and Mining Megasites--Lessons from the Coeur d'Alene River Basin was released in July 2005.
Recent Publications
(Complete Listing Here)
- Mass Transfer of Soil Indoors by Track-in on Footwear. A. Hunt, D.L. Johnson and D.A. Griffith, Science of the Total Environment 370(2-3): 360-371 (2006).
- Role of Deciduous Tree Ecosystems in Accumulation of PAH's on Deciduous Tree Leaves. V.A. Jouraeva, D.L. Johnson, J.P. Hassett, D.J. Nowak, D. Barbarossa and N. Shipunova. Environmental Research 102(3): 272-282 (2006).
- Seasonality and Children's Blood Lead Levels: Developing a Predictive Model Using Climatic Variables and Blood Lead Data from Indianapolis, Indiana, Syracuse, New York, and New Orleans, Louisiana (USA), M. Laidlaw, H.W. Mielke, G.M. Filippelli, D.L. Johnson and C.R. Gonzales, Environmental Health Perspectives 113(6): 793-800 (2005).
- Initial Results for Urban Metal Distribution in House Dusts of Syracuse, NY, USA, D.L. Johnson, J. Hager, A. Hunt, D.A. Griffith, S. Blount, S. Ellsworth, J. Hintz, R. Lucci, A. Mittiga, D. Prokhorova, L. Tidd, M. M. Millone, and M. Vincent, Science in China , Series C: 48, Suppl I, 92-99 (2005).
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