1997 Ph.D. in Geology, University of South Carolina, Columbia, South Carolina, Dissertation: Application of Polytopic Vector Analysis to Environmental Geochemistry Investigations

1988 M.Sc. in Geology, University of Delaware, Newark, Delaware. Thesis: Pleistocene Planktonic Foraminiferal Biostratigraphy and Paleoecology – Northeast Gulf of Mexico.

1985 B.Sc. in Geology, East Carolina University, Greenville, North Carolina.

1982 B.M. in Music Education. East Carolina University, Greenville, North Carolina

Memberships

• Society of Environmental Toxicology and Chemistry

• International Society of Environmental Forensics

Megson, D. N.B. Benoit, C.D. 1Sandau, S.R. Chaudhuri, T. Long, E. Coulthard,

and G.W. Johnson. (2019). Evaluation of the effectiveness of different

indicator PCBs to estimating total PCB concentrations in environmental

investigations. Chemosphere. 237, 124429.

Johnson, G.W. (2017). Chlorinated dioxin and furan congener profiles from pentachlorophenol sources. Journal of Environmental Protection.  8, 663-677.

Hermanson, M.H., R. Hann, and G.W. Johnson. (2016). Polychlorinated Biphenyls in Tree Bark near Former Manufacturing and Incineration Facilities in Sauget, Illinois, United States.  Environ. Sci. Technol. 50: 6207−6215.

Hermanson, M.H., and G.W. Johnson. (2016).  Polychlorinated dibenzofurans and dibenzo-p-dioxin in tree bark from an industrialized area: What the 2,3,7,8-Cl substituted congeners tell us, and what is missing. Journal of Environmental Protection. 7: 351-357.

Johnson, G.W., Ehrlich, R., Full, W., and Ramos, S. (2015). Chapter 18: Principal components analysis and receptor models in environmental forensics.  In: An Introduction to Environmental Forensics. 3rd Edition. (R. Morrison and B. Murphy, eds.). Elsevier. Amsterdam. pp. 609-653.

Johnson, G.W., Bock, M.J., (2014). Modeled PCB weathering series in principal components space: Considerations for multivariate chemical fingerprinting. In: Environmental Forensics Proceedings of the 2013 INEF Conference. Morrison, .D., Sullivan, G (eds). Royal Society of Chemistry (RSC), Cambridge, UK. 117-124.

Johnson, G.W. (2013) Environmental Forensics, in Encyclopedia of Environmetrics, A.-H. El-Shaarawi and W. Piegorsch (eds), John Wiley & Sons Ltd: Chichester, UK.

Johnson, G.W. (2010). Principal components analysis of environmental chemical data: Experience and application. Environmental Forensics: Proceedings of the 2009 INEF Annual Conference. Royal Society of Chemistry Special Publications. 327: 202-209.

Johnson, G.W., Hansen, L.G., Hamilton, M.C., Fowler, B., and Hermanson, M.H. 2008. PCB, PCDD and PCDF congener profiles in two types of Aroclor 1254. Environmental Toxicology & Pharmacology. 25: 156-163.

Johnson, G.W., Ehrlich, R., Full, W., and Ramos, S. (2007). Chapter 6: Principal components analysis and receptor models in environmental forensics. In: An Introduction to Environmental Forensics. 2nd Edition. (R. Morrison and B. Murphy, eds.). Elsevier. Amsterdam. pp. 207-272.

Johnson, G.W., Quensen, J.F., III, Chiarenzelli, J., and Hamilton, C. (2006). Chapter 10: Polychlorinated Biphenyls. In: Environmental Forensics: A Contaminant Specific Guide (R. Morrison and B. Murphy, eds.). Elsevier. Amsterdam. pp. 187-225.

DeCaprio, A. P., Johnson, G. W., Tarbell, A. M., Carpenter, D. O., Chiarenzelli, J. R., Morse, G. S., Santiago-Rivera, A. L., Schymura, M. J., and Akwesasne Task Force on the Environment. 2005. PCB exposure assessment by multivariate statistical analysis of serum congener profiles in an adult Native American population. Environ. Res. 98, 284-302.

Gary, A.C., G.W. Johnson, D.D. Ekart, E. Platon, and M.I. Wakefield. (2005). A Method for Two-Well Correlation using Multivariate Biostratigraphical Data. In: Recent Developments in Applied Biostratigraphy. (A.J. Powell & J.B. Riding, Eds). The Micropaleontological Society Special Publication. pp. 205-217. Micropaleontological Society. London

Magar, V.S., Johnson, G.W., Brenner, R., Durell, G., Quensen, J.F., III, Foote, E., Ickes, J.A., Peven-McCarthy, C. 2005. Long-term recovery of PCB-contaminated sediments at the Lake Hartwell Superfund Site: PCB Dechlorination I End-Member Characterization. Environ. Sci. Technol. 39: 3538-3547.