AN ATIONWIDE FIELD TEST OF PHYTOREMEDIATION FOR PETROLEUM

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					A NATIONWIDE FIELD TEST OF PHYTOREMEDIATION FOR PETROLEUM
CONTAMINATED SOILS
1
    P. A. Kulakow and 2L. Erickson
1
 Department of Agronomy, 2004 Throckmorton Plant Sciences Center, Kansas State
University, Manhattan, KS 66506; 2Center for Hazardous Substance Research, 101 Ward
Hall, Kansas State University, Manhattan, KS 66506; 1Phone: (785) 532-7239, 1E-mail:
kulakow@ksu.edu; 2Phone: (785) 532-4313, 2E-mail: lerick@ksu.edu.

        The EPA-sponsored Research Development Technology Forum (RTDF) for
Phytoremediation, Total Petroleum Hydrocarbon (TPH) Subgroup has developed a
protocol for a nationwide field test of phytoremediation of petroleum hydrocarbon-
contaminated soils. Currently 11 sites are entered in the trial. The experimental protocol
specifies three vegetation treatments including a standard grass/legume mixture planted at
all locations, a locally determined vegetation treatment usually including native species or
trees, and an unvegetated control. Soils are to be sampled annually at two depths with the
analysis of soil samples performed at common laboratories. Petroleum hydrocarbon
analysis includes determination of total petroleum hydrocarbons by GC/FID, estimation of
polycyclic aromatic hydrocarbons, and estimation of biomarkers for use in normalization
of the data. Petroleum hydrocarbon composition also will be assessed using the TPH
Criteria Working Group method to fractionate hydrocarbons into 13 aliphatic and aromatic
fractions. The status of the field sites will be summarized along with a summary of the
experimental protocol and some of the issues addressed in early phases of the trial.

Key words: phytoremediation, petroleum hydrocarbons, contaminated soil, vegetation

				
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