EPA Science Inventory

LAND TREATMENT OF PAH-CONTAMINATED SOIL: PERFORMANCE MEASURED BY CHEMICAL AND TOXICITY ASSAYS

Contact
CAROLYN M ACHESON
phone: 5135697190
email: acheson.carolyn@epa.gov


Contact
GREGORY D SAYLES
phone: 5135697607
email: sayles.gregory@epa.gov


Contact
LINA W CHANG
phone: 5135697442
fax: 513/569-7609
email: Chang.Lina@epa.gov


Contact
RICHARD C BRENNER
phone: 5135697657
email: brenner.richard@epa.gov


Contact
JOHN R MEIER
phone: 5135697440
email: meier.john@epa.gov


Citation:

Sayles, G., C. Acheson, M. J. Kupferle, Y. Shan, Q. Zhou, J. Meier, L. Chang, AND R. Brenner. LAND TREATMENT OF PAH-CONTAMINATED SOIL: PERFORMANCE MEASURED BY CHEMICAL AND TOXICITY ASSAYS. Environmental Science and Technology 33(23):4310-4317, (1999).

Description:

The performance of a soil remediation process can be determined by measuring the reduction in target soil contaminant concentrations and by assessing the treatment's ability to lower soil toxicity. Land treatment of polycyclic armomatic hydrocarbon (PAH)-contaminated soil from a former wood-treating site was simulated at pilot scale in temperature-controlled soil pans. Nineteen two-through six-ring PAHs were monitored with time (initial total PAHs = 2800 mg/kg). Twenty-five weeks of treatment yielded a final total PAH level of 1160 mg/kg. Statistically significant decreases in concentrations were seen in total, two-, three-, and four-ring PAHs. Carcinogenic and five-and six-ring PAHs showed no significant change in concentration. Land treatment resulted in significant toxicity reduction based on root elongation,Alliumn chromosomal aberration, and solid-phase Microtox bioassays. Acute toxicity, as measured by the earthworm survival assay, was significantly reduced and completely remove. The Ames spiral plate mutagenicity assay revealed that the untreated soil was slightly mutagenic and that treatment may have reduced mutagenicity. The variety of results generated from the chemical and toxicity assays emphasize the need for conducting a battery of such tests to fully understand soil remediation processes.

Record Details:

Record Type: DOCUMENT (JOURNAL/PEER REVIEWED JOURNAL)
Start Date: 12/01/1999
Completion Date: 12/01/1999
Record Last Revised: 12/22/2005
Record Created: 04/24/2000
Record Released: 04/24/2000
Record ID: 13522

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT