Human health risk assessment: recreational use of a brownfield site volunteer Army ammunition plant chemical farmers industries, inc., lease area Chattanooga, Tennessee

This thesis investigates the suitability of a lead-contaminated Brownfield, the Volunteer Army Ammunition Plant (VAAP) site in Chattanooga, for recreational use such as children's softball. The assessment includes a review of soil sample data obtained at the VAAP by IT Corporation from 1994 to 1999, particulate monitoring of softball activities at Warner Park by the author in 1999-2000, and determination of the fate and transport of lead contamination in the soil. The fate and transport were evaluated using EPA's Integrated Exposure Uptake Biokinetic (IEUBK) model for children under 7 years of age. The adult effects were calculated using an EPA Preliminary Remediation Goal spreadsheet which was modified to predict blood lead levels (PbB). Lead concentration was modeled assuming thorough mixing of the surficial soil during site preparation activities. Consideration was given to the frequency of activities and transfer of dust to the home. The lead content, as reported, was found to create an unacceptable risk of excessive blood lead levels in the juvenile population. The IEUBK model was also used to predict soil concentration goals for lead remediation. The lead soil concentration goals were determined based on the statistical probability of a fraction of the population having PbB levels greater than 10 μg/dl. For five percent of the population having a PbB greater than 10 μg/dl, the lead concentration in the soil should be less than 800 ppm. If the soil concentration was lowered to less than 400 ppm, only one percent of the population would be predicted to have a PbB greater than 10 μg/dl.

Grantor dc:publisher

University of Tennessee at Chattanooga

Author dc:creator

• Skipper Koss, Sandra Gail

Contributors dc:contributor

• Cunningham, James C
• Henry, James; Bailey, Rob; Clevenger, Wendy
• College of Engineering and Computer Science

• Soils--Lead content
• Soil pollution--Tennessee--Chattanooga
• Children--Health risk assessment
• Environmental risk assessment

Licence

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language

English, eng

Identifier

LB2369.2 .K677 2000

OAI identifier oai:identifier

oai:scholar.utc.edu:theses-2095