Author ORCID Identifier
Date Available
4-27-2018
Year of Publication
2018
Degree Name
Master of Science in Civil Engineering (MSCE)
Document Type
Master's Thesis
College
Engineering
Department/School/Program
Civil Engineering
First Advisor
Dr. Kelly G. Pennell
Abstract
Hazardous waste sites and aging wastewater infrastructure are common in the United States. There are hundreds of thousands of contaminated sites and more than a million miles of sewer pipes. Populations living close to hazardous waste sites often suffer from increased risk of adverse health effects due to exposure to contaminated environmental media. Vapor intrusion is one process by which nearby populations can be exposed to volatile organic compounds (VOCs). Aging wastewater infrastructure is important for vapor intrusion site assessments because sewer pipes can serve as preferential vapor transport pathways. Near contaminated sites, pipe deterioration allows migration of contaminants into sewers and potential accumulation of chemical vapors in sewer gas and nearby buildings. The objectives of this study are to develop a screening-level method to identify contaminated sites where additional evaluation of vapor intrusion is necessary, and then conduct field sampling at these sites to investigate sewers as potential vapor intrusion pathways. Sampling was conducted at four study sites, which consist of former and current dry cleaning facilities located in Lexington, Kentucky. The results of this study demonstrate that preferential vapor intrusion pathways such as sewers can facilitate the spread of vapor intrusion exposure risks beyond source areas of contamination.
Digital Object Identifier (DOI)
https://doi.org/10.13023/ETD.2018.129
Recommended Citation
Willett, Evan James, "PREFERENTIAL PATHWAYS FOR VAPOR INTRUSION: SITE SCREENING AND FIELD SAMPLING OF SEWERS TO ASSESS INHALATION EXPOSURE RISKS" (2018). Theses and Dissertations--Civil Engineering. 64.
https://uknowledge.uky.edu/ce_etds/64
