Bergendahl, John Andrew
Coal tar-based pavement products, including sealcoats and rejuvenators, have been under scrutiny due to the presence of high concentrations of polycyclic aromatic hydrocarbons (PAHs) in the coal tar base. Researchers have found that PAHs mobilize from coal tar sealcoats, primarily through the formation of PAH-laden dust particles. Coal tar-based sealcoats have been banned in many locations in the U.S. due to the concerns over carcinogenic and mutagenic effects of the PAHs they contain. The purpose of this project was to quantify PAHs mobilized from a coal tar-based rejuvenator by evaluating site samples for total PAHs. Total PAH concentrations provided a snapshot of the possible environmental and health risks of coal tar-based products used for pavement maintenance.
Worcester Polytechnic Institute
Major Qualifying Project
All authors have granted to WPI a nonexclusive royalty-free license to distribute copies of the work, subject to other agreements. Copyright is held by the author or authors, with all rights reserved, unless otherwise noted.
Civil and Environmental Engineering