Influence of traffic characteristics on polycyclic aromatic hydrocarbon build-up on urban road surfaces

Gunawardena, Janaka, Ziyath, Abdul Mohamed, Egodawatta, Prasanna, Ayoko, Godwin A., & Goonetilleke, Ashantha (2014) Influence of traffic characteristics on polycyclic aromatic hydrocarbon build-up on urban road surfaces. International Journal of Environmental Science and Technology, 11(8), pp. 2329-2336.

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Abstract

Traffic is one of the prominent sources of polycyclic aromatic hydrocarbons (PAHs) and road surfaces are the most critical platform for stormwater pollution. Build-up of pollutants on road surfaces was the focus of this research study. The study found that PAHs build-up on road surfaces primarily originate from traffic activities, specifically gasoline powered vehicles. Other sources such as diesel vehicles, industrial oil combustion and incineration were also found to contribute to the PAH build-up. Additionally, the study explored the linkages between concentrations of PAHs and traffic characteristics such as traffic volume, vehicle mix and traffic flow. While traffic congestion was found to be positively correlated with 6- ring and 5- ring PAHs in road build-up, it was negatively correlated with 3-ring and 4 ring PAHs. The absence of positive correlation between 3-ring and 4-ring PAHs and traffic parameters is attributed to the propensity of these relatively volatile PAHs to undergo re-suspension and evaporation. The outcomes of this study are expected to contribute effective transport and land use planning for the prevention of PAH pollution in the urban environment.

Impact and interest:

4 citations in Scopus
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4 citations in Web of Science®

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ID Code: 82112
Item Type: Journal Article
Refereed: Yes
Keywords: Stormwater quality, Traffic emissions, Congestion, Traffic volume, Stormwater pollutant processes
DOI: 10.1007/s13762-014-0561-8
ISSN: 1735-1472
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Water Quality Engineering (090508)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Schools > School of Civil Engineering & Built Environment
Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 Islamic Azad University (IAU)
Copyright Statement: The final publication is available at Springer via http://dx.doi.org/10.1007/s13762-014-0561-8
Deposited On: 01 Mar 2015 22:50
Last Modified: 03 Dec 2015 08:34

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