PCDD and PCDF concentrations in a traffic tunnel environment
- Title
- PCDD and PCDF concentrations in a traffic tunnel environment
- Author
- 김기현
- Keywords
- Tunnel; Diesel vehicle; Correlation analysis; Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/Fs)
- Issue Date
- 2014-07
- Publisher
- Elsevier Science B.V
- Citation
- Science of the Total Environment, 2014, 493, P.773-780
- Abstract
- In an effort to understand the fundamental aspects of air quality in traffic tunnel environments, field campaigns were conducted to measure polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and other important pollutants within two traffic tunnels in Nam San (NS) and Hong Ji (HJ) in Korea in 2009 and 2010. The mean concentrations of Sigma PCDD/Fs (in fg/m(3)) at the two tunnel sites were 1270 (+/- 880) and 1200 (+/- 810), respectively. These values were moderately lower than those measured at a non-tunnel urban background site (1350 (+/- 780) fg/m(3)) - selected as a reference in this study. In addition, seasonal patterns of dioxin concentrations were clearly evident at the traffic tunnels like the urban reference site, showing higher levels during the winter (and spring) than the summer (and fall). The observed seasonal variations were driven by changes in the concentrations of Sigma PCDF congeners, while Sigma PCDD concentrations showed little seasonality. The results of our study suggest that there is no significant difference in source characteristics between the two investigated tunnel sites and urban location, although the role of gasoline and diesel fueled vehicles are considered as the major source in determining the PCDDs and PCDF levels in a tunnel environment. However, given the relative increase in other important ambient pollutant (e.g. PM10 concentrations over Sigma PCDD/Fs in tunnel air (compared to urban background air), the balance of sources in tunnels is clearly different from those in urban air overall.
- URI
- https://www.sciencedirect.com/science/article/pii/S0048969714009462?via%3Dihub
- ISSN
- 0048-9697
- DOI
- 10.1016/j.scitotenv.2014.06.073
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML