| Year of Publication | 2015 | Division | Applied Meteorology Research Division |
|---|---|---|---|
| Title | ralationship between rooftop and on-road concentrations of traffic-related pollutants ina busy street canton: ambient wind effects | ||
| Author | Kyung-Hwan Kwak | ||
| Coauthor | sang-hyung Lee, Jeamyeong Mango seo, Seung-Bu Park | ||
| ISBN(ISSN) | Name of Journal | environmental pollution | |
| Category (International/Domestic) | SCI | Vol. No. | |
| Research Project Title | 차세대 도시농림융합스마트기상서비스개발 (2015년) | Publication Date | 2015-10-01 |
| Keywords | Ambient wind direction; Busy street canyon; On-road measurement; Rooftop measurement; Traffic-related pollutants | ||
Rooftop and on-road measurements of O3, NO2, NOx, and CO concentrations were
conducted to investigate the relationship between rooftop and on-road concentrations
in a busy and shallow street canyon with an aspect ratio of ∼0.3 in Seoul, Republic of
Korea, from 15 April to 1 May 2014. The median road-to-roof concentration ratios, correlation
coefficients between rooftop and on-road concentrations, and temporal variations of
rooftop and on-road concentrations are analyzed according to the rooftop wind directions
which are two cross-canyon and two along-canyon directions. The analysis results
indicate that the relationship is strong when the rooftop is situated on the downwind
side rather than on the upwind side. Relative to the cross-canyon wind directions,
one of the along-canyon wind directions can more enhance the relationship. A conceptual
framework is proposed to explain the effect of ambient wind direction on the relationship
between rooftop and on-road concentrations in a street canyon.
conducted to investigate the relationship between rooftop and on-road concentrations
in a busy and shallow street canyon with an aspect ratio of ∼0.3 in Seoul, Republic of
Korea, from 15 April to 1 May 2014. The median road-to-roof concentration ratios, correlation
coefficients between rooftop and on-road concentrations, and temporal variations of
rooftop and on-road concentrations are analyzed according to the rooftop wind directions
which are two cross-canyon and two along-canyon directions. The analysis results
indicate that the relationship is strong when the rooftop is situated on the downwind
side rather than on the upwind side. Relative to the cross-canyon wind directions,
one of the along-canyon wind directions can more enhance the relationship. A conceptual
framework is proposed to explain the effect of ambient wind direction on the relationship
between rooftop and on-road concentrations in a street canyon.
