Detailed Information

Cited 5 time in webofscience Cited 7 time in scopus
Metadata Downloads

The economic effect of green roofs on non-point pollutant sources management using the replacement cost approach

Authors
Jung, YounghunYeo, KyudongOh, JeseungLee, SeungOhPark, JeryangSong, Chang Geun
Issue Date
Nov-2016
Publisher
KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE
Keywords
green roofs; impervious area; non-point source pollution loads; water quality improvement; replacement cost approach; benefit estimation
Citation
KSCE JOURNAL OF CIVIL ENGINEERING, v.20, no.7, pp.3031 - 3044
Journal Title
KSCE JOURNAL OF CIVIL ENGINEERING
Volume
20
Number
7
Start Page
3031
End Page
3044
URI
https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/7198
DOI
10.1007/s12205-016-0370-3
ISSN
1226-7988
Abstract
A green roof is one of the sustainable management alternatives for mitigating non-point source discharges which have increased along with expanding impervious areas due to urbanization. Although technically viable, it is also necessary to assess its validity by economic analysis because green roof projects typically require a substantial amount of budget. Four scenarios were established to (1) analyze the effectiveness of green roofs for alleviating non-point source pollution; (2) present the criteria of economic analysis; and (3) estimate benefits by using the replacement cost approach. The Cheonggyecheon watershed in Seoul, Korea is selected as a study area because of its large impervious surface, and XP-SWMM is used for rainfall-runoff and water quality simulations. Our analyses showed that 817,884 kg/yr, 683,781 kg/yr, 452,758 kg/yr, and 356,523 kg/yr of Biochemical Oxygen Demand (BOD) loading can be reduced in the four scenarios (S-1 > 65 m(2); S-2 > 100 m(2); S-3 > 200 m(2); S-4 > 300 m(2)) based on building roof area, respectively. And the benefits for 30 years resulting from those scenarios were estimated to be United States Dollars (USD) 257.3 million, USD 228.8 million, USD 174.6 million, and USD 149.2 million with currency exchange rate 1USD = 1,182 KRW. We expect that this study will contribute to a more economically accurate assessment for the validity of green roof projects to sustain environmental health in urban areas.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > Civil and Environmental Engineering > Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Lee, Seung Oh photo

Lee, Seung Oh
Engineering (Civil and Environmental Engineering)
Read more

Altmetrics

Total Views & Downloads

BROWSE