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Title: Environmental impacts of building materials and building services components for commercial buildings in Hong Kong
Authors: Chau, CK 
Yik, WH
Hui, WK
Liu, HC
Yu, HK
Keywords: Lifecycle analysis
Building and building services materials
Environmental impacts
Issue Date: 2007
Publisher: Elsevier
Source: Journal of cleaner production, 2007, v. 15, no. 18, p. 1840-1851 How to cite?
Journal: Journal of cleaner production 
Abstract: The growing concerns over the environmental impacts of buildings have led to increasing demands for more environmental friendly buildings and building materials. Hitherto, there are not any comprehensive studies that show the overall environmental impact profiles of building materials and building services components for buildings. This paper intends to bridge this gap by reporting overall lifecycle environmental profiles of buildings as well as the ranking orders of environmental impacts of all the building materials and building services materials and components for commercial buildings. Twenty-five commercial buildings in Hong Kong, which include three Grade A office buildings, four Grade B office buildings, one Grade C office buildings, four retail centers and three hotels, have been selected for our study. Based upon these collected samples, no statistical differences were found in the average lifecycle environmental impacts for different building types despite some minor variations were detected. Subsequently, 10 types of building materials and 10 types of building services components have been identified for their significant lifecycle environmental impacts on commercial buildings. Among all, concrete, reinforcement bar, copper power cables, and copper busbars were ranked to be the four most significant materials or components to the total lifecycle environmental impacts. These should form the major targets for improvements in environmental performance of commercial buildings.
ISSN: 0959-6526
DOI: 10.1016/j.jclepro.2006.10.004
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