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Contributor(s) |
Wong, Felix Yat-hang, The University of Hong Kong, Centre of Urban Planning and Environmental Management (CUPEM), Hong Kong, China; Mato, Alex, Management Consulting, DAVIS LANGDON LLP, London, United Kingdom; Hills, Peter, The University of Hong Kong, Centre of Urban Planning and Environmental Management (CUPEM), Hong Kong, China |
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Abstract |
In 2005, a consortium comprising of thegreenroom, The University of Hong Kong, Davis Langdon a. Seah Management Ltd., and the Business Environment Council completed a combined Life Cycle Assessment/Life Cycle Costing Study of a public rental New Harmony
Block for the Hong Kong Housing Authority. The decision making tool measured the financial implications and ten environmental impacts of selecting 110 alternative building materials from the standard specification. The results showed that NHB block
generated 1.54 HKE-points/CFA and cost HKDollar 18040.46/CFA (USDollar 2313.08/CFA) for the whole 55- year building life-cycle. If Ordinary Portland Cement block partition is changed to gypsum partition, the environmental impacts and the cost would
increase by 0.26% and 0.07%, respectively. The decision-making tool assessed environmental and economic sustainability but did not assess the health advantages/disadvantages from alternative materials. To test the possibility of a health assessment, we
identified three quantitative health indicators suitable for integration to the LCA and LCC tool: 1) risk-ofillness 2) burden of diseases in DALYs and 3) medical cost. This paper defines the health benchmark for existing residential building blocks in HK
and it indicates the total cancer burden of residential building blocks with the three health indicators. The paper will demonstrate a three-tier decision-making process for health, environmental and cost performance with the three indicators and the
health benchmark of a typical HK residential building. The final tool will assess the environmental, economic and health performance of housing developments.
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