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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Hydro-environment : Environmental assessment using environmental sustainability index (esi) for labuan island, malaysia
Environmental assessment using environmental sustainability index (esi) for labuan island, malaysia
The Labuan Island lies 8 km off the coast of the State of Sabah, Malaysia at the nearest, and on the northern edge of the
Brunei Bay facing the South China Sea covering an area of 95.2 km². For safeguarding the environment Labuan Island
from the negative impacts of proposed developments an Integrated Environmental Study (IES) were carry out.
Integration of all components and parameters in Physico-Chemical, Biological, and Socio-economic sectors under this
study requires a mechanism to evaluate them. By assigning a predetermined numerical value for the components or
parameters in each of the sectors and subsequently summing all of them systematically via an inter-related matrix, a
ranking system can be obtained that will provide the integrated Environmental Sustainability Index (ESI) for Labuan
Island. The ESI is an indication of the sustainability of the sub-basin in relation to the processes operative in the
environment. The Island are divided into 14 sub basin based on river catchment area. Each sub-basin is analysed based
on the ESI derived from the Environmental Score (ES). ES is the cumulative score for all components ranked, and the
index is expressed in percentages (Rank I: 1 – 20%, Rank II: 21 – 40%, Rank III: 41 – 60%, Rank IV: 61 – 80%, Rank V:
81 – 100%). The higher the percentage, the more susceptible the environment is to adverse impacts or is already in an
unsustainable state. From the study a total of nine sub-basins were ranked as Rank III and five sub-basins were ranked
as Rank IV, there are no sub-basins with ESI ranks of I, II and V.
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Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Hydro-environment
Date Published : 17/08/2015
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