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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/11945

Title: DEVELOPMENT OF A WEIGHTING SYSTEM FOR USE IN ENVIRONMENTAL HEALTH IMPACT ASSESSMENT ASSOCIATED WITH WATER IMPOUNDMENT PROJECTS IN GHANA AND ITS APPLICA TION I
Authors: Tetteh, Isaac K.
Issue Date: 2004
Publisher: ghana science association
Citation: ghana science association, vol. 6. no. 2
Abstract: The objective of the study was to develop a weighting system for assessing the environmental health impacts associated with water impoundment projects in Ghana. The main water-associated diseases of environmental and health concerns in the country were first procured from the Ministry of Health for the design and development of the weighting system. The weighting system adapted a weighted matrix model in which Magnitude (M) and Importance (W) weight estimations of the diseases were based on fatality and prevalence (spread) respectively, using the panel method. Magnitude estimations were done using ranking and Delphi techniques on a minus (0-10) weighted interval scale, the minus sign indicating the adverse nature of the diseases. Importance weight estimations involved selecting arbitrary prevalence rates ranging from 0-100% to accommodate any prevalence figure and these were also transformed into weights on an absolute weighted interval scale of (0-10). The weighting system converts multiple infections into a common quantitative denominator through normalisation. The impacts of any multiple infections of a population are then summed up into a single value expressed as quantitative weighted impact score which is an estimate of the overall health status. The weighting system subsequently, was applied to assess the overall health status at the national and Local Levels with reference to common water-related diseases. The results showed that the overall health status at both levels was not significantly different from each other (p>0.05). Hence tJl%heaLth status of the rural populace is (! true reflection at the national LeveLand vice versa.
Description: An article published by ghana science association
URI: http://hdl.handle.net/123456789/11945
Appears in Collections:College of Science

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