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Title: Describing water quality with aggregate index

Abstract

For a long time, water resources engineers have been concerned about the quantity of water available. However, with the increase of pollution in bodies of water, the attention has also focused on the quality of water resources. Alternative efforts to describe water quality by an aggregate index consisting of subindices of the constituent quality variables are examined. Ambiguity problems exist where all the subindices are acceptable and yet the overall index is not. Eclipsing problems exist where the overall index is insensitive to a single variable; such insensitivity is unacceptable. A mathematical formulation is developed that avoids these problems of ambiguity and eclipsing. Furthermore, the recommended index form is open to increasing the number of variables included within the index.

Authors:
;
Publication Date:
Research Org.:
Univ. of Roorkee (IN)
OSTI Identifier:
20075768
Alternate Identifier(s):
OSTI ID: 20075768
Resource Type:
Journal Article
Journal Name:
Journal of Environmental Engineering (New York)
Additional Journal Information:
Journal Volume: 126; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 0733-9372
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; DRINKING WATER; WATER QUALITY; WATER RESOURCES; MATHEMATICAL MODELS

Citation Formats

Swamee, P.K., and Tyagi, A. Describing water quality with aggregate index. United States: N. p., 2000. Web. doi:10.1061/(ASCE)0733-9372(2000)126:5(451).
Swamee, P.K., & Tyagi, A. Describing water quality with aggregate index. United States. doi:10.1061/(ASCE)0733-9372(2000)126:5(451).
Swamee, P.K., and Tyagi, A. Mon . "Describing water quality with aggregate index". United States. doi:10.1061/(ASCE)0733-9372(2000)126:5(451).
@article{osti_20075768,
title = {Describing water quality with aggregate index},
author = {Swamee, P.K. and Tyagi, A.},
abstractNote = {For a long time, water resources engineers have been concerned about the quantity of water available. However, with the increase of pollution in bodies of water, the attention has also focused on the quality of water resources. Alternative efforts to describe water quality by an aggregate index consisting of subindices of the constituent quality variables are examined. Ambiguity problems exist where all the subindices are acceptable and yet the overall index is not. Eclipsing problems exist where the overall index is insensitive to a single variable; such insensitivity is unacceptable. A mathematical formulation is developed that avoids these problems of ambiguity and eclipsing. Furthermore, the recommended index form is open to increasing the number of variables included within the index.},
doi = {10.1061/(ASCE)0733-9372(2000)126:5(451)},
journal = {Journal of Environmental Engineering (New York)},
issn = {0733-9372},
number = 5,
volume = 126,
place = {United States},
year = {2000},
month = {5}
}