Utilization of boron as a critical parameter in water quality evaluation: implications for thermal and mineral water resources in SW Germany and N Switzerland

2000 ◽  
Vol 40 (1-2) ◽  
pp. 73-89 ◽  
Author(s):  
S. R. Barth
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Critical Parameter ◽  
Mineral Water ◽  
Quality Evaluation ◽  
Water Quality Evaluation

Composite Water Quality: Evaluation and Management Feedbacks

2007 ◽  
Vol 42 (1) ◽  
pp. 20-25 ◽  
Author(s):  
Arkadi Parparov ◽  
K. David Hambright
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Water Resources Management ◽  
Quality Evaluation ◽  
Quantitative Estimation ◽  
Water Quality Evaluation ◽  
Resources Management ◽  
Simplified Procedure ◽  
The Relationship ◽  
Equal Weighting

Abstract In this article we both outline and offer an approach to quantitative estimation of aggregated water quality, in the form of the Composite Water Quality Index (CWQI), calculated as a weighted sum of rating values for a set of preselected water quality indices. The weighting procedure uses variable weights that are inversely proportional to the separate rating values. We also suggest a simplified procedure for estimating the sensitivity of several common algorithms that may be used for CWQI calculations. Among the different methods of CWQI calculation, Smith's minimum operator had the highest sensitivity, while an equal weighting procedure based on the arithmetic mean had the lowest sensitivity. We discuss the relationship between the choice of method for a CWQI calculation and the strategy of water resources management, and show that besides its indicative function, the CWQI should serve as a target of, and tool for, water resources management.

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