percentage of variables that do not meet their objectives at least once during the time
period under consideration (failed variables) in relation to the total number of
variables measured; F 2 represents the percentage of individual tests that do not
meet objectives (failed tests) and; F 3 represents the amount by which failed test
values do not meet their objectives.
F 1 ¼
Number of failed variable
Total nomber of variables
 100
ð3:3Þ
Table 3.9 (continued)
Statistical
approaches
Shoji et al.’s Composite Pollution Index
Joung et al.’s Index of Partial Nutrients (Factor
Analysis)
Joung et al.’s Index of Total Nutrients (Factor
Analysis)
Coughlin et al.’s Principal Component Index
(Principal
Component Analysis)
Shin and Lam (Principal Component Analysis)
Parinet et al.’s (Principal Component Analysis)
Harkins’s Index (Kendall Ranking Approach,
1975) (NonParametric Classification)
Schaeffer and Janardan’s Beta Function Index
Kung et al.’_s Fuzzy Clustering
Biological indices
Macroinvertebrates
Biomonitoring Working Party
Biological Families Index
Fish
Index of Biological Integrity
Extended Biological Index (Adapted from
Woodiwis (1978)
Biological Index)
Diatoms
Index of Sensitivity to Pollution (CEMAGREF,
1982)
Biological Index of Diatoms
Macrophytes
Macrophytes Index
Index of Macroscopic Aquatic Vegetation
Hydro-morphological indices
Connectivity
Habitat
Fluvial Connectivity Index
Fluvial Habitat Index
Qualitative Habitat Evaluation Index
Vegetation
Fluvial Vegetation Index
Bank Vegetation Quality Index
3 Surface Water Quality and Analysis
81