River water quality index for Morocco using a fuzzy inference system

Environmental Systems Research

Table 2 Fuzzy index scores with membership grades (GoM) for different classes

Period	Station	IMBP class	MFWQI class	GoM
Jan.-09	Cheikh Rguig	Poor	Very poor	0.85
Jan.-09	Cheikh Rguig	Poor	Poor	0.15
Jan.-09	Sidi Med Cherif	Average	Poor	0.86
Jan.-09	Sidi Med Cherif	Average	Average	0.14
Apr.-09	Ras, El Fathia	Average	Poor	0.5
Apr.-09	Ras, El Fathia	Average	Average	0.5
July-09	Cheikh Rguig	Average	Poor	0.5
July-09	Cheikh Rguig	Average	Average	0.5
July-09	Ouljat Haboub	Good	Good	0.68
July-09	Ouljat Haboub	Good	Average	0.32
July-09	Sidi Jaber	Average	Poor	0.75
July-09	Sidi Jaber	Average	Average	0.25
July-09	Skhirat	Good	Average	0.95
July-09	Skhirat	Good	Good	0.05