Table 2.

Sediment calibration & validation summary.

Sampling points	Calibration				Sampling points	Validation
	NS	r2	p-factor	r-factor		NS	r2	p-factor	r-factor
Sarkinpawa (69)	0.01	0.53	0.88	2.25	Gutalu (79)	−0.11	0.06	0.88	2.96
Dinya (83)	0.91	0.93	1.00	7.57	Kaduna (62)	0.47	0.82	0.63	1.49