Table 5.

Comparison of the metal background values defined for the Seine River (Thévenot et al. 2002) for the Orge River (this study) and the Upper Continental Crust (Taylor and McLennan, 1995)

	Cr	Co	Ni	Cu	Zn	Sb	Pb	Al
mg.kg−1
Luvisol (Saclay plateau soil)	69	10	31	11	74	0.6	18	49,700
Seine backgrounda,b	40	9	16	15	60	0.8	20	33,000
Upper Continental Crustc	35	10	20	25	71	0.2	20	80,400

^aThévenot et al. 2002

^bLe Cloarec et al. 2011

^cTaylor & Mclennan 1995