Spatial Variability of Heavy Metals in Soils and Sediments of “La Zacatecana” Lagoon, Mexico

Table 3

Correlation matrices of metal concentrations.

Metals	Pb	As	Hg	Cd	Cr	Ni
Pb	1.00	—	—	—	—	—
As	0.86	1.00	—	—	—	—
Hg	0.52	0.59	1.00	—	—	—
Cd	−0.11	0.24	0.23	1.00	—	—
Cr	−0.19	0.01	0.02	0.74	1.00	—
Ni	0.12	0.32	0.26	0.73	0.86	1.00

; .