Pb-Contaminated Soil from Quintero-Ventanas, Chile: Remediation Using Sarcocornia neei

Table 6

Paired samples test. Pb before and after remediation.

Paired samples T-test
—	—	—	Statistic	Df
Pb	Pb!	Student’s t	6.41	5.00	0.001
—	—	Wilcoxon W	21.0	—	0.031