. 2016 Jun 24;47(4):853–862. doi: 10.1016/j.bjm.2016.06.001

Table 2.

Chemical characteristics of the soil in areas contaminated with heavy metals after the use of rehabilitation systems [S1 (Ec-R and Ec-IR) and S2 (EcB-R and EcB-IR)], in non-rehabilitated contaminated area (NR), and in non-contaminated areas [Cerrado (C) and Pasture (P)].

Characteristics	Ec-R	Ec-IR	EcB-R	EcB-IR	NR	C	P
pH (H₂O)	6.5	6.9	6.3	6.3	4.8	5.5	5.7
P (mg dm⁻³)^a	5.8	11.2	8.8	2.7	6.3	0.7	1.0
K (mg dm⁻³)^a	52.6	56.8	80.8	72.7	40.8	123.4	80.4
Ca⁺² (cmol_c dm⁻³)^b	1.6	1.6	2.2	2.5	81.3	0.4	0.7
Mg⁺² (cmol_c dm⁻³)^b	1.7	0.7	1.0	1.2	22.0	0.6	0.3
Al⁺³ (cmol_c dm⁻³)^b	0.0	0.0	0.1	0.1	1.4	1.6	0.2
H+Al (cmol_c dm⁻³)^c	1.5	1.3	2.0	2.0	14.4	4.9	2.7
Corg (g kg⁻¹)	3.8	3.4	5.3	4.8	2.4	3.6	5.6
Mn (mg dm⁻³)^a	46.8	56.6	55.8	83.5	1446	24.4	30.9
Zn total (mg kg⁻¹)^a	3805	8673	574	581	47,910	23	17
Zn soluble (mg kg⁻¹)^d	2866	6680	258	332	13,695	1.8	3.6
Cu total (mg kg⁻¹)^a	189	511	10	23	738	18	14
Cu soluble (mg kg⁻¹)^d	139	456	7.2	8	343	1.4	2.6
Pb total (mg kg⁻¹)^a	77	139	32	50	6488	15	7
Pb soluble (mg kg⁻¹)^d	35	77.3	15.6	16.6	32	<2.0	<2.0
Cd total (mg kg⁻¹)^a	19	37	6	10	1207	0.06	0.03
Cd soluble (mg kg⁻¹)^d	18.9	37	4.8	5.8	565	<0.02	<0.02

USEPA 3051.

KCl 1 mol L⁻¹.

SMP.

Mehlich-1.