Dissolution of Metals from Biosolid-Treated Soils by Organic Acid Mixtures

Table 11

Amounts of metals that were extractable from the biosolid-treated Romona soil (1,080 Mg ha⁻¹) by 0.1 M organic acid mixture.

Element	Rapid release (mg kg^−1)	Slow release (mg kg^−1)	Total release (mg kg^−1)
Cd	1.67	0.86	2.53
Cr	1.46	3.74	5.20
Cu	20.3	13.7	34.0
Ni	16.1	8.60	24.7
Pb	0.77	1.73	2.50
Zn	205	80.0	285