Downstream Distribution and Postdepositional Mobilization of Cadmium in Alluvial Soils

Table 3

Cumulative release of Cd in the serial batch leaching tests with water and with a 0.085 mol/l CaCl₂ solution. Average value of 3 replicates. The pH of the solutions after extraction is also given. Data from reference [38].

		Water		CaCl2 solution (0.085 mol/l)
Sample	L/S (l/kg)	pH	Cd (μg/l)	pH	Cd (μg/l)
L1	20	6.3	<0.1	5.8	99
	40	6.5	<0.2	6.0	172
	60	6.6	0.4	5.9	230
	80	6.6	0.5	6.2	278
	100	6.7	0.5	5.9	321
L5	20	6.4	3	5.8	438
	40	6.5	5	5.9	760
	60	6.8	8	5.7	993
	80	6.8	10	5.9	1183
	100	6.7	10	5.9	1374

L/S=liquid/solid ratio.