Metal Fractionation and Leaching in Soils from a Gold Mining Area in the Equatorial Rainforest Zone

Table 3

Percentage of metals leached under different rainwater conditions.

Metal	Soil A using NRW	Soil A using ARW	Soil B using NRW	Soil B using ARW
	M (%)	M (%)	M (%)	M (%)
Cd	14.7	38.9	1.9	7.2
Cr	0.4	0.2	0.2	0.5
Cu	0.8	1.4	1.5	0.5
Fe	0.04	0.01	0.1	0.2
Mn	6.3	11.6	1.3	6.6
Zn	5	4.8	0.2	0.2

NRW: natural rainwater; ARW: artificial rainwater; M: percentage of metals leached.