Table 2: Average obtained value of cations (mg/kg) for RAS samples.

Sample	Cd	Cr	Cu	Pb	Mo	Ni	Zn
RSL.IE	73	124	205	73	11	54	169
SIE	ND	158	144	11	19	101	277
RIE	4	136	99	39	8	34	2800
Overall average	38	139	149	41	13	63	1082
STD	23.1	23.6	28.1	17.5	5.1	14.4	182.4