Table 6.

Average enrichment factor (EF) and geoaccumulation index (Igeo) of trace metals in the three cores.

Sample ID	EF	Igeo
Core 1
Cd	0.54	−1.39
Cr	0.49	−1.37
Cu	3.03	0.59
Fe	N/A	−0.29
Mn	0.45	−1.6
Ni	0.03	−2.3
Pb	0.52	−1.48
Zn	0.91	−0.87
Core 2
Cd	0.53	−1.39
Cr	0.42	−1.76
Cu	1.94	0.45
Fe	N/A	−0.38
Mn	0.42	−1.97
Ni	0.24	−2.55
Pb	0.55	−1.43
Zn	0.66	−1.12
Core 3
Cd	0.89	−0.95
Cr	0.6	−1.5
Cu	3.99	1.05
Fe	N/A	−0.17
Mn	0.65	−1.39
Ni	0.33	−2.36
Pb	0.75	−1.19
Zn	0.74	−0.81