Applied and Environmental Soil Science

Research Article

Geochemical and Geophysical Study in a Degraded Area Used for Disposal of Sludge from a Water Treatment Plant

Table 4

Geoaccumulation indexes obtained in soil samples from the WTS monitoring well.


Depth	Class
(m)	0	1	2	3	4	5	6

0, 15	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Pb_av, Cu_av, Zn, Be, Co	Mg_ex, K_ex, K, Na	CEC	Mn, Zn_av		MO, Ca_ex, Na_ex	Mn_av, P_av

3	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Pb_av, Cu_av, MO, Mg_ex, Na_ex, K_ex, CEC, Na, K, Zn_av, P_av, Zn	Be, Co	Mn_av, Mn	Ca_ex

6	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Pb_av, Cu_av, MO, Ca_ex, Mg_ex, Na_ex, K_ex, CEC, Na, K, Mn_av, Zn_av, P_av, Zn, Be	Mn, Co

9	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Pb_av, Cu_av, Ca_ex, Mg_ex, Na_ex, K_ex, CEC, Na, K, Mn_av, Zn_av	P_av, Zn, Be, Co	Mn

12	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Pb_av, Cu_av, Ca_ex, Mg_ex, Na_ex, K_ex, CEC, Na, K, Mn_av, Zn_av	P_av, Zn, Be, Co	Mn

15	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Cu_avMO, Ca_ex, Mg_ex, Na_ex, K_ex, CEC, Na, K, Mn_av, Zn_av	P_av, Pb_av, Zn, Be, Co		Mn

18	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Pb_av, Cu_av, MO, Mg_ex, Na_ex, K_ex, CEC, Na, K, Mn_av, Zn_av, Zn, Be	Ca_ex, P_av, Co	Mn

21	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Pb_av, Cu_av, Ca_ex, Mg_ex, Na_ex, K_ex, CEC, Na, K, Mn_av, Zn_av, Zn	P_av, Be, Co	Mn

24	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Pb_av, Cu_av, Ca_ex, Mg_ex, Na_ex, K_ex, CEC, Na, K, Mn_av, Zn_av, Zn	P_av, Be, Co	Mn

27	SiO₂, Al_ex, Al₂O₃, TiO₂, CaO, MgO, Fe₂O₃, Sr, Cu, Y, Ba, Pb, Pb_av, Cu_av, Ca_ex, Mg_ex, Na_ex, K_ex, CEC, Na, K, Mn_av, Zn, Be, Co	Zn_av, P_av	Mn