Influence of chemical and mineralogical soil properties on the adsorption of sulfamethoxazole and diclofenac in Mediterranean soils

Table 4 Adsorption parameters for Diclofenac and Sulfamethoxazole onto the three selected soils

Soil	Linear model		Freundlich model				Langmuir model					K_OC (L kg⁻¹)
	r²	K_d (L kg⁻¹)	r²	MAE	K_F (L kg⁻¹)	1/n	r²	MAE	b (L mg⁻¹)	a (mg kg⁻¹)	K (L kg⁻¹)
Diclofenac
Sibari	0.9966	3.7	0.9954	2.19	4.4668	0.93	0.9884	8.38	0.0423	118.6	5.0174	225.6
Noci	0.9821	1.7	0.9809	2.61	1.8197	0.95	0.9842	4.06	0.0174	110.0	1.9168	160.4
Altamura	0.9953	8.4	0.9983	2.52	9.1201	0.95	0.9976	7.26	0.0321	308.3	9.8861	178.7
Sulfamethoxazole
Sibari	0.9072	0.21	0.9600	1.76	0.4328	0.84	0.8886	1.09	0.0478	9.3633	0.4477	12.8
Noci	0.7187	0.36	0.9014	0.32	0.0281	1.64	0.8436	2.62	0.0651	0.3444	0.02242	34.0
Altamura	0.9755	0.64	0.9792	1.17	0.2188	1.32	0.9281	7.84	0.0500	3.8636	0.1932	13.4