Table 2.

The mean values of some major soil properties for four soil samples used in the experiments.

Sample	Land Uses	Latitude	Longitude	pH	OC	CEC	Clay Content	Silt Content	Sand Content	Astot
					(%)	(cmol kg-1)	(%)			(µg/g)
R	River bed	20.34	106.39	6.92	1.03	13.2	5.5	49.3	45.2	31.0
C	Mangrove forest Soil	20.25	106.57	6.98	0.70	11.0	18.1	47.8	34.1	27.4
T	Paddy soil	20.27	106.45	6.88	1.50	11.4	25.3	58.1	16.6	16.8
S	Aquaculture farm	20.25	106.55	6.52	1.20	16.0	26.2	44.4	29.4	17.5

OC: Organic carbon content; CEC: Cation exchange capacity. As_tot: Total concentration of arsenic.