[Retracted] Chemical Speciation and Potential Mobility of Heavy Metals in the Soil of Former Tin Mining Catchment

Table 2

Chemical and physical characteristics of soil.

Location	Sand %	Silt %	Clay %	Textural class	pH	ECs (dSm^−1)^b	CaCO3	OM^c%	CEC (cmol(+)/kg)^d
S1	60±14	29±9	11±3	Sand	6.1±0.02	18±8	5.7±0.8	8.39±0.7	17.81±4
S2	65±13	26±8	9±4	Sand	6.3±0.01	17±7	18.4±0.6	9.91±0.4	19.43±3
S3	67±11	21±9	12±3	Sand	6.7±0.01	11±5	6.9±1.2	7.98±0.5	13.76±3
S4	59±13	30±7	11±2	Sand	5.1±0.01	12±4	12.1±2.4	5.13±0.3	26.98±3
S5	68±13	20±8	12±3	Sand	4.9±0.01	10±5	2.5±0.9	4.78±0.4	24.42±3

± Standard deviation, 𝑛=5; ^belectrolytic conductivity; ^corganic matter; ^dcation exchange capacity.