Batch adsorption method (solid-solution ratio: 2:50; pH: 5.5; contact time: 20 h; 25˚C)	Soil (single metal systems)	Water	117.4 - 348.6	50 - 1000 µmol/L	(Li et al., 2012)
	Soil (binary metal systems)	Water	109.8 - 206.5	50 - 1000 µmol/L
Batch experiment (pH: 7.99 - 8.35)	Surface water sediments	Water	28.92		(Liao et al., 2021)
	Pore water sediments	Water	21.56
Batch experiment (pH: 7.22 - 8.56)	sediment	Water	24,000 - 140,000		(Liu et al., 2019)
diffusive gradient in thin-film (DGT) technique	Plated soils (10 g/kg sewage sludge)	Water	168.7 - 291.9		(Mohseni et al., 2020)
Plated soils (30 g/kg sewage sludge)			416.1 - 1271.1
Batch equilibrium adsorption (solid-solution ratio: 2.5:25; acidic pH (4.44), alkaline pH (7.77); contact time: 4 h)	Soils	Water	11.13 - 1673.72	10 - 800 µg/l	(Rezaei et al., 2021)
	Soils	Water	7.82 - 376.05	1 - 1000 mg/l
Batch adsorption experiment (solid-solution ratio: 3:30; pH (5.1 to 7.9); contact time: 24 h; 20˚C)	Soils		5.8 - 4885.5	28.1 - 2224.8 mg/L	(Shaheen et al., 2015)
	Soils		4.3 - 7334.8	28.1 - 2224.8 mg/L
Review report	Soils (mono metal sorption system)		7.3 - 1699.6		(Shaheen et al., 2013)
	Soils in competitive sorption system)		3.1 - 1588.3
Batch desorption method (solid-solution ratio: 3:30; alkaline (pH 7.87), acidic (pH 4.95); contact time: 24 h; 20˚C)	Amended Alfisol1	Water	86.5 - 79.9	50 - 300 mg/L	(Shaheen et al., 2018)
	Amended Alfisol2		372.3 - 123
	Amended Alfisol3		1476.4 - 323.7
	Amended Entisol1		4.8 - 17.3
	Amended Entisol2		41.9 - 44.3
	Amended Entisol3		32.7 - 158.8
Batch equilibrium adsorption experiment (solid-solution ratio: 2:20; pH: 6.5; contact time: 24 h)	Topsoil	Deionized water	7 - 14,339		(Soares et al., 2021)
Batch equilibrium adsorption experiment (solid-solution ratio: 1:20; pH: 2 - 9; contact time: 24 h)	control soil	Water	1.7 - 1412.5		(Tahervand & Jalali, 2017)