Spatial Variability of Metals in Surface Water and Sediment in the Langat River and Geochemical Factors That Influence Their Water-Sediment Interactions

Table 5

Descriptive statistic of heavy metal concentrations (𝜇g/L) in water samples at Langat River (𝑛=90).

	Minimum	Maximum	Range	Mean	SD	CV (%)	MOH (2004)
As	0.08	24.71	24.63	8.54	9.15	107.03	10.00
Cd	<0.01	0.53	0.53	0.11	0.12	103.79	3.00
Co	0.06	6.22	6.17	0.64	1.14	180.15	—
Cr	0.32	4.67	4.35	1.13	0.91	80.03	50.00
Ni	0.80	24.72	23.92	7.29	6.75	92.56	20.00
Pb	<0.005	6.99	6.99	1.07	1.64	153.25	10.00

SD: standard deviation, CV: coefficient of variance.