Spatial Distribution of Selected Heavy Metals in Surface Sediments of the EEZ of the East Coast of Peninsular Malaysia

Table 8

The comparison of heavy metal concentration in this study with other studies.

Number	Area	Al	Fe	Cu	Zn	Mn	Co	Reference
()	EEZ of the east coast of Peninsular Malaysia	4.23 ± 1.0	7.56 ± 0.49	17.48 ± 2.14	63.01 ± 15.47	273.42 ± 57.92	9.30 ± 1.5	This study
()	EEZ of the east coast of Peninsular Malaysia (premonsoon)	3.04 ± 1.4	2.03 ± 0.45	16.0 ± 7.2	76.3 ± 8.3	n.a.	n.a.	[2]
()	EEZ of the east coast of Peninsular Malaysia (postmonsoon)	4.57 ± 1.34	1.36 ± 0.38	15.1 ± 2.7	56.1 ± 17.1	269 ± 80	n.a.	[2]
()	Strait of Johor	8.25 ± 2.49	3.04 ± 0.67	30.7 ± 22.5	132.5 ± 52.6	265 ± 152	5.8 ± 1.5	[52]
()	Strait of Malacca	n.a.	2.15 ± 0.59	17.46 ± 8.08	63.68 ± 21.93	421 ± 209	n.a.	[53]
()	Terengganu River	n.a.	n.a.	n.a.	n.a.	517.9 ± 161.8	15.1 ± 7.4	[10]
()	Kemaman River	n.a.	n.a.	48.8	n.a.	597.8	16.0	[4]
()	Pahang River	n.a	n.a	18.65 ± 7.65	n.a.	n.a.	n.a.	[12]
()	Upper crust, North China	n.a.	n.a.	25	61	n.a.	18	[54]
()	Upper continental crust	7.7	3.1	14.3	52	527	11.6	[55]
()	Shale average	8.4	4.7	45	95	850	19	[1]

The concentration of Al and Fe in percentage (%).
The other elements are in μgg⁻¹.
n.a.: not analyzed.