Relationship between Potential Trace Elements Contamination in Sediment and Macrofauna in the Upper Gulf of Thailand

Table 1

Concentrations of heavy metals in the sediment of the upper Gulf of Thailand.

Element (mg/kg)	Point of samples collected
	SH	CH	SP	PB	SS
Al	55358 ± 802	5479 ± 59.1	12337 ± 770	2169 ± 131	2866 ± 2713
As	0.0578 ± 0.0096^a	0.0603 ± 0.0439^a	0.0591 ± 0.0075^a	0.0869 ± 0.0062^ab	0.0421 ± 0.0111^ac
Pb	7.268 ± 0.1810^a	3.884 ± 0.1264^b	15.83 ± 1.228^c	1.260 ± 0.1413^d	1.192 ± 0.1112^d
Cd	1.631 ± 0.1042^a	1.602 ± 0.0253^ac	1.809 ± 0.0586^b	1.542 ± 0.0711^a	1.538 ± 0.0240^bc
Mn	495 ± 5.346^a	219 ± 10.3^b	1263 ± 6.468^c	9.959 ± 0.1521^d	1.963 ± 0.1827^d
Ni	10.81 ± 0.2651^a	4.476 ± 0.0378^b	12.71 ± 0.0793^c	1.780 ± 0.0682^b	1.622 ± 0.0882^b

Note. ^abcd This mean difference is significant at the -value 0.05 level (LSD); Al = aluminum; A = arsenic; Pb = lead; Cd = cadmium; Mn = manganese; Ni = nickle.