Table 4.

Concentrations of metals (mg kg⁻¹ ww) in cockle from different areas of the world.

Location	Species of cockle	Cd	Pb	Zn	Hg	Cu	Cr	Reference
Seine Estuary, Europe	Cerastoderma edule (Linnaeus, 1758)	0.07-0.40	<0.02-0.72	16.2-31.0	—	0.84-4.58	—	[8]
Moroccan Atlantic lagoons∗	Cerastoderma edule	<0.001-0.82	1.67-7.77	7.9-31.1	—	1.01-7.75	—	[31]
Kuala Juru, Kuala Karau, and Jeram, Malaysia∗	Anadara granosa	0.27-1.95	—	18.93-41.91	—	1.11-1.52	—	[27]
Penang, Malaysia	Anadara granosa	0.79-0.93	0.11-0.14	0.17-0.29	1.21-1.50	0.15-23	0.15-0.19	[30]
Eastern region of Java Sea	Anadara granosa	0.2-0.4	<0.04	—	<0.01-0.05	—	—	[13]
South Island of New Zealand	Austrovenus stutchburyi (Wood, 1828)	0.2-0.45	—	45-65	—	6-10	—	[29]
Ria de Aveiro, Portugal	Cerastoderma edule	0.06-0.16	1-5	35-55	—	2-5	0.3-0.9	[32]
Asajaya, Sarawak, Malaysia∗	Anadara granosa	0.28-0.45	0.55-0.90	—	—	—	—	[38]
Newcastle, New South Wales, Australia∗	Anadara trapezia (Deshayes, 1839)	0.2-3.5	0.1-4.5	16.5-37.1	—	0.8-3.5	—	[28]
Along East Java Coast	Anadara granosa	0.11-0.82	0.10-0.54	10.22-19.04	0.02-1.47	1.79-4.76	1.64-3.79	Present study

^∗Data in dry weights were transformed to wet weight by dividing by a factor 4.856.