Table 1 Comparison of metals concentrations in S.cucullata from different parts of the world

Australia

0.14-4.07

0-0.46

Peerzada et al.,1990

0.29-10.63

2.59-9.38

Peerzada et al.,1992

0.17-9.1

Peerzada et al.,1993

Hongkong

2.07- 4.05

Blackmore 2001

India

1.82 ± 0.4

0.308 ± 0.07

Kumar et al., 1990

(1.25-3.19)

(0.20-2.02)

UAE

1.53

0.0625

0.007

de Mora et al., 2004

China

2.43 ±1.37

0.120 ± 0.044

0.027 ±0.011

Fang et al., 2004

(1.27-4.86)

(0.051-0.168)

(0.013-0.044)

Oman

0.7-8.77

0.015-0.55

-

Fowler et al., 1993

Oman

1.55-4.825

0.067-0.95

-

Fowler 1988

Oman

2.24-5.47

0.096-0.168

0.012-0.038

de Mora et al., 2004

(3.55)

(0.127)

(0.028)

Al-sawadi

4.975

0.168

0.036

Ras AlHamra

2.457

0.137

0.038

Ras Al-yei

5.475

0.096

0.012

Hilf

2.65

0.111

0.038

Mirbat

2.24

0.125

0.019

Oman

3.31 ± 1.14

0.0119 ± 0.031

0.017 ± 0.008

This study

(1.58-6.2)

(ND-0.129)

(0.008-049)

Mirbat

2.64 ± 1.19

0.009 ± 0.01

0.015 ± 0.006

Hadbeen

3.48 ± 0.80

0.009 ± 0.023

0.013 ± 0.006

Sadah

3.80 ± 1.14

0.023 ± 0.048

0.022 ± 0.010