Sample area

Fish type

Cd

Pb

Cr

Al

References

Ten governorates along Egypt

Oreochromis niloticus

0.26

0.48

0.32

0.229

Our study

Bayelsa state-Nigeria

Tilapia nicolitica

0.95

3.88

-

-

Godwin et al., 2011 [65]

Bangi, Selangor, Malaysia

Oreochromis niloticus

0.02

0.14

5.9

9

Taweel et al., 2011 [66]

Egypt

Oreochromis niloticus

6.05

7.6

-

-

Kaoud and El-Dahshan, 2010 [67]

Malasya

Oreochromis niloticus

-

0.09

-

-

Low et al., 2010 [68]

Madivala lakes of Bangalore

Tilapia species

1.76

2.67

1.3

2

Begum et al. 2009 [69]

Lake Manzala Egypt

Oreochromis niloticus

1.33

5.11

-

-

Abdel-Satar and Geneid Y, 2009 [70]

Kolleru Lake, India

Different fish species

-

-

0.93

-

Adhikari et al., 2009 [71]

Manchar Lake, Pakistan

O. mossambicus

-

-

0.46

-

Arain et al., 2008 [72]

Sabal canal, Monufia Gov, Egypt

O. nilotica

3.4

31.95

-

-

Authman, 2008 [62]

Northern Jordan Valley, Jordan

Oreochromis aureus

0.02

-

-

-

Al-Weher , 2008 [1]

Qena, Egypt

Tilapia species

1.81

0.62

-

-

Labib et al., 2008 [73]

Iskenderun Bay, Turkey

Saurida undosquamis, Sparus aurata

Türkmen et al., 2005 [74]

and Mullus barbatus

-

-

-

2.71

Georgia and Alabama (USA)

Mackerel, tuna, salmon, sardines and herrings (canned)

-

-

0.75

-

Ikem and Egiebor, 2005 [75]

Fayoum Governorate, Egypt

Tilapia species

-

-

1.12

-

Mansour and Sidky, 2002 [9]

Selangor, Peminsular, Malysia

O. nilotica

0.03

-

0.19

-

Taweel et al., 2012 [76]

Noethwest China

Cyprinid fish species

0.11

0.17

0.01

6.30

Qin et al., 2015 [77]

^*

0.1

0.1

-

NA

EQSQC, 1993 [30]

^*

0.05

0.5

-

NA

WHO, 1993 [31]

^*

-

-

0.1

NA

Brazilian standard, 2001 [59]

PTWI^**

7

25

-

-

FAO/WHO, 2004 [64]

PTWI 70^**

490

1750

-

-

PTDI^**

70

250

-

-

EWI^**

7.94

15.84

-

-

EDI^**

1.13

2.26

-

-