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Environmental Systems Research

Table 2 Estimated daily intake per meal (EDIm) (µg/g daily), target hazard quotient (THQ), and maximum allowable fish consumption rate in meals/week (CRmw) in adults

From: Influence of mining related activities on levels of mercury in water, sediment and fish from the Ankobra and Tano River basins in South Western Ghana

Sampling sites

Fish species

T-Hg (μg/g) Mean ± SD

EDIm

THQ

CRmw

Ankobra basin

Asawinso

Tilapia zillii

0.22 ± 0.05

0.79

7.86

1

Tilapia guineensis

0.03 ± 0.01

0.11

1.07

7

Hepsetus Odoe

0.23 ± 0.03

0.82

8.21

1

Hemichromis fasciatus

0.28 ± 0.09

1.00

10.00

1

Schilbe intermedius

0.29 ± 0.04

1.04

10.36

1

Heterobranchus spp.

0.08 ± 0.02

0.29

2.86

3

Chrysichthys nigrodigitatus

0.10 ± 0.01

0.36

3.57

2

Beppoh Ehyireso

Tilapia zillii

0.04 ± 0.02

0.14

1.43

5

Hemichromis fasciatus

0.41 ± 0.03

1.46

14.64

1

Tilapia guineensis

0.18 ± 0.09

0.64

6.43

1

Heterobranchus spp

0.20 ± 0.07

0.71

7.14

1

Sarotherodon galilaeus

0.07 ± 0.02

0.25

2.50

3

Barbus macrops

0.10 ± 0.01

0.36

3.57

2

Schilbe mystus

0.12 ± 0.01

0.43

4.29

2

Hepsetus Odoe

0.07 ± 0.03

0.25

2.50

3

Heman prestea

Hepsetus Odoe

0.44 ± 0.07

1.57

15.71

0

Tilapia guineensis

0.04 ± 0.06

0.14

1.43

5

Barbus macrops

0.08 ± 0.01

0.29

2.86

3

Sarotherodon galilaeus

0.11 ± 0.02

0.39

3.93

2

Chromidotilopia guntheri

0.15 ± 0.05

0.54

5.36

1

Heterobranchus spp

0.07 ± 0.06

0.25

2.50

3

Schilbe mystus

0.21 ± 0.04

0.75

7.50

1

Bonsaso

Schilbe mystus

0.04 ± 0.01

0.14

1.43

5

Brycinus nurse

0.13 ± 0.03

0.46

4.64

2

Hepsetus Odoe

0.20 ± 0.04

0.71

7.14

1

Barbus macrops

0.17 ± 0.01

0.61

6.07

1

Heterobranchus spp

0.08 ± 0.02

0.29

2.86

3

Dominase

Schilbe mystus

0.09 ± 0.03

0.32

3.21

2

Barbus macrops

0.13 ± 0.02

0.46

4.64

2

Liza falcipinnis

0.08 ± 0.01

0.29

2.86

3

Chrysichthys nigrodigitatus

0.22 ± 0.09

0.79

7.86

1

Liza grandisquamis

0.10 ± 0.06

0.36

3.57

2

Tano basin

 

Tano odumase

Rai Senegalensis

0.29 ± 0.06

1.04

10.36

1

Labeo parvus

0.10 ± 0.05

0.36

3.57

2

Sarotherodon Galilaeus

0.89 ± 0.05

3.18

31.79

0

Barbus macrops

0.06 ± 0.01

0.21

2.14

4

Hemichromis fasciatus

0.07 ± 0.02

0.25

2.50

3

Brycinus nurse

0.28 ± 0.05

1.00

10.00

1

Schilbe mystus

0.14 ± 0.06

0.50

5.00

2

Heterobranchus spp

0.30 ± 0.06

1.07

10.71

1

Chrysichthys nigrodigitatus

0.36 ± 0.02

1.29

12.86

1

Tilapia zillii

0.29 ± 0.01

1.04

10.36

1

Hepsetus Odoe

0.08 ± 0.06

0.29

2.86

3

Jomoro

Chrysichthys nigrodigitatus

0.28 ± 0.06

1.00

10.00

1

Rai senegalensis

0.41 ± 0.03

1.46

14.64

1

Hepsetus Odoe

0.20 ± 0.01

0.71

7.14

1

Marcusenius senegalensis

0.20 ± 0.02

0.71

7.14

1

Schilbe mystus

0.21 ± 0.03

0.75

7.50

1

Mormyrus rume

0.14 ± 0.01

0.50

5.00

2

Barbus macrops

0.11 ± 0.01

0.39

3.93

2

Hemichromis fasciatus

0.14 ± 0.04

0.50

5.00

2

Labeo parvus

0.17 ± 0.03

0.61

6.07

1

Brycinus nurse

0.15 ± 0.07

0.54

5.36

1

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