Table 1 Frequency percentage, mean concentration, standard deviation (± SD) of trace metals and OCPs in the fillet of Sphoeroides spp. from NAV, Mexico.

Cd

1.16

1.45

0

3 × 10^−5ai–0.002^a

Cu

41.86

5.06

21.06

0.03–0.12^b

Fe

100

80.52

73.54

0.7–0.8^c

Mn

38.37

6.13

3.86

1^ab

Ni

32.56

8.06

3.53

0.0005^a–0.14^b

Pb

83.72

18.42

16.53

0.0003^ai–0.004^a

Zn

100

189.55

1062.73

0.03–0.12^ab

Aldrin

3.49

0.80

0.93

10^d

p, p'‒DDD

10.47

0.11

0.07

1250^e

p, p'‒DDE

26.74

0.12

0.19

1250^e

p, p'‒DDT

2.33

ND

ND

1250^e

Dieldrin

15.12

0.13

0.23

10^d–100^h

Endosulfan I

32.56

0.25

0.38

50

Endosulfan II

22.09

0.21

0.16

50

Endosulfan sulfate

11.63

4.93

9.85

50

Endrin

16.28

2.22

4.94

10^d–50^h

Endrin aldehyde

33.72

0.05

0.09

10^d

Endrin ketone

13.95

4.93

6.96

50^h

Heptachlor

1.16

0.17

0

10^d–20^e

Heptachlor epoxide

3.49

0.07

2.02 × 10^–6

10^d

Methoxychlor

18.6

6.14

22.8

10^f

α‒HCH

12.79

24.7

32.3

10–250^e

β‒HCH

6.98

3.52

7.14

10–250^e

γ‒HCH

1.16

1.71

5–250^e

δ‒HCH

10.47

5.33

13.2

250^e

α‒Chlordane

3.49

0.02

0

2–50^g

γ‒Chlordane

60.47

22.94

72.5

NE