Table 3 Levels of lead (Pb), cadmium (Cd), arsenic (As), and nickel (Ni) in 10 brands of Nass available in the Iranian market.

From: Human health risk assessment of toxic metals in Nass smokeless tobacco in Iran

Brands

Pb

Mean ± SD (µg/g)

Cd

Mean ± SD (µg/g)

Ni

Mean ± SD (µg/g)

As

Mean ± SD (µg/g)

Brand 1a

37.00 ± 13.86

2.83 ± 0.81

25.93 ± 1.52

0.89 ± 0.08

Brand 2

33.65 ± 9.55

2.18 ± 1.17

15.80 ± 15.34

0.39 ± 0.19

Brand 3

45.27 ± 6.89

3.02 ± 0.15

22.55 ± 1.62

0.8 ± 0.01

Brand 4

39.87 ± 4.04

2.95 ± 0.31

26.63 ± 6.31

0.75 ± 0.08

Brand 5

24.15 ± 9.26

1.40 ± 0.28

11.75 ± 8.20

0.82 ± 0.17

Brand 6

38.33 ± 4.55

3.25 ± 0.18

25.75 ± 1.52

0.75 ± 0.09

Brand 7

50.77 ± 7.69

3.03 ± 0.20

23.43 ± 4.10

0.77 ± 0.49

Brand 8

32.70 ± 1.97

2.43 ± 0.48

27.32 ± 14.15

0.89 ± 0.34

Brand 9

30.13 ± 4.12

2.63 ± 0.24

22.18 ± 3.08

0.45 ± 0.28

Brand 10

50.00 ± 0.71

2.98 ± 0.04

33.75 ± 15.41

0.55 ± 0.4

  1. aThe number of samples analyzed for each brand is three. (Total = 30)
  2. SD = Standard deviation.