Table 4 Trace metal contents (in µg g-1) in soils and brinjal fruits collected from farmers′ fields of Jamalpur district, Bangladesh along with physicochemical properties of soils, and daily intake and recommended dietary allowances of nutritionally important elements.

From: Human health implications of trace metal contamination in topsoils and brinjal fruits harvested from a famous brinjal-producing area in Bangladesh

Parameters

Soil

Brinjal fruit

Daily intake of metal (µg day-1)

RDAa (mg day-1 person-1)

UTILa (mg day-1 person-1)

Min

Max

Mean b

Median

Min

Max

Mean b

Median

pH

5.94

6.96

6.41

6.30

–

–

–

–

–

–

–

EC (µS cm-1)

72.6

276.0

131.0

112.1

–

–

–

–

–

–

–

OM (%)

0.23

2.01

1.27

1.32

–

–

–

–

–

–

–

Pb

9.10

23.66

16.93 (60)

16.32

0.204

0.729

0.431 (80)

0.393

3.14

ND

0.2242

Ni

14.05

25.08

20.84 (60)

21.25

0.031

0.212

0.115 (80)

0.108

0.84

ND

1.0043

Cd

 < 0.01

0.67

0.32 (33)

0.53

 < 0.010

0.061

0.018 (32)

0.043

0.13

ND

0.0642

Cr

45.76

75.28

62.63 (60)

63.77

 < 0.010

 < 0.010

 < 0.010 (0)

 < 0.010

–

M = 0.035, F = 0.02543

0.0642

Cu

21.67

48.79

31.81 (60)

28.42

1.819

2.668

2.189 (80)

2.130

15.94

M = 0.90, F = 0.9043

10.0043

Fe

27,126

36,304

31,882 (60)

31,169

3.267

5.910

4.673 (80)

4.833

34.02

M = 8.0, F = 18.043

45.0043

Mn

406.6

604.0

471.6 (60)

460.6

 < 0.010

0.866

0.231 (68)

0.172

1.68

M = 2.3, F = 1.843

11.0043

Zn

67.49

105.40

79.44 (60)

80.82

2.160

3.846

2.685 (80)

2.550

19.55

M = 11.0, F = 8.043

40.0043

  1. aLife stage group 19–50 years; RDA  recommended dietary allowances, UTIL  upper tolerable daily intake level, ND  not determined, M  males, F  females. bValue in parenthesis indicates the number of the samples that were above the limit of detection (LoD).
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