Table 2 Basic statistical parameters of potentially toxic metal(loid) content, bioconcentration factor, and translocation factor in various organs of the tea plant.

From: Distribution characteristics of potentially toxic metal(loid)s in the soil and in tea plant (Camellia sinensis)

  

As

Cd

Cr

Cu

Ni

Pb

Zn

Contents in tea plant (n = 35)

Mean (mg/kg)

0.230

0.173

0.65

16.01

12.58

2.041

21.75

Median (mg/kg)

0.108

0.135

0.39

4.45

2.59

1.395

13.30

Stdev (mg/kg)

0.30

0.12

0.80

36.22

29.61

1.88

21.32

CV%

0.77

1.50

0.81

0.44

0.42

1.09

1.02

Minium (mg/kg)

0.018

0.036

0.05

1.03

0.57

0.061

4.6

Maxium (mg/kg)

1.420

0.457

4.17

154.00

114.00

8.980

101.0

Bioconcentration factor (n = 14)

Mean

0.0064

2.1048

0.0090

0.3037

0.2511

0.0356

0.0702

Median

0.0023

1.5754

0.0046

0.0548

0.0316

0.0255

0.0611

Stdev

0.01

1.26

0.01

0.59

0.51

0.03

0.06

CV%

0.84

1.66

0.94

0.51

0.50

1.29

1.26

Minimum

0.0009

0.8492

0.0016

0.0235

0.0077

0.0097

0.0251

Maximum

0.0298

5.1061

0.0418

1.9966

1.5468

0.1180

0.2520

Translocation factor (n = 14)

Mean

0.4519

0.8363

0.3460

0.2210

0.2116

0.3869

2.5671

Median

0.4338

0.6156

0.2761

0.1987

0.1774

0.3203

2.2773

Stdev

0.41

0.71

0.28

0.13

0.13

0.30

1.71

CV%

1.11

1.18

1.23

1.67

1.57

1.30

1.50

Minimum

0.0490

0.2189

0.0681

0.0565

0.0754

0.0226

0.5229

Maximum

1.6196

2.4692

0.9131

0.4688

0.5189

1.0669

6.2830

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