Elements

Phytoplankton

Total plankton

Present study (INAA), the Black Sea

The Black Sea [15]

The World Ocean [22]

The White Sea [23]

St 1

St 2

St 3

Na

2025 ± 52

715 ± 19

1095 ± 29

33000

63000

Mg

173 ± 6

546 ± 19

2370 ± 69

94000

Al

<309

951 ± 26

4421 ± 118

62

S

50.8 ± 23.5

25.4 ± 11.6

4.6 ± 3.2

8300

Cl

2650 ± 233

1520 ± 134

1520 ± 135

4700

K

1380 ± 787

732 ± 288

1810 ± 455

52000

13000

Ca

<811

349 ± 35

4379 ± 386

14000

6000

Sc

<0.03

0.33 ± 0.10

0.75 ± 0.23

0.07

0.45

Ti

15 ± 4

64 ± 10

291 ± 25

45 - 201

10

400

V

0.20 ± 0.02

1.4 ± 0.1

6.6 ± 0.3

6 - 15

3.5

3

Cr

5.16 ± 1.15

11.86 ± 1.24

15.76 ± 1.51

30 - 69

1.8

620

Mn

3.0 ± 0.2

6.0 ± 0.4

28.4 ± 1.5

3 - 63

20

80

Fe

1370 ± 198

1580 ± 173

4220 ± 295

3310 - 9670

160

2460

Ni

0.43 ± 0.02

0.28 ± 0.02

0.81 ± 0.03

0.4

0.9

Co

0.6 ± 0.1

15.7 ± 1.1

15.1 ± 1.2

1.4

3.5

Cu

91.4 ± 32.4

43.1 ± 15.7

117 ± 42

38 - 187

12

43

Zn

205 ± 20

86 ± 8

124 ± 11

39

362

As

0.11 ± 0.01

0.59 ± 0.04

1.8 ± 0.1

15

13

Se

0.26 ± 0.06

<0.13

0.04 ± 0.01

0.063

0.4

Br

59.1 ± 7.1

28.2 ± 3.4

64.7 ± 7.7

440

2000

Rb

0.20 ± 0.12

2.7 ± 0.5

7.4 ± 1.4

1.8

7

Sr

6.3 ± 0.8

6.8 ± 0.7

15.1 ± 1.4

1100

106

Zr

7.0 ± 4.7

8.0 ± 3.5

16.7 ± 6.5

0.7

3.6

Mo

0.2 ± 0.07

0.19 ± 0.09

0.24 ± 0.08

0.39

0.2

Ag

0.07 ± 0.01

0.07 ± 0.02

0.05 ± 0.013

0.22

Sn

21.3 ± 2.6

1.3 ± 0.4

1.8 ± 0.5

0.29

1.2

Sb

0.74 ± 0.03

0.28 ± 0.01

0.37 ± 0.04

0.16

1.8

I

1.2 ± 0.2

2.2 ± 0.4

22.0 ± 4.0

1020

139

Ba

33.6 ± 8.9

<9.9 ± 4.5

48.7 ± 13.4

19

28

Cs

0.012 ± 0.01

0.18 ± 0.01

0.47 ± 0.02

0.072

0.6

La

0.115 ± 0.025

0.822 ± 0.055

2.1 ± 0.12

0.14

1.18

Ce

0.6 ± 0.3

1.2 ± 0.5

3.7 ± 1.1

0.23

2.6

Nd

3.1 ± 1

0.5 ± 0.4

1.1 ± 1.3

Sm

0.6 ± 0.2

0.7 ± 0.2

0.6 ± 0.2

Gd

<0.6

4.0 ± 1.2

1.8 ± 0.6

Tb

<0.01

0.02 ± 0.01

0.06 ± 0.02

0.022

Dy

<0.14

0.11 ± 0.03

0.32 ± 0.11

Tm

0.04 ± 0.01

0.02 ± 0.01

0.16 ± 0.02

Yb

0.14 ± 0.07

0.11 ± 0.04

0.53 ± 0.12

0.13

Hf

<0.02

0.19 ± 0.06

0.34 ± 0.1

0.11

Ta

0.002 ± 0.001

0.03 ± 0.01

0.05 ± 0.02

0.06

W

0.3 ± 0.1

0.2 ± 0.1

0.3 ± 0.1

0.035

Au

0.004 ± 0.001

0.002 ± 0.001

0.002 ± 0.001

0.008

Th

<0.03

0.30 ± 0.01

0.70 ± 0.02

0.1

0.28

U

2.4 ± 0.2

1.9 ± 0.2

0.7 ± 0.1

0.8