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Table 1 Zavarzin water content.

From: Molecular analysis of the benthos microbial community in Zavarzin thermal spring (Uzon Caldera, Kamchatka, Russia)

Elemental composition

Units

Cw

Elemental composition

Units

Cw

Temperature

°C

58

Ga

ppb

0.13

pH

pH

6.62

Ge

ppb

0.7

Eh

mV

54

As

ppb

22

DOC

ppm

1.0

Se

ppb

0.38

Ca2+

ppm

18.0

Br

ppb

47

Mg2+

ppm

5.6

Rb

ppb

9.5

Na+

ppm

35

Sr

ppb

100

K+

ppm

4.9

Y

ppb

0.0054

HCO3-

ppm

180

Zr

ppb

0.011

SO42-

ppm

60

Nb

ppb

< 300E-6

H2S

ppm

3.6

Mo

ppb

0.022

Cl-

ppm

13.5

Ag

ppb

0.04

Si

ppm

85

Cd

ppb

0.003

TDS, calculated

ppm

410

Sn

ppb

0.015

Li

ppb

47

Sb

ppb

0.028

B

ppb

980

Te

ppb

0.006

Be

ppb

0.015

I

ppb

6

Al

ppb

33

Cs

ppb

2.4

P

ppb

160

Ba

ppb

98

Zn

ppb

85

Ta

ppb

< 200E-6

Ti

ppb

0.75

W

ppb

0.083

V

ppb

0.084

Re

ppb

2.00E-04

Cr

ppb

0.11

Hg

ppb

0.8

Mn

ppb

610

Tl

ppb

0.0011

Fe

ppb

16

Pb

ppb

0.13

Co

ppb

0.054

Bi

ppb

0.0015

Ni

ppb

0.17

Th

ppb

< 500E-6

Cu

ppb

0.4

U

ppb

0.0015