Table 2 IBC of SRHS as a function of salinity based on laboratory analysis. Every IBC value of SRHS at different salinities was measured more than four times, and its average (AVG) and standard deviation (SD) are displayed.

From: Capacity of humic substances to complex with iron at different salinities in the Yangtze River estuary and East China Sea

Salinity

5

12.5

20

30

35

40

UVSW

FA

AVG

25.2

23.4

20.6

16.9

16.8

16.8

16.3

SD

1.4

1.9

2.1

0.4

1.6

1.3

0.4

HA

AVG

41.4

38.3

35.7

33.5

31.5

31.5

32.1

SD

1.6

2.1

1.5

1.5

1.6

1.6

1.7

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