Table 1 Location in EEM-space of major peaks in DOM fluorescence.

From: A call for refining the role of humic-like substances in the oceanic iron cycle

Component

Peak name80

Ex/Em

Peak number81,82

Source81,82

Peak83,84

Tyrosine-like, protein-like

B

275/305

8

autochthonous

γ

tryptophan-like, protein-like

T

275/340

7

autochthonous

σ

unknown

N

280/370

   

UVC humic-like

A

260/400–460

4

fulvic acid, autochthonous, terrestrial

α′

UVC humic-like

A

260/400–460

1

humic, terrestrial, autochthonous

α′

UVC humic-like

A

260/400–460

3

humic, terrestrial, autochthonous

α′

UVA marine humic-like

M

290–310/370–410

6

anthropogenic wastewater, agriculture

β

UVA humic-like

C

320–360/420–460

5

terrestrial, anthropogenic, agriculture

α

Pigment-like

P

398/660

   

UVA humic-like

 

250(385)/504

2

fulvic acid, terrestrial, autochthonous

 
  1. From Coble (2007).