452
K. M. G. Mostofa et al.
Table 2 (contniued)
(contniued)
Fluorescent components
Components identified and sources
Fluorescence properties
References
Peak C-region
Peak A-region Peak T-region Peak T
UV -region
Peak C
Peak M
p
Peak M
Peak W
Major
Minor
EX/Em (nm)
Fulvic acid (M-like)?, water
extractable from sugar
maple leaves
Component 1
–
–
312/417
–
240/417
–
–
–
Hunt et al. (2008)
Allochthonous humic acids
(C-like, A-like, and M-like)
Suwannee River Humic Acid
(C-like), standard,
dissolved in Milli-Q waters
(n
= 4)
Component 1,
allochthonous
350/461
300/461
–
–
255/461
–
–
–
Mostofa et al. (2005a)
Humic acid (C-like), streams,
springs and thermokarsts,
CPCRW, Alaska
Component 4,
allochthonous
Peak′
–
–
–
Peak′
–
–
–
Balcarczyk et al.
(2009)
Humic acid (C-like)?, soil and
stream waters, temperate
rainforest watersheds
Allochthonous
330/460–480 –
–
–
<250/450–460 –
–
–
Fellman et al. (2009)
Humic acid (C-like)?, soil
solution samples, forest and
wetland soils, rainforest
watersheds
Allochthonous
370/440
–
–
–
<250/440
–
–
–
Fellman et al. (2008)
Humic acid (C-like)?, ground
water, fresh and Florida
Bay waters, Florida coastal
Everglades
Component 5
Peak′
–
–
–
Peak′
–
–
–
Chen et al. (2010)
Humic acid (C-like), river and
coastal waters
Component 2,
allochthonous
340, 405/>500 –
–
–
<260/>500
–
–
–
Yamashita and Jaffé
(2008)
Humic acid (C-like)?, river,
esturine and coastal marine
waters
Component 2
330/456–480 –
–
–
Peak′?
–
–
–
Fellman et al. (2010)