Environmental Engineering Reference
In-Depth Information
Table 3
The luorescence index (F
index
) of allochthonous fulvic and humic acids in contrast to autochthonous fulvic acid (C-like) of algal origin and their
various sources identiied using PARAFAC modelling on EEM spectra in water samples
DOM sources
Fluorescence index (
F
index
)
References
HIX
**
F
Peak A/Peak C
F
250:330/440-450
f
450/500
Fulvic acid of forest origin
Standard Suwannee River Fulvic Acid
(n
=
3; 1-2 mg L
Mostofa et al. (
2005a
)
a
1.80
1.47
1.33
23
−
1
)
Mostofa et al. (
2005a
)
a
Standard Suwannee River Fulvic Acid
(n
=
4; 1-5 mg L
1.56
1.29
1.40
25
−
1
)
Mostofa et al. (
2005a
)
a
Standard Suwannee River Fulvic Acid
(n
=
5; 0.5-5 mg L
1.55
1.18
1.30
−
59
−
1
)
Mostofa et al. (
2005a
)
a
Standard Suwannee River Humic Acid
(n
=
3; 1-5 mg L
1.91
2.08
1.28
14
−
1
)
Mostofa et al. (
2005a
)
a
Standard Suwannee River Humic Acid
(n
=
4; 1-5 mg L
1.95
2.12
1.30
12
−
1
)
Mostofa et al. (
2005b
)
a
Fulvic acid, upstream: Nishi-Mataya and
Higashi-Mataya (n
=
6)
1.69-1.78
1.60-1.78
1.55-1.65
12, 35
Fulvic acid-like, upper branch waters (Z),
Yellow River, China (n
=
7)
1.30
1.36
2.02
25
Mostofa KMG et al., (unpublished data)
Fulvic acid, upper main channel waters (G),
Yellow River, China (n
=
18)
1.87
3.13
3.22
8
Mostofa KMG et al., (unpublished data)
Mostofa et al. (
2005b
)
a
Fulvic acid, downstream: Amano, Echi and
Ane Rivers (n
=
6)
1.65-1.78
1.62-1.72
1.58-1.70
4, 12, 17
Photochemical effects on standards and river waters
Irradiated standard Suwannee River
Fulvic Acid (n
=
2; 10 h and 20 h)
1.73
1.94
1.91
5
Mostofa KMG et al., (unpublished data)
Irradiated standard Suwannee River Humic
Acid (10 h)
1.94
2.00
1.33
7
Mostofa KMG et al., (unpublished data)
Mostofa et al. (
2007a
)
a
Irradiated upstream river waters, Kago
upstream, Lake Biwa watershed, Japan
1.8
1.55
1.30
2
