Photoinduced and Microbial Degradation of Dissolved Organic Matter in Natural Waters - Photobiogeochemistry of Organic Matter - page 284

Table 1 ( continued)

Type of samples/Locations Filtration

size/type
( μ m)

Irradiation
time
(h, or, day)

Solar
intensity
(MJm

DOC
Before
irradiation

Changes in DOC Changes in DOC References

Photoirradiation Microbial Photoirradiation Microbial

− 2 )

( μ M C) ( μ M C) %

Lake Biwa, 35°N:
surface water (2.5 m)

<5 kDa 12 (irradiated) 137 73 − 5 na − 11 na Mostofa KMG

et al.
(unpub-
lished)
( 2004 )

Lake Biwa, 35°N:
surface water (2.5 m)

<5 kDa 12 (dark) na 73 na 0 na 0 Mostofa KMG

et al.
(unpub-
lished)
( 2004 )

Lake Biwa, 35°N:
surface water (70 m)

<5 kDa 12 (irradiated) 137 63 − 10 na − 16 na Mostofa KMG

et al.
(unpub-
lished)
( 2004 )

2 a 3 a

Lake Biwa, 35°N:
surface water (70 m)

<5 kDa 12 (dark) na 63 na na Mostofa KMG

et al.
(unpub-
lished)
( 2004 )

Lake Lacawac, 41°N:
surface water

0.20 7 (irradiated) nd 400 − 80 NMD − 20 NMD Morris and

Hargreaves
( 1997 )

(continued)