331
Photoinduced and Microbial Degradation
Samples/Sources
of water
Source of
light/Natural
level
H
2 O
2 (nM) ROOHs
(nM)
LMW
compounds
(nM h
−1 )
DIC (nM h
−1 )CO
2 (nM
or nM
h
−1 )
CO (nM or
nM h
−1 )
Hydrocarbons (nM)
Ammonium (nM or
nM h
−1 )
COS
(ng L
−1 )
PO
4
3−
(μg L
−1 )
DOC
(μM C)
DON
(μM)
References
Intracoastal Waterway, caostal
waters (30°N)
Xe lamp
–
–
–
–
–
110
–
–
–
–
267
–
Valentine and
Zepp (1993)
Live Oak, Gulf
coast of Florida
(30°N)
Xe lamp
–
–
–
–
–
90
–
–
–
–
642
–
Valentine and
Zepp (1993)
Sargasso Sea
(photic zone)
Natural
–
–
–
–
–
5.8
–
–
–
–
–
–
Jones (1991)
Sargasso Sea
(aphotic zone)
Natural
–
–
–
–
–
0.1
–
–
–
–
–
–
Jones (1991)
Sapelo Island
Marsh, GA
(31°N)
Natural
–
–
–
40–1280
–
3.3–4.9
–
–
–
–
500
–
Miller and Zepp
(1995)
Gulf of Mexico
(28°N)
Natural
–
–
–
120–400
–
15.8–
24.8
–
–
–
–
170
–
Miller and Zepp
(1995)
Seawater
+ humic
substances
(SH)
Artificial
sunlight
–
–
–
2300
–
147
–
–
–
–
695
–
Miller and Moran
(1997)
Seawater
+ the
control
addition (SC)
Artificial
sunlight
–
–
–
1600
–
104
–
–
–
–
515
–
Miller and Moran
(1997)
Artificial seawater
+ the
control
addition (AC)
Artificial
sunlight
–
–
–
300
–
40
–
–
–
–
241
–
Miller and Moran
(1997)
Table 3 (contniued)
(continued)