Environmental Engineering Reference
In-Depth Information
Table 7 (continued)
Light source, filter
Temp, reaction medium
Surfactant or formulation
[DT 50 °]
DT 50 s a
No.
Pesticide/structure
Reference
2,4-D (Me ester)
Sunlight (midsummer), none
NA, distilled water
10 mM HDTMA Br,
50mM SDS
[62 d]
500, 21 d
Hautala (1978)
27
Haloxyfop
N
GE-RSM Sunlamp, none
19°C, distilled water
0.15% Tween 20, 1%
soybean oil conc.
[~31 hr]
6, 3 hr
Harrison and Wax
(1985)
CH 3
CF 3
O
O
H
COOH
Cl
1
DDT
Hg lamp at 253.7 nm, none
[5.8 min]
Chu (1999)
4.9, 2.6,
CCl 3
NA, distilled water
Cl
H
Cl
4.3 min
15 mM Brij-35, Brij-52,
Brij-72 b
3
Parathion
Sunlight (midsummer),
none, NA, distilled water
10 mM HDTMA Br,
50mM SDS
[9.2 d]
2.9, 1.3d
Hautala (1978)
S
C 2 H 5 O
C 2 H 5 O
P
O
NO 2
7
Coumaphos
125W Hg lamp, Pyrex
30°C, phosphate buffer
at pH 7.4
25 mM SDS
[1 hr]
0.89 hr
Moreno et al.
(1995)
CH 3
Cl
S
C 2 H 5 O
C 2 H 5 O
P
O
O
O
28
Bentazone
GE-RSM Sunlamp, none
19°C, distilled water
0.15% Tween 20, 1%
soybean oil conc.
[~27 hr]
38, 6 hr
Harrison and Wax
(1985)
O
N
S
O
N
O
8
Carbaryl
Sunlight (midsummer), none
[11 d]
Hautala (1978)
1.2, 9.6 d
N
NA, distilled water
O
C
O
CH 3
10 mM HDTMA Br,
50mM SDS
22
Chlorimuron
Sunlight (Aug), borosilicate
glass
38±3°C, HPLC grade
water at pH 6.3
0.1% Tween 80, Triton
X-100
[5.8 d]
3.7, 2.7 d
Thomas and
Harrison
(1990)
Cl
O
N
H NC
O
N
S
N
O
COOH
OCH 3
23
Metsulfuron
Sunlight (Aug), borosilicate
glass
38±3°C, HPLC grade
water at pH 6.3
0.1% Tween 80, Triton
X-100
[15.7 d]
2.9, 1.5 d
Thomas and
Harrison
(1990)
CH 3
O
N
H NC
O
N
S
N
N
O
COOH
OCH 3
(continued)
 
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