Pesticides in streams and subsurface drainage water within two arable catchments in Denmark: Pesticide application, concentration, transport and fate
Table 11.4.
Loss and discharge weighted concentration of 3 selected pesticides during one storm
event in each quarter of the year for the upstream station in the Lillebæk catchment.
The loss is calculated based on sampling during a period of 24 hour during each
storm event.
Tabel 11.4.
Tab og vandføringsvægtet koncentration af 3 pesticider gennem en
afstrømningshændelse i hvert kvartal for den opstrøms vandløbsmålestation i
Lillebæk. Tabet af pesticider er beregnet på baggrund af flere puljede enkeltprøver
udtaget over en 24 timers periode.
Lillebæk upstream
Quarter
of year
Runoff
Diuron
Terbuthy-
lazine
Isoproturo
n
Diuron Terbuthy-
lazine
Isoproturon
(mm)
Loss (mg)
Discharge weighted
concentration (ng/l)
17-18th February 2000
1
3.1
5.2
91.1
205
0.7
12.7
28.6
12-13th May 1999
2
0.7
981
2543
4.5
592
1534
2.7
19 August 1999
3
0.6
26.7
193
1.3
20
145
1.0
11-12th December
1999
4
8.1
0
775
11944
nd
42
651
|