Pesticides in streams and subsurface drainage water within two arable catchments in Denmark: Pesticide application, concentration, transport and fate
Table 8.1.
Number of hours when water samples were taken and the percentage of time sampled
at both stream stations in the Lillebæk catchment, and the mean daily discharge
during each quarter at the downstream station (Fredsskovvej) in the Lillebæk
catchment.
Tabel 8.1.
Antallet af timer i de enkelte kvartalerne hvor der er udtaget vandprøver og beregnet
transport af pesticider. Endvidere er tidsrummet dækket med prøvetagninger vist
relativt sammen med den gennemsnitlige vandføring ved den nedstrøms station i
Lillebæk oplandet.
Quarters
2nd
3rd
4th
1999
1st
2nd
3rd
4th
2000
Total hours sampled at the
upstream station
(Topenden)
122.0
81.5
130.5
334.0
34.0
877.0
82.0
77.0
1070.0
Percentage of time
sampled
5.6%
3.7%
5.9%
5.1%
1.6%
40.2%
3.7%
3.5%
12.2%
Total hours sampled at the
downstream station
(Fredskovvej)
57.5
28.0
40.0
125.5
76.0
825.0
92.0
56.0
1049.0
Percentage of time
sampled
2.6%
1.3%
1.8%
1.9%
3.5%
37.8%
4.2%
2.5%
12.0%
Mean discharge at the
downstream station
(Fredskovvej)
31 l/s
16 l/s
57 l/s
-
83 l/s
26 l/s
7 l/s
24 l/s
-
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