Pesticides in streams and subsurface drainage water within two arable catchments in Denmark: Pesticide application, concentration, transport and fate

Table 8.4.   Application and calculated minimum loss of five selected key pesticides during each quarter of the study period, including the application in autumn 1998. Tabel 8.4.   Udsprøjtede mængder og beregnet minimum tab af fem udvalgte pesticider for hvert kvartal I perioden efterår 1998 til 3 kvartal 2000.   Quarters/ pesticides 3rd and 4th 1998 1st 1999 2nd 1999 3rd 1999 4th 1999 1st 2000 2nd 2000 3rd 2000 Grammes active ingreedients Isoproturon Applied 1550 0 0 0 18500 0 0 0 Loss   nd nd 0.005 0.007 12.392 0.332 2.289 0.033 Terbuthylazine 34 1 2 3 4 1 2 3 Applied 0 0 2400 0 0 0 3500 0 Loss nd nd 3.524 0.411 0.854 0.123 5.075 0.217 Diuron 34 1 2 3 4 1 2 3 Applied 0 0 960 0 0 0 3840 0 Loss nd nd 1.000 0.037 0.008 0.005 2.472 0.036 Pendimethalin 34 1 2 3 4 1 2 3 Applied 4343 0 28 540 36470 0 120 0 Loss nd nd 0.011 0.039 2.018 0.021 0.072 0.004 MCPA 34 1 2 3 4 1 2 3 Applied 0 0 2205 0 0 0 15373 0 Loss nd nd 0.430 0.711 0.003 0 1.335 0.074 nd = not determined