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

Table 9.4.   Application and calculated minimum loss of five selected key pesticides in each quarter of the study period including the application in autumn 1998. Tabel 9.4.   Udsprøjtede mængder og beregnet minimum tab af fem udvalgte pesticider for hvert   kvartal i perioden efterår 1998 til 3 kvartal 2000.   Quarter/ Pesticides 3rd and 4th 1998 1st 1999 2nd 1999 3rd 1999 4th 1999 1st 2000 2nd 2000 3rd 2000 Grammes active ingreedients Isoproturon Applied 31,928 0 8250 0 92,795 0 0 32,310 Loss   nd 1.479 2.135 0.116 6.791 2.944 0.817 0.399 Terbuthylazine Applied 0 0 41186 0 0 0 598838 0 Loss nd 0 0.126 0.580 0.051 0 0.186 0.320 Bentazone Applied 0 0 42942 0 0 0 61799 0 Loss nd 0.049 66.965 4.613 0.274 0.184 3.146 0.096 Pendimethalin Applied 87916 0 47412 0 105568 0 44990 38772 Loss nd 0 1.908 0.116 2.494 0.054 0.639 0.052 MCPA Applied 0 0 15267 0 0 0 10073 0 Loss nd 0 0 0.193 0 0 0.147 0.029 nd = not determined