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

Table 11.3.   Median and maximum concentrations of 12 pesticides at the three stream stations in the two catchments. Tabel 11.3.   Median og maximum koncentrationer af 12 pesticider ved de tre vandløbsstationer i de to oplande. Pesticide Upstream Lillebæk Downstream Lillebæk Odderbæk    Upstream Lillebæk Downstream Lillebæk Odderbæk Median concentration (ng/l) Maximum concentration (ng/l) Herbicides BAM (metabolite) 44 37 4 127 66 20 Bentazone 2 3 3 180 89 2910 Ethofumesate 3 1 6 39 1 6 Ioxynil 5 2 4 98 14 4 Isoproturon 42 49 57 771 1830 129 Pendimethalin 14 11 24 168 95 195 Terbuthylazine 79 15 4 4318 330 136 Fungicides Fenpropimorph 12 2 42 29 62 42 Prochloraz 1 15 19 1 16 19 Propiconazole 13 20 7 251 53 44 Insecticides Dimethoate 11 1 2 36 1 2 Pirimicarb 6 8 8 39 49 14