Table 6.3.   Median and maximum concentrations of selected key pesticides among herbicides, fungicides and insecticides detected in water samples from the two stream stations and two drain stations in the Lillebæk catchment. Tabel 6.3.   Median og maximum koncentrationer af udvalgte pesticider (herbicider, fungicider og insekticider) konstateret i vandprøver fra de to vandløbsstationer og 2 drænstationer i Lillebæk oplandet. Pesticides Approved (1999) Upstream station (culverted) Downstream station (main) Drain 2 Drain 6 Pesticide concentration (ng l^-1) Med Max Med Max Med Max     Med Max Herbicides Terbuthylazine + 76 4318 16 330 1 1 2 10 Desethylterbuthylazine M 17 522 5 51 1 1 2 16 Hydroxyterbuthylazine M 26 429 11 61 2 50 12 43 Bentazone* + 2 180 3 90 1 2 2 76 Bromoxynol + 5 42 2 19 1 1 1 1 Pendimethalin* + 13 168 13 95 nd nd 7 26 BAM M 45 209 38 84 4 4 nd nd Ioxynil* + 5 98 2 14 2 3 nd nd Ethofumesate* + 3 39 1 1 nd nd nd nd Nitrophenol M 17 744 14 884 10 125 6 25 MCPA + 23 1610 17 638 nd nd nd nd Hexazinone �€ 10 253 5 85 nd nd nd nd Atrazine �€ 5 463 4 12 nd nd 4 37 Simazine + 5 1727 4 91 nd nd nd nd Hydroxysimazine + 32 1577 16 39 8 8 nd nd Isoproturon + 61 6900 46 1830 5 122 40 154 DNOC �€ 3 271 2 294 1 22 2 8 Diuron + 27 1632 16 725 nd nd nd nd Fungicides Propiconazole + 13 251 20 53 3 4 2 2 Fenpropimorph* + 12 29 2 62 nd nd nd nd Prochloraz* + 1 1 15 16 nd nd nd nd Insecticides Dimethoat + 14 36 1 1 nd nd nd nd Pirimicarb + 6 39 6 49 nd nd nd nd Hydroxycarbofuran M nd nd nd nd 1336 1586 nd nd * Proposed model pesticides; nd = not determined