“…An evaluation of 112 individual results for herbicide transport in subsurface drainages found that a median discharge of 0.03% (range: 0->1 O/ o) of the input level can be expected in drained areas (Fischer, 1996). As much as 45% of the loads calculated in eight American, four Canadian and four European studies ( Bengtson and Southwick, 1993;Bengtson et al, 1990;Buhler et al, 1993;Gaynor et al, 1992;Hurle and Lung, 1992;Jayachandran et al, 1994;Kladivko et al, 1991;Kreugerand Brink, 1988;Rhode et al, 1979;Rhode et al, 1980;Rhode et al, 1981;Snegarofl, 1979;Snegarofl, 1981;Traub-Eberhard et al, 1995;v. Stryk and Bolton, 1977;Yo0 et al, 1981) could be attributed to atrazine; in countries which forbid the use of atrazine, it can be expected that herbicide contamination originating from subsurface drainage will be lower.…”