[The hygienic validation of the permissible loads of synthetic anionic surface-active substances in the soil during irrigation].

Permissible concentrations of anionic surfactants for the soil of irrigated agricultural fields are experimentally grounded: these are as follows: 12 and 17 kg/ha (5 and 7 mg/kg) for sod-podzolic soils and black earths, respectively. By calculation, approximate permissible concentrations were also determined for other soils: 7 kg/ha (3 mg/kg) for sandy soils, 20 kg/ha (8 mg/kg) for loamy soils, and 25 kg/ha (10 mg/kg) for clay soils.