[Calculation of maximum allowable concentration of N-nitrosodimethylamine and N-nitrosodiethylamine based on chronic experiments in mice].

Maximum allowable 24-hour human intakes of NDMA and NDEA, calculated with the use of a log-normal model, a model of logit-transformations and methods of confidence intervals and probability estimations, are 0.15 micrograms/kg and 0.03 micrograms/kg respectively. Maximum allowable concentrations for NDMA and NDEA in water are 5 micrograms/l and 1 microgram/l respectively.