[The effective dose equivalent: clarification and comments on the new dosage concept].

The concept of the effective dose, based on stochastic radiation effects (genetic damage and cancer), is explained and discussed. Reasons are given why this concept should consider the cancerogenic action of radiation only and not, in addition, the hereditary radiation effects. This view does not contradict our knowledge that the gonads have to be protected especially carefully from the mutagenic action of ionising radiation.