As in other industrial sectors closely linked to scientific and technical development, from the 1920s on, ionizing radiation was included in the same preventive philosophy and risk control measures that were being incorporated into the chemical industry, based on the belief that exposure to harmful substances below certain concentrations was harmless .
Al igual que en otros sectores industriales íntimamente ligados al desarrollo científico-técnico, desde los años 1920 se extendió a las radiaciones ionizantes la misma filosofía preventiva y medios de control del riesgo que venían incorporándose en la industria química.