sentences:  The accident contaminated the scrap metal reprocessing plant, plus two other steel mills where it sent its waste for decontamination.According to independent laboratories, the ashes produced by the Acerinox factory had between 640 and 1420 becquerels per gram (the Euratom norm is 10 Bq/g), high enough to be a threat to the public.On the radiological consequences of this event, six people were exposed to slight levels of caesium-137 contamination.