[en] The programs aims to determine the area of largest environmental impact, taking into consideration the various installations in the Resende Industrial Complex. In the present work a mathematical model is applied based on regional data, and after the study of the use of land and waster resources in the area. The work, begin two years before the operation of the installation, has been subsequently modified by the environmental analyses obtained. The background levels of integrated dose are determined, and all the pollutents existing in the air, land and water have been classified, with the object of characterizing the region 20 Kilometers around the nuclear installation. (Author)

[en] The difficulties of organizing and establishing an Emergency Plan for unities that work or use radioactive materials in quantities that may cause emergency situation for the worker or for the public health are presented. (C.G.C.)

[en] A status report of the Brazilian Secondary Standard Dosimetry Laboratory is presented. Equipment in use as well as the results of the maintenance of the metrological properties are described. The outcome of dosimetric and health physics support to radiation therapy centres justifies the effort especially if actions are adapted to the very special situation in the country. This is underlined by the results of a survey of ⁶⁰Co machines and the checking of ²²⁶Ra needles for leakage. (author)