Background: Almost all workers in the Black Sand Project at Rashid and Abou-Khashaba sites of NMA (Nuclear Materials Authority) are obligatorily exposed to ionizing radiations during their routine work. The most apparent harmful effects in Rasheed employees were reflected easily on pulmonary function tests which may occur due to increase registered dust radio activities than the accepted level for air concentration. Objectives: This study was done mainly to evaluate the biological effects of ionizing radiations on lung and pulmonary functions of workers in the Black Sand Project at Rashid and Abou-Khashaba sites of NMA in the year 2012 and to start follow up of these workers Measurements: This research was done on 30 male workers aging 25 - 56 years to measure pulmonary function tests. Certain radiological measurements were also performed to assess the levels of exposure to radiations Results: Out of the 30 members; regarding the radiological measurements all levels measured were within the reference range accepted internationally, except radioactive dust levels were elevated mildly above the reference range accepted internationally this results in deterioration of pulmonary function of some workers. Conclusions: Generally, workers of the Black Sand Project at Rashid and Abou-Khashaba sites were receiving a good radiological protection protocol. Radioactive dust levels were elevated mildly above the reference range accepted internationally this result in pulmonary function disorders in some workers.