In medical X ray departments, industrial facilities and nuclear reactors, local radiation was measured with film dosimeters in more than 1700 different places. These were fixed over a period of about 30 days in different spots in the rooms controlled. The measurements obtained are classified into different groups. The advantage of film dosimeters compared with usual measurements of the dose rates is the fact that they give an average of the real dose over a long period of time at low cost. The results obtained are of interest for radioprotection technique.