Evaluación experimental de la distribución espacial de la concentración de radón-222, utilizando detectores LR 115-tipo 2

Radon-222 is a recognized lung carcinogen to which human exposure should be limited. The main emitters of radon-222 in the environment are found in soil and building materials, because they contain minute amounts of uranium and radium, which radioactively decay into radon- 222 gas. In this research work, the spatial distribution of radon-222 concentration was experimentally determined in an office where an array of 15 measurement points could be placed. At each measurement point, two detectors were placed at a height from the floor of: 40, 100 and 160 cm. The detectors were placed for a period of 168 days. The average values of radon-222 concentration found in this work range from 0 to 45:60 Bq/m³. It was determined that the distribution of radon-222 concentration in an enclosure is not homogeneous; There are higher concentration levels in areas of the room where there is little air circulation and almost zero concentration levels in areas where there is greater air circulation. From this we conclude that evaluating the concentration of radon-222 in a room, considering a single measurement point, the result obtained is not representative of the place, since its values can change drastically if one or another measurement point located in the same room were chosen. In addition, this range from 0 to 45.60 Bq/m³ does not exceed the strictest tolerance level of radon-222 concentration of 150 Bq/m³, which we have adopted in this work.