Indoor air radon concentrations in all kindergartens and Play schools
in Lublin, Poland, were determined in grab samples by using alpha scin
tillation cells. In addition, some public buildings and homes in Lubli
n and several places in Eastern Poland were surveyed for radon. For ki
ndergartens and play schools, the geometric mean was 23 Bq m-3 with a
standard deviation of 1.4 Bq m-3, while in public buildings and homes,
these values were 26 and 1.6 Bq m-3, respectively.