Questioner. a resident of Tokyo
Q1, How much Bq/m2 for Cs-137 is the threshold of soil contamination for which the internal exposure harms the human’s health and reduces his/her
quality of life?
On our experience there is no dependence - see the diagramm. It happens in Belarus because of local risk factors - see the pdf file.
Q2, How much was the soil contamination in terms of Cs-137 in Мінск after
the Chernobyl disaster?
In 1986 on official data it was less than 3,7 kBq/m2.
Source: Chernobyl accident-Aftermath and their overcome. NATIONAL REPORT Edited by:academician Konoplya EF and Professor Rolewicz MINSK 1998
Alexey Nesterenko The Institute of Radiation Safety "BELRAD"