[Role of children physical development in radiation hygienic monitoring system]. 
The article deals with longstanding work on studies of physical development parameters among preschoolers aged 4-7 and dwelling on territories near to objects with potential radiation danger, also on radiation-connected anxiety in parents of the examined children.  The stated objects when exploited in normal mode were proved to cause no influence on the children's development.  Social and economical factors appeared to play leading role in developmental parameters formation.  Increased level of radiation-connected anxiety in parents of the children examined appeared to be out of proportion to real favorable radiation background of the territories examined.