[Several current hygienic problems in residential and recreational environments--results of studies during the 7th five-year-plan].
Dwelling and rest - two of the basic elements of life activity, draw now-a-days the attention of state, political, economic and scientific bodies and organizations in our country. The care of man in our society is expressed in such a formation and protection of the environment that could guarantee adequate conditions for dwelling and rest at present and in the future. The hygienic problems, associated with that type activity, include planning and construction of new settlement systems studies on the deleterious and favourable physical factors (noise, vibration, electromagnetic fields, natural solar radiation), mode of construction, equipment and exploitation of residential and administrative buildings. They are the object of the present paper, which presents, in a summarized way, the experience of the research work at the laboratory "Physical factors of the environment, planning and construction in settlements", at the RIHOD, carried out during the seventh 5-year period. Some results are presented that have an essential share in the new approach to the hygienic standardization and regulation of the qualities of the environment for dwelling and rest.