Gigiena i sanitariia
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Gigiena i sanitariia · Mar 2003
[Supply of iron and status of immunologic reactivity in older schoolchildren at various times of the year].
The content of iron in foods consumed by schoolchildren in winter was found to be much lower than the recommended one. In summer dietary iron consumption proved to be twice less than that in winter and 3 times less than the physiological allowance for this age. The indices of cellular and humoral immunity during a school year changed in diametrically opposite direction: increases in the count of T and B lymphocytes in winter and, especially, spring months were attended by a concurrent and significant reduction in the content of immunoglobulins G, M, and A. There was a significant rise in the indices of phagocytosis in winter as compared to autumn and their drastic reduction in spring as compared to winter.
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Gigiena i sanitariia · Jan 2003
[Assessment of human health risk factors in the city of Nizhnekamsk].
Nizhnekamsk is marked not only high by levels of ambient air pollution, but also by the deteriorated qualitative composition of portable water. The present paper gives the results of assessment of the mutagenic activity of tap water. A test system of biological evaluation of portable water is proposed.
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Gigiena i sanitariia · Jan 2003
[Specific features of sexual maturation in urban and rural adolescent girls].
Eight hundred and fifteen adolescent girls aged 14 to 17 years who live in Orenburg and rural areas have been examined. The age-specific and regional features of their physical and sexual maturation were studied. Assessment of the findings suggests that there are differences in the processes of physical and sexual development between urban and rural adolescent girls. Early identification of the factors that influence the development of senior schoolgirls will allow one to implement preventive measures to preserve reproductive health in the girls.
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Gigiena i sanitariia · Jan 2003
[Conceptual bases of environmental radiation monitoring of an industrial city].
The mechanisms of radionuclide behavior in different environmental objects have been identified and studied. The radiation characteristics of controlled parameters have been shown to be in the range of mean long-term values that are characteristic for the technogenic background of a capital megapolis, they are not greater than those established by the monitoring standards and those required by regulating legislative documents. ⋯ It has been shown that, to ensure radiological monitoring under urban conditions, it is most reasonable to have an irregular network considering the concentration of radiation-risk enterprises, as well as urban architectural designs and division of areas by taking into account regional, geomorphological, and radiological factors. Basic trends in improving radioecological monitoring are given.