Immunity and health condition investigation results for participants of nuclear weapon tests at the Seminpalatinsk and North test ranges as well as for the population living at located nearby regions are presented. Fairly significant duration of health malfunctions after nuclear tests is revealed, the role of immunologic mechanisms in this malfunctions is shown.

The paper presents approaches to the safety justification of the gas condensate and brine long-term storage in the underground reservoirs formed by the nuclear explosion technology. Gas condensate and brine are the intermediate level liquid radioactive waste containing isotopes: 3Н, 137Cs and 90Sr, in traces - 239Pu, 235U, 241Am.

Safety of the gas condensate and brine long-term storage in the underground reservoirs is assessed on the base of the multi-barrier principle implementation, used during radioactive waste disposal. It is shown that the gas condensate and brine long-term storage in the sealed underground reservoirs formed by nuclear explosion technologies in salt domes does not lead to the surface radioactive contamination and population exposure.

The article analyses dynamics of morbidity rate of oligophrenia and CNS organic diseases for the population born in the Bryansk region after the Chernobyl accident. Two regions were taken for the detailed analysis: contaminated - Novozybkov and not contaminated - Zhukov. 518 patient medical records were analyzed in the contaminated region and 359 ones in not contaminated. It is revealed that morbidity indicators for the radioactive contaminated territories are significantly higher than for the not contaminated territories.

Analysis of equipment provisions for X-ray diagnostics in the Russian Federation for the period from 2000 to 2006 is being presented. The article records the lag of Russia behind the countries with high level of public health service development both for total amount of X-ray diagnostic equipment and for the rate of their amount growth. The lag of national X-ray diagnostic equipment is especially high for the equipment for special X-ray examinations. Half of all X-ray equipment in Russia has a life time of 10 and more years. Equipment for the standard X-ray examinations prevails in its structure in contrast to the countries with high level of public health service. More than one third of equipment for fluoroscopy is not equipped with amplifiers of X-ray image. The share of digital X-ray diagnostic equipment for standard X-ray examinations is 5%, while in the economically developed countries mainly digital technologies are applied. Significant differences in the quantitative and qualitative aspects of current state of X-ray diagnostic equipment in the various Federal districts and administrative territories of the Russian Federation are observed.

The report contains data on specific activity values of natural and artificial radionuclides in the water of underground and surface sources in 19 areas of Russian Federation and data on population internal exposure doses from drinking water consumption in these areas.

The article provides a comparative assessment of exposure levels of the staff from selected occupational groups in Russia and the respective doses reported for the personnel in some foreign countries. The comparison of the average doses was performed at on a country level and with respect of the job category: nurse, radiographer, industrial radiographer. The analysis involved some relevant data according to the Integrated State System for Doses Control and Registration, the United Nations Scientific Committee on the Effects of Atomic Radiation, the National Dose Registry of Canada, the Federal Office for Radiation Protection of Germany, the Norwegian Radiation Protection Authority. The system for monitoring and registration of individual doses, and the reasons for higher levels of occupational exposure in Russia are discussed. Some recommendations on improving registration of occupational radiation exposure to individuals in forms of Federal Statistical Observation are given.

The radionuclide 89Sr give considerable contribution in the composition of fission products, which get in environment due to an accident of nuclear reactor or due to conducting of peaceful nuclear explosion. By radiation characteristics this radionuclide essentially differs from 90Sr. Due to its shorter half period it faster leaves the objects of environment and therefore represents less radiation hazard for man than 90Sr. These radionuclides belong to the same element of chemical system and therefore are difficulty separated with the use of chemical methods. The work offers an approach, which joins chemical and radioactive methods.

The present work is devoted to the analysis of appropriateness's of accumulation and estimation of migration of 137Cs and 90Sr in the forest foodstuffs sampled in the Sought-Eastern areas of the Bryansk region. Comparing of the results of estimation of the investigated forest foodstuffs contamination degree with hygienic requirements allows finding out the possibility of their safe consumption by population living in the territory under investigation.

The article presents issues of radon accumulation in the air of dwellings and public buildings in the Rostov region. It is shown that radon concentration in the air of commissioned buildings does not depend on the season when the investigation was carried out, while equivalent equilibrium volumetric activity of radon in the operating buildings is approximately twice higher during the cold period, then during the hot period of a year.

The work presents issues of the radiation protection provision for the management of radioactive waste produced by the radioimmunological analysis with the use of 125I marker, calculated and experimental data on radioactive waste specific activities are analyzed.