[Hygienic problems in the location of modern wind electric power stations in their design].

Hygienic aspects of the placement of wind power plants (WPP) in connection with the intensive development of wind power and the lack of systematic information on their effects of the environment and living conditions of the population are becoming more actual. In the article there are considered results of the sanitary-epidemiological expertise of the construction project of three modern large wind farm (the South - Ukrainian, Tiligulskaya and Pokrovskaya) with a total capacity offrom 180 to 500 MW of wind farms with 2.3 MW power generators of wind turbines. It is shown that in the process of wind farm construction a contamination of the environment (air soil, ground water) may take place due to the working of construction equipment and vehicle, excavation, welding and other operations, in the exploitation of wind farm there can be created elevated levels of acoustic and electromagnetic pollution in the neighborhood and emergencies with the destruction of WPP in adverse weather conditions. Based on the calculations presented in the projects, and the analysis of data on the impact offoreign windfarm on the environment it was found that the limiting factor of the influence is the wind farm noise pollution in the audio frequency range that extends beyond the territory of wind fields, electromagnetic radiation is recorded within the hygienic standards and below only in the immediate vicinity of its sources (electrical equipment and power lines). For considered modern wind farms there was grounded sanitary protective zone with dimensions of 700 mfrom the outermost wind turbines by the noise and it was recommended compliance distance of200 mfrom the wind turbine to limit any activity and people staying in times of possible emergency situations in adverse weather conditions.

[The location of wind-mill electric generating plants: hygienic aspects].

The hygienic aspects of the location of wind-mill electric generating plants become more pressing due to the intensive development of wind-power engineering. Possible risk factors from wind-mill electric generating plants that can influence the environment and the population are considered. A 400-m control area is recommended on the basis of the made calculations of an acoustic and electromagnetic pollution area, an exposure area during emergency situations, as well the field measuring data on noise from wind-mill electric generating plants with a capacity of 20 MW, by applying 100-kW wind-mill electric generating units. Further studies are proposed to improve the differentiated sizes of control areas for wind-mill electric generating plants with wind-mill electric generating units of varying capacity.

[Changes in the immune status under the influence of high-frequency electromagnetic radiation]. / Izmenenie immunnogo statusa pod vliianiem élektromagnitnykh izluchenivysokoi chastoty.

Experiments on white rats showed that electromagnetic radiation (24 MHz, 400 W/m and 20 W/m) caused leucopenia, reduction of E and EAC rosette formation of lymphocytes, functional activity of neutrophils within 2 months of radiation. No immunosuppressive effect was seen with 24 MHz, 100 W/m radiation, while 400 W/m inhibited E-rosette formation in the presence of tissue antigens.

[Programming apparatus support of an electrophysiological experiment in hygiene research to set standards for nonionizing radiations]. / Programmno-apparatnoe obespechenie élektrofifiologicheskogo éksperimenta v gigienicheskikh issledovaniiakh po normirovaniiu neioniziruiushchikh izluchenii.

The authors developed and introduced into practice program-apparatus complex ensuring automation of electrophysiological experiments. This allowed to use neurophysiological methods as an express-analysis with the purpose of substantiating critically limited levels of electromagnetic radiation.

[The biological activity of a decameter-range electromagnetic field with a frequency of 24 MHz]. / O biologicheskoi aktivnosti élektromagnitnogo polia dekametrovogo diapazona chastotoi 24 MGts.

A study of behavioural reactions indicates that the effect of 24 MHz frequencies of the electromagnetic field results in changes of the ratio of excitatory and inhibitory processes in the nervous system of white rats with prevalence of inhibitory processes. By the 90-th day of effect of the above factor all changes returned to the initial level. This indicates stability of the adaptative reactions of the integrative level of the nervous system to the acting factor.

[Sanitary-protective and limitation areas for antennae of the decameter range]. / Sanitarno-zashchitnye zony i zony ogranicheniia zastroiki antenn dekametrovogo diapazona.

A detailed overview of a transmitting antenna of the decameter range is provided. It is shown that the field near such antennas has rather a complex structure. A comparative analysis of the existing design techniques for the determination of electromagnetic field intensity has been undertaken. On the basis of numerical design techniques the procedure of automated prediction of the electromagnetic situation is proposed. The basic components of the procedure are set forth. As illustrated by some antennas the dependence of sanitary and limitation zones on the wavelength, radiated power and the type of soil has been studied.