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Dnipropetrovsk, United Kingdom

Duka Y.D.,Dnipropetrovsk State Medical Academy | Ilchenko S.I.,Dnipropetrovsk State Medical Academy | Kharytonov M.M.,Dnipropetrovsk State Agrarian University | Vasylyeva T.L.,Texas Tech University Health Sciences Center
Emerging Health Threats Journal

Introduction: Chronic manganese (Mn) exposure is a health hazard associated with the mining and processing of Mn ores. Children living in an area with increased environmental exposure to Mn may have symptoms of chronic toxicity that are different from adults who experience occupational exposure. The aim of the study was to compare health outcomes in a pediatric population living near open Mn mines with a group of children from a reference area and then to develop and implement preventive/rehabilitation measures to protect the children in the mining region. Methods: After environmental assessment, a group of 683 children living in a Mn-rich region of Ukraine were screened by clinical evaluation, detection of sIgA (37 children), micronucleus analysis (56 children), and hair Mn content (166 children). Results: Impaired growth and rickets-like skeletal deformities were observed in 33% of the children. This was a significantly higher percentage than in children in the reference region (15%). The children from the Mn-mining region also had increased salivary levels of immunoglobulin A (104.4±14.2 mcg/ml vs. 49.7± 6.1 mcg/ml) among the controls (p<0.05), increased serum alpha 1 proteinase inhibitor levels (4.93±0.21 g/l compared with 2.91±0.22 g/l for controls; p<0.001) and greater numbers of micronuclei in the mucous cells of the oral cavity (0.070±0.008 vs. 0.012±0.009, p<0.001). Conclusions: These findings indicate the deleterious health consequences of living in a Mn-mining area. Medical rehabilitation programs were conducted and produced positive results, but further validation of their effectiveness is required. The study provided background information to formulate evidence-based decisions about public health in a region of high Mn exposure. © 2011 Ykateryna D. Duka et al. Source

Kharytonov M.M.,Dnipropetrovsk State Agrarian University | Kroik A.A.,Dnipropetrovsk National University
NATO Science for Peace and Security Series C: Environmental Security

The chemical reactions of hydrolysis, oxidation, ion exchange, and carbonization, which accompany the weathering of rock from coal mines, are presented. The environmental safety of the wastes that are exposed during storage on the surface is defined by the processes of leaching and pollutant transfer. Data were obtained related to the contents and changes of the water-soluble form of heavy metals in the rock heaps after weathering on the surface. It was established that, unlike rock freshly taken to the surface that is rated as class IV hazardous material, weathered rock is rated as class II and III hazardous material. The rock heaps in the Western Donbas coal mining region become environmentally hazardous during weathering. Land reclamation technology can be applied to these mining sites as a preventive measure to decrease weathering and leaching processes. © Springer Science+Business Media B.V. 2011. Source

Filonenko N.Y.,Dnipropetrovsk State Medical Academy | Bereza O.Y.,Dnipropetrovsk State Agrarian University | Pilyaeva S.B.,Dnipropetrovsk National University
Materials Science

It is shown that plastic prestraining intensifies the diffusion of carbon and boron. We obtain boroncemented layers with homogeneous structure and improved physicochemical properties hardened with finely divided boron carbides. © 2015 Springer Science+Business Media New York. Source

Kharytonov M.M.,Dnipropetrovsk State Agrarian University | Khlopova V.M.,Dnipropetrovsk Hydrometeorological Center | Stankevich S.A.,Scientific Center for Aerospace Research of the Earth | Titarenko O.V.,Scientific Center for Aerospace Research of the Earth
NATO Science for Peace and Security Series C: Environmental Security

Data of atmospheric remote sensing in Dnepropetrovsk region have been obtained for different periods (2001, 2004, 2005, 2006 and 2010) from five points located within the Dnepropetrovsk region. Current ground-based stationary research has been carried out at three observation laboratories controlling air pollution during the last 15 years. This paper analyzes the annual mean of the NO2 concentration, on a regional (south east of Ukraine) scale. A tendency for increased nitrogen dioxide concentrations in the air around cities such as Dnepropetrovsk, Dneprodzerzhinsk and Krivoy Rog is found. The average nitrogen dioxide concentrations registered at all these cities' observation stations have exceeded the maximum permissible concentration values by as much as three to four times during the last decade. © Springer Science+Business Media Dordrecht 2013. Source

Biliaiev M.M.,Dnipropetrovsk University of Engineers of Railway Transport | Kirichenko P.S.,Dnipropetrovsk University of Engineers of Railway Transport | Kharytonov M.M.,Dnipropetrovsk State Agrarian University
NATO Science for Peace and Security Series C: Environmental Security

Huge quantities of mine waters are discharged to the rivers from Krivoy Rog iron ore mines in the south of Ukraine. At present, the project of these mine waters discharge into the Black Sea is worked out. The problem of this discharge environmental impact assessment is of great interest. One of the branches of this problem is the prediction of the sea pollution in the case of mine waters discharge. Numerical model to calculate the sea point pollution in the case of the mine waters discharge was developed. The model is based on the 3D equations of potential flow and pollutant dispersion. The implicit difference schemes were used for the numerical integration of the governing equations. New type of arrangement for the mine waters discharge into the sea was developed. © Springer Science+Business Media Dordrecht 2013. Source

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