The authors represented integral evaluation of sanitary and epidemiologic well-being of people residing in coal miner towns. This evaluation plays an important role in formation of general including children's, occupational and infectious morbidity.
The authors represented experience of contemporary activities of Occupational center in Rostov region, demonstrated efficiency of thorough medical examinations carried by mobile clinical and diagnostic laboratories, suggested 4-levels structure of occupational service organization.
Structure and modules of computer informational-analytical system "Electronic atlas of Russia" is presented, the object of mapping in this system is epidemiology of socially significant infectious diseases. Systemic information on processes of emergence and spread of socially significant infectious diseases (anthroponoses, zoonoses and sapronoses) in the population of Russian Federation is presented in the atlas. Detailed electronic maps of country territory filled with prognosis-analytical information created by using technological achievements of mathematic and computer modeling of epidemics and outbreaks of viral and bacterial infections are of particular interest. Atlas allows to objectively evaluate the pattern of infection spread, prepare prognoses of epidemic and outbreak developments taking into account the implementation of control measures (vaccination, prophylaxis, diagnostics and therapy) and evaluate their economic effectiveness.
The risk of arsenic exposure to deer mice (Peromyscus maniculatus) living in areas of naturally and anthropogenically elevated arsenic levels was determined using three separate calculations of arsenic daily intake: Estimated daily intake (EDI), bioaccessible EDI (BEDI), and actual daily intake (ADI). The present work is of particular interest, because the risk assessments were determined for animals naturally exposed to arsenic. Gastric fluid extraction was used to obtain bioaccessibility data for soil and plant samples collected from three study sites (background, mine forest, and tailings) in Yellowknife (NT, Canada). Calculations using the EDI indicated that deer mice living in tailings habitat (average soil arsenic concentration, 1,740 +/- 2,240 microg/g) should have been experiencing serious health effects as a result of their exposure to arsenic. Using BEDI and ADI in the risk assessment calculation, however, resulted in an order-of-magnitude decrease in calculated risk. In addition, results calculated using the BEDI and ADI were not significantly different, suggesting that using bioaccessibility provides a more realistic estimate of potential risk. The present results provide evidence that the use of EDI in traditional risk assessments may seriously overestimate the actual risk, which in some instances may result in expensive and unnecessary clean-up measures.
The research purpose is an estimation of influence of the bauxite dust on the state of the bronchopulmonary system of workers. It has been indicated that exposure of the poor fibrogenic dust while the process of the bauxite ore extraction, results in development of pnevmokoniosis characterized by substantial ventilatory and haemodynamic disorders limiting the workability of patients.
The analysis of age features of prevalence of an arterial hypertensia in the basic professional groups of the coal-mining enterprises was carried out. In total 1575 workers of collieries and cuts of Kuzbas united in 9 professional groups participated in the research. The results of research demonstrated the distinctions of age structure in the professional groups, testifying about expressed professional senescence among workers of mines, which reveals itself in the decrease in relative density of persons of 50+ years. In these groups with the expressed professional senescence the decrease in relative density of persons with an arterial hypertensia--so-called effect of the "healthy worker", in turn, is observed.
The study investigated whether occupational accident risks were equally distributed across age categories over time in the context of production reorganization and work rationalization in a Swedish iron ore mine between 1980 and 1993. Three phases of reorganization, defined by productivity levels, and four age categories were related to age-related accident risk ratios using the Poisson-regression method. Accident risk ratios (ARRs) were found systematically to be higher during the two first phases and also for younger workers, in the cases of both nonspecific and specific accident risks. The steady reduction in accident rates observed did not favor all age groups of workers to the same extent. For two accident patterns out of five, workers in their thirties and forties recorded higher ARRs than those in their fifties.