CYTOGENETIC MONITORING AS THE METHOD OF INTEGRAL EVALUATION OF URBAN SYSTEM STATE OF RIVNE

Abstract

There is regularly registered exceeding of norms in the atmospheric air of Rivne as to the content of nitrogene dioxide, benzopyrene, carbon oxide, phenol dioxide of sulphur, formaldehyde and other mutagens. The object of the work was aimed at the evaluation of urban ecosystem state of Rivne as to the indices of cytogenetic monitoring. The following methods have been used: according to the test: «The frequency of epithelium-cytes with micronucleus in the mucous coat of oral cavity for pre-school age children (MN test)» and the test-system Taraxacum officinalis Webb «The sterility of plants-bioindicators pollen». The statistic working up of the research results was carried out using the block of programmes Microsoft Office 2007. Scientific novelty and practical significance of the work was based on the evaluation of ecological state of the city according to the test «The sterility of pollen Taraxacum Officinalis Webb». On the whole, within the years 2006-2007 ecological situation in the city according to this test is estimated as moderately dangerous with conflict and threatening state of bioidicators and medium level of their damage. As for the concentration of CO dispersion there were discovered zones of the highest pollution of the atmospheric air of Rivne Simultaneously biotesting by micro-nuclear test of the children under school age residing the areas of twelve test-zones was carried out. It is ascertained that medium value of micro-nuclear index in the test-zones reached the value from the lowest 0,017 to the highest 0,037 (medium 0,028±0,001). The highest values of micro-nuckear index were discovered in the territories of the city where there are located enterprises and where there is intensive traffic. The lowest ones were discovered in the territory with one-storeyed buildings. On the whole, within the years 2011-2015 ecological situation of the city according to micro-nuckear test is estimated as satisfactory with alerting state of biosystems and lower than medium level of genetic damage. It is confirmed that the growth of summary volumes of pollutants emission coming into the city atmosphere is accompanied by the growth of diseases being spreading among city residents.