ASSESSMENT OF POLLUTION OF ATMOSPHERIC AIR OF STERLITAMAK OF THE REPUBLIC OF BASHKORTOSTAN WITH APPLICATION OF THE METHOD OF BIOTESTING
The purpose of this work is an assessment of impact of emissions of motor transport on atmospheric air of Sterlitamak. The assessment was carried out by the analysis of a condition of snow cover in various functional zones of Sterlitamak by means of biotesting on a watercress and Daphnia Magna. Endophytic bacteria Bacillus subtilis 26D was employed in an experiment because it is known that endophytic strains B. subtilis are capable to promoting growth of plants because of biological activity. The study found that smaller indicators of growth and germination of seeds of watercress and survival of Daphnia Magna have been received for the samples which were selected at road intersections, on sites with heavy traffic of vehicles or in close proximity to a highway. High indicators have received for the samples which were taken in place with circular movement, with small intensity of the movement or located in a distance from the roadway. Also results of researches have shown that growth indicators and an indicator of germination of cress were higher in plants inoculated with Bacillus subtilis 26D in comparison with the uninoculated. At cultivation of Daphnia Magna in tubes with melting water with addition the endophytic bacteria their quantity was also higher, than in the test tubes which weren't containing bacilli.