Garkavyi S. Hygienic assessment of methyl tert-butyl ether migration dynamics in soil

Research object: processes of migration and detoxication of methyl tert-butyl ether in soil, influence of methyl tert-butyl ether on bacteria in soil, processes of self-purification in soil, migration into groundwater, processes of self-purification in water, migration into ambient air, translocation of methyl tert-butyl ether in plants. Aim of research: hygienic assessment of methyl tert-butyl ether migration dynamics in soil and scientific substantiation of sanitary-hygienic measurements to secure soil, groundwater and human health. Methods: hygienic experiment, physical-chemical, sanitary-chemical, sanitary-microbiological, mathematic modeling, bibliographic, sanitary-statistical. Theoretical and practical results: priority sources of pollution of soil and groundwater by methyl tert-butyl ether were identified; behaviour of methyl tert-butyl ether in water was studied; maximum allowable concentration for methyl tert-butyl ether in soil was scientifically substantiated, which will reduce chemical load on environment objects, including sources of drinking water and preserve human health. Novelty: In first time in Ukraine migration dynamics of methyl tert-butyl ether from soil to surrounding objects were experimentally studied. Influence of methyl tert-butyl ether on self-purification of soil and surface water was studied. Maximum allowable concentration for methyl tert-butyl ether in soil was scientifically substantiated, which will facilitate the control of pollution of groundwater and secure human health. Analytical methods for determination of methyl tert-butyl ether in the objects of environment and plants using gas chromatography were developed. Level of inculcation: results are inculcated in 3 declarative patents and 1 informational letter. Sphere of application: medicine, hygiene.