Екологія

Постійний URI для цього зібранняhttps://repositary.knuba.edu.ua/handle/987654321/1243

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  • Документ
    The risk assessment of threats from biological objects in environmental safety
    (2014) Kryvomaz, T.; Voloshkina, O.
    Necessity to present results of scientific research in an accessible form for proper interpretation by public and environmental safety experts has been shown. Myxomycetes ecology and metabolism to verify their safety for human health has been evaluated as an example. Bayesian methods for probability analysis is proposed to be used for risk assessment. The "Environmental safety passports of species" are recommended for evaluation of impact of each species on the environment, humans and other living organisms.
  • Документ
    The assessment of heavy metal accumulation by myxomycetes
    (2015) Kryvomaz, T.
    The assessment of heavy metal accumulation by myxomycetes (slime moulds) has been made. The importance of these organisms for environmental safety monitoring was specified. Ecological and physiological mechanisms of ability of myxomycetes to concentrate metals and other elements from their substrates were analyzed. For five common myxomycetes species with relatively big fruiting body were compared chemical elements concentrations. Fuligo septica (L.) Wigg. was proposed as perspective ioindicator for the detection of Zn on the grounds of the ability to accumulate this metal and by reason of this species have widespread distribution in terrestrial ecosystems. Prospects of using slime molds as objects for bioremediation of contaminated soils were considered.
  • Документ
    Myxomycètes nivicoles pyrénéens et végétation
    (2019) Dussaussoi, G.; Michaud, A.; Kryvomaz, T.
    Difficiles à observer, difficiles à photographier, et encore plus difficiles à identifier, les myxomycètes nivicoles sont un monde étrange et éphémère. Méconnus de la plupart des naturalistes, botanistes et mycologues, ils constituent un royaume oublié.
  • Документ
    Pollution of atmospheric air above the city highways
    (2018) Voloshkina, О.; Sipakov, R.; Varavin, D.; Anpilova, Y.; Kryvomaz, T.; Bereznitska, J.
    The study is devoted to the estimation of pollution deposit caused by vehicles into the city total greenhouse gases emissions and to the forecast of the secondary air pollution with formaldehyde. The present study contains mathematic model which allows getting the estimation of vehicles emission in the total amount of polluted atmospheric air. The model consists of two interconnected parts: a dynamic and a kinetic one. The first part of the model is based on the Theory of Convective Jet and Thermals in the Atmosphere and allows to get the parameters of the contaminated air which is being formed over the highway. The Dynamic part of the model allows to get the total amount of hydrocarbons emission depending on the number of vehicles which is present at the same time on the highway. We also obtain the data on concentration of pollution and temperature increasing in the narrowest section of the thermal jet. The kinetic part of the model allows to determine the concentration of the secondary atmospheric air contamination with formaldehyde as a result of photochemical transformation of hydrocarbons which are the part of emission of internal combustion engine. The speed of the transformation reaction was determined by the Can't Hoff-Arrhenius deferential equation. The given mathematical model was tested with the help of the system of regular observation over the polluted atmospheric air in Kyiv city. The comparison of the estimated value of formaldehyde concentration and the observation data doesn't exceed 5 % above the maximum values. According to average monthly rates there is a false positive error (to + 20 % in the warmest months). Basing on the given model the calculator of concentration of pollution by vehicles was developed. This calculator allows to obtain rapidly the values of formaldehyde concentration, depending on air temperature, solar radiation and number of vehicles on the highway. The amount of hydrocarbon emission from the vehicles, according the suggested model, allows to estimate the deposit of vehicles into the total amount of greenhouse gases of the city. The obtained results could be useful in forming of ecological policy of the cities and in managerial decision making.
  • Документ
    The protection of wooden constructing materials and structural elements of buildings against biological damage
    (Вид-во "Львів політехніка", 2017) Kryvomaz, T.; Perebynos, A.
    The methods of wooden building materials protection from biological damage were analysed. Constant technical monitoring is the main preventive measure against damage of structural elements of the wooden buildings. The most effective methods from biological damage are chemical treatment, capillary infiltration, diffusion treatment and impregnation under pressure. The essence of action against mycodestructors is to create conditions for the preservation of wood buildings by removing danger factors: moisture more than 20 %, condensation phenomena, sharp fluctuations in temperature, freezing, stagnant air, etс. Effective preventive bioprotection methods are based on the ability of organisms to inhibition or complete growth termination of some species in the presence of the others. It was also found that for the preservation of historical-architectural buildings it is appropriate to apply diffusion method using boron compounds that are able to penetrate into the depth of the construction, while providing maximum protection with minimum interference into materials.