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Bromine in the natural environments of the Tomsk region and its toxicity assessment

Abstract : Bromine in contrast to other, even less common chemical elements, still remains one of the least studied. However, a great number of works show that it can be extremely toxic, exerting a negative impact on important physiological functions of living organisms and participating in the development and formation of certain types of diseases. The objective of this thesis is to establish accumulation and distribution features of bromine in the components of the natural environment of the Tomsk region, and to characterize its human and ecotoxicological impacts according to the USEtox model. This is achieved by combining two approaches: sampling methods and ecological modeling technics. Within the framework of the thesis, the content of bromine in 2709 samples is considered. The reliability of the work is provided by a statistically significant number of samples, analyzed by modern highly sensitive analytical methods (INAA, ICP-MS, X-ray fluorescence analysis, scanning electron microscopy) in accredited laboratories. Also for the first time, characterization factors for bromine have been calculated within the USEtox model. The results obtained could be useful in the future when evaluating the environmental impacts of chemicals and the associated risks for ecosystems and human health as well as for geoecological monitoring of the territory
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Submitted on : Monday, October 12, 2020 - 1:18:12 PM
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Tatiana Perminova. Bromine in the natural environments of the Tomsk region and its toxicity assessment. Environmental Engineering. Université de Technologie de Troyes; Université polytechnique de Tomsk (Russie), 2017. English. ⟨NNT : 2017TROY0027⟩. ⟨tel-02964350⟩



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