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Assessment of Hazards of Hazardous Chemical Industrial Toxic Substances
Poláček, Tomáš ; Hradil, Jaroslav (referee) ; Mika, Otakar Jiří (advisor)
This thesis focuses on the overall risk exposure of hazardous industrial chemical toxic substances on the human body, describes the physical and chemical properties of the substances, their toxicological properties and environmental hazards. In the practical part is made methodology for assessment of hazards of hazardous chemical industrial toxic substances, depending on the selected properties. Furthermore, is made the basic statistics of actions of the Fire Department of Southern Region to hazardous chemicals in the years 2006 - 2010.
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Estimation of the potential consequences of the release toxic substances
Hajný, Vít ; Kotek, Luboš (referee) ; Tabas, Marek (advisor)
This bachelor thesis is concerned about the estimation of possible impact during the toxic material escape and it is devided into three parts. The first of them contains description of the significant accidents connected with this escape in the Czech republic and in the world. It includes also description of CEI (chemical exposure index), which determine the estimation and there is described the ALOHA (Areal locations of hazardous atmosphere), program whereby we can compare results. The second part is performed an identification and choice of typical accidents. In the last, practical section, are made estimates of potential consequences and their comparison.
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Toxic substances in food and public health
SOSNA, Filip
This diploma thesis dealt with the area of toxic substances in food and their impact on public health. The work aims to describe the types and occurrence of toxic substances, analyze the current state of toxic substances found in food and define their impact on public health. It also aimed to describe the effects of toxic substances on the human body. The work is divided into theoretical and practical part. The theoretical part first introduces the historical origins of the scientific field of toxicology. It also defines basic toxicological terms and parameters. Describes factors affecting the toxicity of substances, absorption, distribution, the effect of metabolism and excretion of toxic substances. Objective 1 was met by describing the basic types of natural and foreign toxic substances. Furthermore, their occurrence was described and their impact on public health was defined. The effects of toxic substances on the human body have been described in relation to Objective 2. The effects of toxic substances can manifest themselves in many ways. It can be mild nausea or even death. The second half of the theoretical part deals with toxic substances in the food industry. It describes a massive increase in the use of chemicals in food and agriculture, whether they are various pesticides, crop treatments, or various additives that are added to foods to improve some of their properties. Some of these substances can have an adverse effect on health, and when we consume them in food in quantities that are permitted by legislation, no one has a clear idea of what the consumption of additives and pesticide residues in food can cause us in the long term. The practical part examines the awareness of the general population about toxic substances in food and their impact on public health. The practical part was created using quantitative research, which was conducted through a questionnaire survey. The questionnaire was created on the basis of the theoretical part of the work. The research group consisted of 114 respondents from the general population. The questionnaire consisted of 21 questions that examined the addressees' awareness of toxic substances in food and public health. The results of the research survey corresponded the given knowledge to two research questions, which asked the work whether the public is oriented in the field and whether they differ according to their education. The results were graphically processed and evaluated. It was found that the public is not very familiar with toxic substances in food and public health. The work can serve as a comprehensive educational material on toxic substances in food and public health. The theoretical benefits of this work include an analysis of the current state of toxic substances in food, including a description of control authorities and relevant legislation in the field of toxic substances in food and public health. Among the practical benefits is the creation of a questionnaire that examined public awareness of this issue. Based on the achieved results, follow-up work can be proposed - for example, exploring the possibility of raising public awareness of toxic substances in food.
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Estimation of the potential consequences of the release toxic substances
Hajný, Vít ; Kotek, Luboš (referee) ; Tabas, Marek (advisor)
This bachelor thesis is concerned about the estimation of possible impact during the toxic material escape and it is devided into three parts. The first of them contains description of the significant accidents connected with this escape in the Czech republic and in the world. It includes also description of CEI (chemical exposure index), which determine the estimation and there is described the ALOHA (Areal locations of hazardous atmosphere), program whereby we can compare results. The second part is performed an identification and choice of typical accidents. In the last, practical section, are made estimates of potential consequences and their comparison.
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Assessment of Hazards of Hazardous Chemical Industrial Toxic Substances
Poláček, Tomáš ; Hradil, Jaroslav (referee) ; Mika, Otakar Jiří (advisor)
This thesis focuses on the overall risk exposure of hazardous industrial chemical toxic substances on the human body, describes the physical and chemical properties of the substances, their toxicological properties and environmental hazards. In the practical part is made methodology for assessment of hazards of hazardous chemical industrial toxic substances, depending on the selected properties. Furthermore, is made the basic statistics of actions of the Fire Department of Southern Region to hazardous chemicals in the years 2006 - 2010.
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Antropogenní tlaky na stav půd‚ vodní zdroje a vodní ekosystémy v české části mezinárodního povodí Labe: Přehled toxických prvků a vymezení jejich anomálního výskytu v povodí Labe
Výzkumný ústav vodohospodářský T.G. Masaryka, v.v.i., Praha ; Kozlová, Marie ; Vencelidesová, Martina ; Vencelides, Zbyněk ; Prchalová, Hana ; Hrkal, Zbyněk
Zpráva obsahuje archivní rešerši, která byla zpracována s cílem shromáždit a vyhodnotit dostupné relevantní informace o obsazích, formách výskytu a hydrogeochemických procesech, které řídí chování zpracovaných kovů v litosféře a hydrosféře. Byla připravena metodika stanovení hodnoty přirozeného pozadí na základě analýzy prostorových závislostí koncentrací zájmových kovů na litologickém typu podloží a rozčlenění dat o obsazích kovů v podzemní vodě podle litologických typů sledovaných kolektorů. Jsou uvedeny podrobné výsledky stanovení hodnot přirozeného pozadí.
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Antropogenní tlaky na stav půd‚ vodní zdroje a vodní ekosystémy v české části mezinárodního povodí Labe: Přehled toxických prvků a vymezení jejich anomálního výskytu v povodí Labe
Výzkumný ústav vodohospodářský T.G. Masaryka, v.v.i., Praha ; Olmer, Miroslav ; Hofmannová, Gabriela ; Šnajberková, Marie ; Hrabánková, Anna ; Hrkal, Zbyněk ; Prchalová, Hana
Cílem dílčího úkolu je zpracování metodiky stanovení přirozeného pozadí toxických prvků v útvarech podzemních vod ČR, stanovení přirozených pozadí vybraných prvků v útvarech podzemních vod a jejich pracovních jednotkách v oblasti povodí Labe a vytvoření mapy anomálních výskytů toxických prvků v oblasti povodí Labe. V roce 2007 byl proveden rozbor požadavků na zjišťování přirozeného pozadí toxických prvků, zpracována kritická rešerše výsledků evropského projektu BRIDGE, proveden výběr hodnocených ukazatelů, zahájen sběr potřebných dat a posouzení jejich věrohodnosti a využitelnosti a zpracována první verze metodiky zpracování hodnot přirozeného pozadí toxických prvků.
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