Indoor air quality in kindergartens and primary schools L. Kuby 48, České Budějovice

The bachelor thesis deals with the quality of the internal environment at primary school and kindergarten L. Kuby 48, České Budějovice which are connected in one area. Its substance is the measurement of carbon dioxide, humidity and temperature in relation to the time and its impact on pupils based on my own observations and findings. The thesis also includes a survey on the basis of which was evaluated the connection of primary and nursery schools. The establishment of primary school is dated in 1927. The Kindergarten was established in 2011 in the former area school clubs built in 1969. Quality of internal and external environment is getting worse and is still a hot topic. Indoor air is dependent on many factors which is influenced by. The thesis is divided into two main parts. The first, the theoretical part deals with general and specific knowledge of pollutants occurring in the internal environment of buildings, their increase or decrease and the reasons for change and the overview of concentrations reported in the literature and legislation. In my thesis are mentioned the individual components of indoor air, their causes, sources. Of these substances I focus on a substance which most influences the quality of indoor climate and that is the carbon dioxide or CO2. This compound is introduced in my thesis. There are presented its usual concentration in the interior and the exterior, sources and health consequences which may be caused by high concentrations. The carbon dioxide has according to applicable legislation limiting concentration of 1000 ppm. During the measurements acquired by values in the indoor environment from 705 ppm to 3225 ppm. The threshold of concentration for this thesis was set at 1500 ppm. In the second, the empirical part, were used two methods of processing. The first method was a secondary analysis of data obtained from primary school and kindergarten L. Kuby 48 and on the basis of my investigation. The results of measurement and investigations are presented in my thesis. I present the measured values which were investigated. The survey was conducted in six rooms. For each surveyed room is described the current situation at the time of measurement, specified and graphically measured values. For the measurements in most cases was set up so called the step of measurements for period of two minutes i.e., every two minutes were recorded actual measured values of studied variables, which were then processed and evaluated. In all classes were found to exceed the limit concentrations of carbon dioxide. The temperature and the humidity were acceptable according to the legislative regulations. The second method is the method used for querying the use of quantitative research by technique of an anonymous questionnaire stated in the annex. During this investigation was asked a total of 140 respondents. For the assessment has been used 127 questionnaires. Between those interviewed were children of secondary school, also parents of children from primary school and parents of children from kindergarten. Questionnaires were statistically analysed and evaluated on the basis of the hypothesis. By the following research, were both stated hypotheses confirmed. In the case of the first hypothesis that the combination of primary and nursery schools in one area is an advantage for parents and children 75.78% of respondents answered YES. The remaining 24.22% answered NO or did not answer. When querying on the second hypothesis, whether the parents are satisfied with the operation of primary schools and kindergartens L. Kuby 48, 82.35% of respondents answered YES. The remaining 17.65% of the respondents answered NO or did not answer again. The respondents' answers and evaluation of questionnaires is graphically recorded in the thesis. Parts of this thesis are attached photographs which document the progress of measurements