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Prediction of mean hourly values of surface ozone concentrations from passive sampler measurements
Sinkulová, Michaela ; Hůnová, Iva (advisor) ; Zíková, Naděžda (referee)
In terms of air pollution, ground-level ozone is according to current knowledge, contributes the most to damage to ecosystems. To calculate the key indicators of potential damage to ecosystems, such as the exposure index AOT40 and stomatal flux, it is important to know the hourly ozone concentrations, which are the input data for both calculations. For the measurement of O3 air pollution concentrations for the purposes of environmental studies, continuous measurement is not used, but measurement by passive (diffusion) dosimeters, which are exposed for a longer period (usually 1 week-1 month) and thus indicate the average concentration for the relevant longer period. The aim of this diploma thesis is the prediction of hourly concentrations of ground-level ozone from measurements by diffusive samplers, which took place in the period 2006-2010 in Jizerské hory mountains. Monitoring always took place for 2 weeks during the vegetation seasons (April-October) at localities and at various altitudes (714 m above sea level - 1,000 m above sea level). Ogawa diffusive samplers were used. From these average and meteorological concentrations, hourly values of ground-level ozone concentrations were calculated according to the model from professional study and these were compared with measurements from an...
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New low-cost polutant sensor evaluation
Sinkulová, Michaela ; Zíková, Naděžda (advisor) ; Hovorka, Jan (referee)
This bachelor thesis deals with the introduction and subsequent comparison of low-cost sensors measuring air pollutants, which were used in the Citi-sense project in Ostrava. The results of the measurements carried out in the period from 1st June 2015 to 7th September 2015, are compared with reference data measured by the Czech hydrometeorological institute during the same period. The data are analyzed to provide the basis for further research into low-cost devices monitoring air pollution. Basic parameters such as average values, correlation coefficient, slope of linear regression, reproducibility of results, RMSE, and weekly and daily cycle are calculated for all measured pollutants (O3, CO, NOx, NO2, NO, PM10). The results are graphically illustrated and commented. The thesis also discusses the concordance of concentrations measured by the sensors with the data from the reference instruments, and the use of these new sensors in air quality monitoring in the future. Key words: Low-cost sensors, pollutants, air pollution monitoring methods
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New low-cost polutant sensor evaluation
Sinkulová, Michaela ; Zíková, Naděžda (advisor) ; Hovorka, Jan (referee)
This bachelor thesis deals with the introduction and subsequent comparison of low-cost sensors measuring air pollutants, which were used in the Citi-sense project in Ostrava. The results of the measurements carried out in the period from 1st June 2015 to 7th September 2015, are compared with data measured by the Czech hydrometeorological Institute during the same period of time. The data are designed to provide the basis for further research into low-cost devices monitoring air pollution. Basic parameters such as average values, correlation coefficient, slope of linear regression, weekly and daily cycle are calculated. The results are graphically illustrated and commented. The thesis also discusses the concordance of individual concentrations and use of these new sensors in air quality monitoring in the future. Key words: Low-cost sensors, pollutants, air pollution monitoring methods
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