This paper discusses the impact of the COVID-19 pandemic on air pollution. Many urban inhabitants were confined to their homes during the lockdown. This had an impact air pollution, due to a reduction the number of vehicles being operated in cities. People also limited the number of visits to shopping centers; additionally, sports venues were closed and cultural events cancelled. The COVID-19 pandemic therefore had a positive impact on air pollution. Several studies from around the world confirm this. The research presented here is based on hourly measurements of PM10 and NO2 concentrations measured in background ambient air at a specific intersection located in Uherske Hradiste, Czech Republic. The aim of the paper is to confirm or exclude the hypothesis that the measured concentrations of PM10 and NO2 pollutants were lower during 2020 than in 2019, when states of emergency related to the COVID-19 pandemic were declared. The data were aggregated into monthly subsets and statistically analyzed. The data was graphically visualized and evaluated by means of exploratory data analysis. To compare the pollution levels in individual months, a parametric statistical analysis (two-sample t-test) was used. A statistically significant reduction was observed in the measured concentrations in 2020 compared to 2019 during periods when states of emergency were declared.
Today we live in a time when it is necessary to try to minimize risks to the lowest possible level of risk. There are several risks in the SMEs as the environmental, economic and others. We do not constantly manage to eliminate the risks. For risk management purposes, the use of project risk management using software is appropriate. Today, it offers a plethora of software that allows them to be used. Thanks to this software, work is simplified, and there is no human error. The aim of this article would be to analyze the risks in small and medium enterprises. For this purpose, Pareto analysis, Chi-squared test were used, and the most significant risks were evaluated. Furthermore, the methods used in risk management were assessed. In the conclusion of the paper, the results of the work were summarized, and recommendations for small and mediumsized enterprises in the field of project risk management were proposed.
The threat of theft of works of art, antiques and books which are always being stolen from museums, galleries and archives in the Czech Republic, as well as abroad, remains present. Given the existence of the current stolen objects markets and the fact that artefacts keep their value which grows in time, theft will continue into the future. Thus, the security of museum collections and buildings is a pressing issue. It is, therefore, important to seek modern, secure and cheap solutions for the smaller museums in the Czech Republic. This paper describes the current state of security in the Czech Republic and proposes appropriate solutions of the problem of security in museums and galleries. The situation is very critical in some museum areas. Historic heritage is not sufficiently protected. The present study solves the analysis of the state of the historical heritage at present. The protection of the historical heritage is better than the Velvet Revolution. The article deals with the protection of monuments currently, analyzes the current security situation in museums in the Czech Republic and suggests a solution that would improve the future security of artefacts. Faculty of Logistics and Crisis Management prepares a workplace to help museums work with risks.
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