Introduction. Air pollution with aerosols of mineral fibers in the manufacturing heat-insulating building products is the primary harmful production factor that can increase the risks of developing several diseases of various organs and systems. It determines the relevance of conducting comprehensive studies of the dust factor in such industries, assessing the relationship between mass measurements and fibre counts, the development of targeted preventive measures, considering the features of the technological process. The study aims to conduct comprehensive hygienic studies of the dust factor in the manufacturing heat-insulating building products from basalt fiber and determine the morphological features of dust at different stages of the technological process, the presence of a relationship between mass measurements and fibre counts. Materials and methods. The studies were carried out based on manufacturing heat-insulating building products from basalt fiber. To assess the dust factor, the authors carried out the analysis of mass measurements of dust and fibre counts using phase-contrast light microscopy. The authors used linear regression analysis to study the dependence of the mass measurements and fibre counts. Results. The mass measurements of dust in the working area don't exceed hygienic standards and ranges from 0.51 mg/m3 to 1.19 mg/m3, and the fibre counts are from 0.45 f/cm3 to 1.23 f/cm3. The morphological analysis of the dust samples' preparations collected on filters from the air of the working area made it possible to reveal the characteristic features of the composition of the dust at various stages of the technological process. The study confirmed a positive correlation of weak strength between fibre counts and the mass measurements. The resulting dependence model is statistically significant, but the coefficient of determination of this model (R2) is 0.043. Fibre counts in the first phase of the production cycle are significantly higher than in the second. Simultaneously, the mass measurements do not have significant differences in different phases of the production cycle. Conclusions. There is a positive correlation of weak strength between fibre counts and mass measurements, but the resulting linear regression model can explain only 4.3% of the variation of fibre counts based on the mass measurements, which does not allow using this model for converting of the results of measurements of several particles. Microscopy of dust preparations makes it possible to determine the morphological picture characteristic of various stages of the technological process. Fibre counts depend on the phase of the production cycle. The data obtained can be used to design air purification systems and operating modes at various stages of the technological process.
Our research goal was to examine health risk perception and adherence to vaccination against COVID-19 among various social and demographic population groups in Belarus. To achieve this goal, a cross-sectional study was accomplished via using an online poll. The obtained results reveal that perception of health risks caused by COVID-19 is quite significant among people living in Belarus since only 9.9 % of the questioned do not consider COVID-19 a dangerous disease. Higher levels of risk perception have been detected among medical personnel, older age groups, and people with chronic pathologies. Most respondents believe vaccination is among the most efficient anti-COVID-19 measures; however, people are rather poorly aware about provided opportunities to get vaccinated. 33.6 % among respondents who are not vaccinated don’t plan to do it with; their basic reasons for this refusal are lack of trust, both in vaccines being safe and efficient and overall trust in preparations suggested for vaccination. Having analyzed answers given by respondents who were medical workers we revealed that a greater share of them were vaccinated but reasons for refusing from vaccination were the same. 20.1 % respondents from all groups and 21.2 % medical workers who took part in the questioning stated that they needed additional information about vaccination. When developing communication strategies aimed at raising awareness among population, we should bear in mind that lower perception of COVID-19-related health risks and refusal from vaccination are more widely spread among people younger than 40; people who don’t have higher education; people with minor children in their families. Prevalence of lower COVID-19-related health risk perception is also greater among men; people who don’t live in the capital; people with eld- erly relatives in their families. Internet resources, data provided by the WHO and Public Healthcare Ministry, and medical personnel are considered the most reliable sources of information by population in Belarus.
Our research goal was to examine health risk perception and adherence to vaccination against COVID-19 among various social and demographic population groups in Belarus. To achieve this goal, a cross-sectional study was accomplished via using an online poll. The obtained results reveal that perception of health risks caused by COVID-19 is quite significant among people living in Belarus since only 9.9 % of the questioned do not consider COVID-19 a dangerous disease. Higher levels of risk perception have been detected among medical personnel, older age groups, and people with chronic pathologies. Most respondents believe vaccination is among the most efficient anti-COVID-19 measures; however, people are rather poorly aware about provided opportunities to get vaccinated. 33.6 % among respondents who are not vaccinated don’t plan to do it with; their basic reasons for this refusal are lack of trust, both in vaccines being safe and efficient and overall trust in preparations suggested for vaccination. Having analyzed answers given by respondents who were medical workers we revealed that a greater share of them were vaccinated but reasons for refusing from vaccination were the same. 20.1 % respondents from all groups and 21.2 % medical workers who took part in the questioning stated that they needed additional information about vaccination. When developing communication strategies aimed at raising awareness among population, we should bear in mind that lower perception of COVID-19-related health risks and refusal from vaccination are more widely spread among people younger than 40; people who don’t have higher education; people with minor children in their families. Prevalence of lower COVID-19-related health risk perception is also greater among men; people who don’t live in the capital; people with eld- erly relatives in their families. Internet resources, data provided by the WHO and Public Healthcare Ministry, and medical personnel are considered the most reliable sources of information by population in Belarus.
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