Utilization of ventilation systems to maintain selected environmental comfort parameters at the required level
[ 1 ] Instytut Inżynierii Środowiska i Instalacji Budowlanych, Wydział Inżynierii Środowiska i Energetyki, Politechnika Poznańska | [ P ] pracownik
2024
abstrakt
angielski
- preschool
- air quality
- microbiological contamination
- ventilation installation
EN In recent times, society has become increasingly aware of potential health problems associated with indoor environments. This is particularly important when considering young children, whose immune systems are not fully developed. Additionally, indoor air quality is influenced by outdoor air quality, which is often poor in many areas, especially in urbanized areas. This article presents the results of research on selected environmental comfort parameters conducted in preschool classrooms located near busy roads. Each preschool classroom has an independent ventilation system managed by childcare providers. The article focuses on microbiological indicators of air quality (the general count of mesophilic bacteria, the general count of psychrophilic bacteria, the count of Staphylococcus (Staphylococcus) mannitol positive (type α) and mannitol negative (type β), the count of Pseudomonas fluorescens bacteria, actinomycetes (Actinobacteria), physical parameters (temperature, relative humidity, suspended particles), and chemical parameters (carbon dioxide and radon concentrations). Our analysis indicates that when the ventilation system in the building is consciously operated, it ensures the maintenance of the analysed parameters at an acceptable level. The main sources of microbial air pollutants in indoor environments are the buildings themselves, including the people inside them. The use of the ventilation system has led to an improvement in the physical property of the air, but did not significantly improve its microbiological quality.
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