The microbiology contaminants and microclimate parameters in the nursery building

Abstract

The indoor microclimate quality is an important factor affecting the human body. Inappropriate microclimate parameters and air pollutants can cause health problems or even be life-threatening. In addition, it can reduce work productivity and learning efficiency. In the article, the analysis of the rooms in the nursery building ventilated by a mechanical system equipped with air ionizers was conducted. The results of research were compared with the research results for rooms of the same type, but equipped with the passive stack ventilation. Fungi were detected in the analyzed building that does not pose a threat to the lives of people, but they can cause allergies and asthma. With regard to the reference objects, in the analyzed building, the microclimate was free from fungi species yeast-like fungi and Trichoderma viride, which occurred in the reference rooms. The indoor relative humidity was kept at a level not conducive to the development of fungi. The concentration of the carbon dioxide in rooms where children stayed permanently did not exceed the permissible value. Slight excessive concentration levels were observed only in the cloakroom. Only the internal air temperature exceeded 25 °C, which favors the development of fungi. This means that it would be appropriate to lower the indoor air temperature.

Airborne Microbial Quality Assessment in the Educational Buildings during the COVID-19 Pandemic

“…Healthy indoor air quality can be improved by avoiding overcrowding, good system design [47,57], and suitable construction materials [29]. Density in the room causes poor indoor air quality, especially for increased temperature, humidity, and carbon dioxide [58]. Monitoring indoor air quality is needed to reduce symptoms of sick buildings, especially for parameters: temperature, humidity, carbon monoxide, carbon dioxide, and luminosity [59].…”

Identification of building environment problems

“…One of the ways to deal with the sick building syndrome is ensuring proper ventilation within buildings. This issue was studied by the author [8] as well as other researchers (e.g. [9]) and seems to be the answer to a number of problems related to indoor microclimate.…”

Indoor Air Factors Affecting the Growth of Microorganism in an Indonesian Gas Company’s Dormitory

“…Several prior studies have demonstrated that the microbial characterization depends on the indoor air environment and will differ greatly in season, time, ventilation, and location (Fujiyoshi, Tanaka and Maruyama, 2017). A previous study has reported that an indoor air temperature exceeding 25 o C can cause an increase in fungi growth (Zender-Świercz et al, 2019). It is also suggested that there is a correlation between the amount of fungi and the indoor air temperature (Stojanović Bjelić, Ilić and Farooqi, 2020).…”