Investigation of indoor and outdoor air quality of the classrooms at a school in Serbia

Abstract. European regulations set the condition of Zero Energy Buildings for new buildings since 2020, with an intermediate milestone in 2018 for public buildings, in order to control greenhouse gases emissions control and climate change mitigation. Given that main fraction of energy consumption in buildings operation is due to HVAC systems, advances in its design and operation conditions are required. One key element for energy demand control is passive design of buildings. On this purpose, different recent studies and publications analyse natural ventilation systems potential to provide indoor air quality and comfort conditions minimizing electric power consumption. In these passive systems are of special relevance their capacities as passive cooling systems as well as air renovation systems, especially in high-density occupied spaces. With adequate designs, in warm/mild climates natural ventilation systems can be used along the whole year, maintaining indoor air quality and comfort conditions with small support of other heating/cooling systems. In this paper is analysed the state of the art of natural ventilation systems applied to high density occupied spaces with special focus on school buildings. The paper shows the potential and applicability of these systems for energy savings and discusses main criteria for their adequate integration in school building designs.

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“…This situation has been studied in different countries, Greece [8][9][10]. In Serbia, [11] in USA, [12] Denmark and in [14] Portugal.…”

Section: Indoor Environmental Quality (Ieq) In Schoolsmentioning

confidence: 99%

“…Pollutants levels were studied in Portuguese case in [13,15] as well as in [10] and its relationship with outdoor air quality. Gennaro et al in [16] analyse different contaminants present indoor and give design recommendations as adequate ventilation systems.…”

Section: Indoor Environmental Quality (Ieq) In Schoolsmentioning

confidence: 99%

Natural ventilation systems to enhance sustainability in buildings: a review towards zero energy buildings in schools

et al. 2017

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“…Recent studies revealed that people spend more time inside buildings rather than outdoors (Yang, 2017), and the indoor concentrations of pollutants have already exceeded those of outdoors due to the presence of strong emission sources and lack of ventilation (Lee and Chang, 2000;Klepeis et al, 2001;Lee et al, 2001;Li et al, 2001;Lee et al, 2002a, b;Yrieix et al, 2010;Jovanović et al, 2014). Thus, the poor indoor air quality (IAQ) poses a heavy threat to human health (Shy et al, 2015;Ciuzas et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Indoor Air Pollution Levels in Decorated Residences and Public Places over Xi’an, China

Tian

Ren

Shen

et al. 2017

Aerosol Air Qual. Res.

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To investigate the indoor air quality (IAQ) over Xi'an, the concentrations of volatile organic compounds (VOCs, including formaldehyde, benzene, toluene, o-xylene, p-xylene, n-butyl acetate, ethylbenzene, styrene, n-undecane, and total VOCs) in 471 residential rooms and 58 public rooms during 2014-2015 were determined. All the data were measured at a variety of 6-48 months after the decorations of these rooms. The results showed that formaldehyde was the most serious pollutant in almost all the monitored rooms. The concentrations of formaldehyde in residences and public places ranged from 0. ). However, the TVOC concentrations in most sites were lower than the Chinese National Standard (GB/T 18883-2002) value. In residences, the formaldehyde and TVOC concentrations in bedrooms were slightly higher than those in living rooms and other rooms. The relationships among formaldehyde and TVOC concentrations with indoor temperature, relative humidity (RH), and decorative materials (curtain, wall decoration, wood floor, and panel furniture) were also investigated. Formaldehyde levels showed strong positive correlation with indoor temperature and RH. However, the TVOC levels had a relatively weak correlation with indoor air temperature and RH. The wall decoration and panel furniture were the main sources of indoor formaldehyde, while wood floor and panel furniture were the main sources of TVOC. In addition, indoor air pollution of three selected newly decorated houses with 11 rooms was monitored monthly for one year to evaluate the relationship between indoor pollution levels and ventilation time. It was found that the concentrations of formaldehyde and TVOC decreased with ventilation time, and the duration was one year after decoration especially after summer ventilation.

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“…It is more scientific and comprehensive [6]. Therefore, the definition has been widely recognized and accepted and applied by the international community [7].…”

Section: Introductionmentioning

confidence: 99%

Study on the Influence of Building Materials on Indoor Pollutants and Pollution Sources

Wang

2018

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. The paper summarizes the achievements and problems of indoor air quality research at home and abroad. The pollutants and pollution sources in the room are analyzed systematically. The types of building materials and pollutants are also discussed. The physical and chemical properties and health effects of main pollutants were analyzed and studied. According to the principle of mass balance, the basic mathematical model of indoor air quality is established. Considering the release rate of pollutants and indoor ventilation, a mathematical model for predicting the concentration of indoor air pollutants is derived. The model can be used to analyze and describe the variation of pollutant concentration in indoor air, and to predict and calculate the concentration of pollutants in indoor air at a certain time. The results show that the mathematical model established in this study can be used to analyze and predict the variation law of pollutant concentration in indoor air. The evaluation model can be used to evaluate the impact of indoor air quality and evaluation of current situation. Especially in the process of building and interior decoration, through preevaluation, it can provide reliable design parameters for selecting building materials and determining ventilation volume.

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Investigation of indoor and outdoor air quality of the classrooms at a school in Serbia

Cited by 98 publications

References 18 publications

Natural ventilation systems to enhance sustainability in buildings: a review towards zero energy buildings in schools

Natural ventilation systems to enhance sustainability in buildings: a review towards zero energy buildings in schools

Indoor Air Pollution Levels in Decorated Residences and Public Places over Xi’an, China

Study on the Influence of Building Materials on Indoor Pollutants and Pollution Sources

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