The Influence of Building Renovations on Indoor Comfort—A Field Test in an Apartment Building

Ala-Kotila, Paula; Vainio, Terttu; Laamanen, Jarmo

doi:10.3390/en13184958

Cited by 7 publications

(6 citation statements)

References 44 publications

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“…In the last step, the air sample collected is precisely analyzed by GC/MS (Gas Chromatographic/Mas Spectroscopy). However, since the device used in this study is a direct-reading method for instantaneous values, it is a method of measuring instantaneous concentrations multiple times, unlike the collection method of process test methods [61,62]. In addition, since this study also aims to identify the influencing factors, it has the meaning of multiple measurements to collect time-variation values rather than one-time measurements in one building.…”

Section: Methodsmentioning

confidence: 99%

Evaluating the Indoor Air Quality after Renovation at the Greens in Dubai, United Arab Emirates

Awad

Jung

2021

Buildings

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The Public Health and Safety Department of Dubai Municipality had evaluated the indoor air quality in public buildings in 2013, then established the IAQ (Indoor Air Quality) regulation. Even though IAQ in public building is in control, indoor air pollution in new and renovated housing is still very problematic. The objective of this paper is to measure the indoor air quality of the residential unit in an apartment after renovation to evaluate the actual condition and to analyze the influential factors. As a methodology, field measurements, resident interviews, and observations were conducted for 20 residential units to investigate basic information, renovation contents, ventilation characteristics, and SBS (Sick Building Syndrome) symptoms. The results showed that renovation related to the indoor air quality was the replacement of finishing materials. It was statistically proven that the average CO2 for each house was 683–2309.4 ppm, and 15 houses exceeded the WHO IAQ standards. TVOC had an average concentration of 0–3.0 ppm per house, exceeding the standard in 10 houses. Formaldehyde (CH2O) had an average concentration of 0–1.02 ppm per house, exceeding the WHO IAQ standard (0.1 ppm) in 12 houses. However, even though the indoor air quality was polluted, the residents were hardly aware of it based on subjective response survey. As the amount of renovation increases, the concentration of formaldehyde (CH2O) increases significantly, and excessive renovation should be avoided. This study will serve as a basic dataset to suggest that the new IAQ regulation not be compulsory for residents; rather, they must induce contractors with stipulation to maintain IAQ during and after renovation.

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Section: Methodsmentioning

confidence: 99%

Evaluating the Indoor Air Quality after Renovation at the Greens in Dubai, United Arab Emirates

Awad

Jung

2021

Buildings

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“…Usage of such a type of ventilation demands an additional space for its installation [32,33]. The installed elements include ducts, intakes, exhausts and air handling units.…”

Section: Air Quality Standardsmentioning

confidence: 99%

The Well-Being of Children in Nurseries Does Not Have to Be Expensive: The Real Costs of Maintaining Low Carbon Dioxide Concentrations in Nurseries

Ratajczak

Basińska

2021

Energies

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There are different standards and regulations outlining the requirements regarding building air quality as well as in nurseries. These requirements specify air stream supplies and carbon dioxide concentration levels, both of which ensure proper indoor air quality. Mechanical ventilation should be used to maintain acceptable carbon dioxide levels. This article analyses the use of ventilation equipped with decentralized units, which helps secure the well-being of children. This paper proposes and evaluates economically affordable ventilation units. An algorithm for selecting the size of the devices is described by the supplied air stream depending on the number of children present at the nursery. A method of transferring the investment costs related to the assembly of the given units to the parents is proposed. Air quality in terms of CO2 concentrations was based on the following levels: 750 ppm, 1000 ppm, 1500 ppm. This assessment also includes the investment costs resulting from device usage and the costs of electricity consumed by the fans. These results showed the additional costs that assure the air quality improvement do not have to be high (45 PLN/month, ~10 EUR/month) per child attending the nursery. A 3% tuition increase returns the investment costs on mechanical ventilation within four years.

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“…In the last step, the air sample is analyzed by GC/MS (Gas Chromatography/Mass Spectroscopy). However, since the device used in this study is a directreading method for instantaneous values, it is a method of measuring instantaneous concentrations multiple times, unlike the collection method of process test methods (Huang et al, 2011;Ala-Kotila et al, 2020). In addition, since this study also aims to identify the influencing factors, it has the meaning of multiple measurements to collect time-variation values rather than one-time measurements in one building.…”

Section: Measuring Instrumentsmentioning

confidence: 99%

The Analysis of Indoor Air Pollutants From Finishing Material of New Apartments at Business Bay, Dubai

Jung

Qassimi

Arar

et al. 2021

Front. Built Environ.

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Due to fast economic development, Dubai has built many high-rise apartments in a short period of time. The Dubai Municipality attempts to control indoor air quality with strict regulations, but the detailed provisions are still not comprehensive. The objective of this paper is to conduct on-site measurements for new high-rise apartments before moving on to investigate indoor air pollution and to analyze pollutant emissions by type of finishing material. As a methodology, on-site measurements were conducted fornine different housing units (three lower, three middle, and three higher floors) before moving on to investigate the status of indoor air pollution in new apartments. Based on the on-site measurements data, lab experiments with a small chamber for the same finishing materials from the most polluted housing unit (a lower two bedroom unit) were conducted to measure the emission of pollutants over 30 days. The result shows that the average of CH2O (64.4 μg/m3 for studio, 64.5 μg/m3 for one bedroom, and 83.4 μg/m3 for two bedroom) was lower than the standard (100 μg/m3) in all units, while the average TVOC (520.1 μg/m3 in the studio, 509.5 μg/m3 in one bedroom, and 754.7 μg/m3 in two bedroom) exceeded the standard (500 μg/m3) in most of the units. It was proven that regarding the CH2O, silk wallpaper, initial wallpaper, and wallpaper adhesive had the highest emissions and for the TVOC, tile and tile adhesive had the highest emission. During small chamber experiments, CH2O and TVOC emissions tended to decrease gradually over time, but the emission amount changed significantly in high pollutant emission material especially from day 1–10. Therefore, Dubai municipality should establish the regulation for residents to move into their new apartment after at least 10 days to avoid the high polluted emission from the curing process of the interior finishing material.

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The Influence of Building Renovations on Indoor Comfort—A Field Test in an Apartment Building

Cited by 7 publications

References 44 publications

Evaluating the Indoor Air Quality after Renovation at the Greens in Dubai, United Arab Emirates

Evaluating the Indoor Air Quality after Renovation at the Greens in Dubai, United Arab Emirates

The Well-Being of Children in Nurseries Does Not Have to Be Expensive: The Real Costs of Maintaining Low Carbon Dioxide Concentrations in Nurseries

The Analysis of Indoor Air Pollutants From Finishing Material of New Apartments at Business Bay, Dubai

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