scholarly journals Factors affecting the indoor air quality of middle-class apartments in major cities in Indonesia: A case study in Surabaya city

2020 ◽  
Author(s):  
Arie Dipareza Syafei ◽  
Usep Surahman ◽  
Alvin Christianta Sembiring ◽  
Alfendha Wiranditya Pradana ◽  
Tresta Nurina Ciptaningayu ◽  
...  
Keyword(s):  
Air Quality ◽  
Middle Class ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Factors Affecting

scholarly journals Assessment of Indoor Air Quality of Classroom in School by Means of Source Generation - Case Study

2005 ◽  
Vol 14 (10) ◽  
pp. 979-983 ◽  
Author(s):  
Won-Ho Yang ◽  
Jae-Cheol Byeon ◽  
Young-Hee Kim ◽  
Dae-Won Kim ◽  
Bu-Soon Son ◽  
...  
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air

scholarly journals Influence of Parquet Flooring on the Indoor Air Quality of Private Residence: A Case Study

2020 ◽  
Author(s):  
Swaraj Paul
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Health Hazard ◽  
First Time ◽  
Flooring Material ◽  
Very High ◽  
Ventilation Conditions

<p>This paper presents results from a case study on IAQ in a residence where the occupants complained about health problems during a few years’ time including infants after they changed the flooring to a new parquet flooring in both the floors. During the last years the health conditions of the children became very bad resulting into several emergency visits to the hospital. This study presents measured values for VOC and aldehydes under different conditions. Initial measurements showed that the values were very high and exceeded all the recommended health Hazard limits. This resulted into the decision that all the parquet flooring was removed. This study shows how the values of VOC and aldehydes decreased with time and also the decrease did not follow the general diffusion principles. Therefore, forced ventilation conditions under elevated temperature and very high relative humidity were used to accelerate the release rate. This study shows that elimination of volatiles was a very slow process and it took almost 30 days to achieve acceptable concentration levels both for the aldehydes and for the VOCs.</p> <p> </p> <p>This case study shows for the first time that although such flooring material meets the standard, how they may influence the IAQ of residential houses. In case if such contaminations occur, this study also shows that how the reduction rates of chemicals and specially aldehydes in indoor air could be accelerated by using different accelerated ventilation conditions. The study shows that the health hazards due to the presence of aldehydes in indoor air are underestimated in normal IAQ control routines. Since, aldehydes are classified as carcinogens, the study shows that measurement of aldehyde concentrations in indoor air should always be included in the indoor air quality control to assure a healthy indoor air climate. <b><i></i></b></p>

scholarly journals Combined Model for IAQ Assessment: Part 1—Morphology of the Model and Selection of Substantial Air Quality Impact Sub-Models

2019 ◽  
Vol 9 (18) ◽  
pp. 3918 ◽  
Author(s):  
Piasecki ◽  
Kostyrko
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Quality Index ◽  
Practical Case ◽  
Indoor Environmental Quality ◽  
Comfort Index ◽  
Application Potential

Indoor air quality (IAQ) is one of the most important elements affecting a building user’s comfort and satisfaction. Currently, many methods of assessing the quality of indoor air have been described in the literature. In the authors’ opinion, the methods presented have not been collected, systematized, and organized into one multi-component model. The application purpose of the assessment is extremely important when choosing IAQ model. This article provides the state-of-the-art overview on IAQ methodology and attempts to systematize approach. Sub-models of the processes that impact indoor air quality, which can be distinguished as components of the IAQ model, are selected and presented based on sensory satisfaction functions. Subcomponents of three potential IAQ models were classified according to their application potential: IAQ quality index, IAQ comfort index, and an overall health and comfort index. The authors provide a method for using the combined IAQ index to determine the indoor environmental quality index, IEQ. In addition, the article presents a method for adjusting the weights of particular subcomponents and a practical case study which provides IAQ and IEQ model implementation for a large office building assessment (with a BREEAM rating of excellent).

scholarly journals Influence of Parquet Flooring on the Indoor Air Quality of Private Residence: A Case Study

2020 ◽  
Author(s):  
Swaraj Paul
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Health Hazard ◽  
First Time ◽  
Flooring Material ◽  
Very High ◽  
Ventilation Conditions

<p>This paper presents results from a case study on IAQ in a residence where the occupants complained about health problems during a few years’ time including infants after they changed the flooring to a new parquet flooring in both the floors. During the last years the health conditions of the children became very bad resulting into several emergency visits to the hospital. This study presents measured values for VOC and aldehydes under different conditions. Initial measurements showed that the values were very high and exceeded all the recommended health Hazard limits. This resulted into the decision that all the parquet flooring was removed. This study shows how the values of VOC and aldehydes decreased with time and also the decrease did not follow the general diffusion principles. Therefore, forced ventilation conditions under elevated temperature and very high relative humidity were used to accelerate the release rate. This study shows that elimination of volatiles was a very slow process and it took almost 30 days to achieve acceptable concentration levels both for the aldehydes and for the VOCs.</p> <p> </p> <p>This case study shows for the first time that although such flooring material meets the standard, how they may influence the IAQ of residential houses. In case if such contaminations occur, this study also shows that how the reduction rates of chemicals and specially aldehydes in indoor air could be accelerated by using different accelerated ventilation conditions. The study shows that the health hazards due to the presence of aldehydes in indoor air are underestimated in normal IAQ control routines. Since, aldehydes are classified as carcinogens, the study shows that measurement of aldehyde concentrations in indoor air should always be included in the indoor air quality control to assure a healthy indoor air climate. <b><i></i></b></p>

Sign in / Sign up

Export Citation Format

Share Document