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 Evaluation of the Indoor Air Quality in Governmental Oversight Supermarkets (Co-Ops) in Kuwait

2019 ◽  
Vol 9 (22) ◽  
pp. 4950
Author(s):  
Almutairi ◽  
Alsanad ◽  
Alhelailah
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Quality Index ◽  
Sick Building Syndrome ◽  
Environmental Parameters ◽  
Limit Set ◽  
Sick Building ◽  
Environmental Agencies

Examining the indoor air environment of public venues, especially populated supermarkets such as Co-Ops in Kuwait, is crucial to ensure that these venues are safe from indoor environmental deficits such as sick building syndrome (SBS). The aim of this study was to characterize the quality of the indoor air environment of the Co-Ops supermarkets in Kuwait based on investigation of CO2, CO, NO2, H2S, TVOCs, and NMHC. On-site measurements were conducted to evaluate these parameters in three locations at the selected Co-Ops, and the perceived air quality (PAQ) was determined to quantify the air’s pollutants as perceived by humans. Moreover, the indoor air quality index (AQI) was constructed for the selected locations, and the ANOVA test was used to analyze the association between the observed concentrations among these environmental parameters. At least in one spot at each Co-Op, the tested environmental parameters exceeded the threshold limit set by the environmental agencies. The PAQ for Co-Op1, 2, and 3 are 1.25, 1.00, and 0.75 respectively. CO2 was significantly found in an association with CO, H2S, and TVOCs, and its indoor-outdoor concentrations were significantly correlated with R2 values ranges from 0.40 to 0.86 depending on the tested location.

scholarly journals Analysis of Restaurant Indoor Air Quality in Smoking-Allowed Vs. Smoke-Free College Communities

2020 ◽  
Vol 29 (1) ◽  
Author(s):  
Ronald Williams ◽  
Jeremy Barnes ◽  
Michael Hall ◽  
Timothy Day ◽  
Barry Hunt
Keyword(s):  
Air Pollution ◽  
Particulate Matter ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Quality Index ◽  
Indoor Air Pollution ◽  
Effective Protection ◽  
Two Cities

This study examined the indoor air quality of restaurants in two cities with universities, one smoke-free (n=15) and one that allowed smoking (n=17). Results indicated that restaurants protected by smoke-free ordinance had significantly (p=.036) lower levels of particulate matter (13.10±10.33 ug/m3) compared to restaurants which allowed smoking (130.72±212.64 ug/m3). Mean particulate matter within smoking-allowed restaurants was caused by as few as three cigarettes being smoked at one time. Based on the EPA Air Quality Index, 70.6% of smoking-allowed restaurants yielded an unhealthy classification compared to only 6.7% of smoke-free restaurants (p=.005). Smoke-free ordinances provide effective protection from indoor air pollution.

scholarly journals Thermal Comfort and Indoor Air Quality after a Partially Energy-efficient Renovation of a Prefabricated Concrete Kindergarten Constructed in 1980’s in Slovenia

Prostor ◽  
2020 ◽  
Vol 28 (2 (60)) ◽  
pp. 346-359
Author(s):  
Vesna Lovec ◽  
Miroslav Premrov ◽  
Vesna Žegarac Leskovar
Keyword(s):  
Energy Efficiency ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Environmental Quality ◽  
Indoor Air ◽  
Energy Efficient ◽  
Indoor Environmental Quality ◽  
Technical Issue ◽  
Current Case

The majority of kindergartens situated in the territory of former Yugoslavia need renovation. Apart from their enhanced energy efficiency, renovated buildings will presumably offer better indoor environmental quality. According to the current case study, children using a classroom with new windows installed are exposed to substantially poorer indoor air quality due to airtightness and improper ventilation, which calls attention to a vital technical issue of the current renovation process.

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 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 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>

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