Indoor Air quality related to occupancy at an air-conditioned public building

Ponsoni, Karina; Raddi, Maria Stella Gonçalves

doi:10.1590/s1516-89132010000100013

Cited by 20 publications

(9 citation statements)

References 13 publications

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“…Hence, it flows into the adjacent interior areas and drives the warm air out of these areas, which in turn intends to remove or dilute indoor airborne pollutants concentration that are coming from indoor sources. This reduces the level of contaminants and improves indoor air quality [13]. Same drop in relative humidity values is also noticed after 7:00 pm for all zones.…”

Section: Relative Humidity (%)supporting

confidence: 53%

Influence of Courtyard Ventilation on Thermal Performance of Office Building in Hot-Humid Climate: A Case Study

et al. 2018

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The influence of courtyard on the thermal performance of Development Department office building in University Malaysia Perlis (UniMAP, Pauh Putra campus) is investigated through simulation study for the effect of ventilation on indoor air temperature and relative humidity of the building. The study is carried out using EnergyPlus simulator interface within OpenStudio and SketchUp plug in software to measure both of air temperature and relative humidity hourly on 21 April 2017 as a design day. The results show that the ventilation through the windows facing the courtyard has sufficient effect on reducing the air temperature compared to the ventilation through external windows since natural ventilation is highly effective on driving the indoor warm air out to courtyard. In addition, the relative humidity is reduced due to ventilation since the courtyard has high ability to remove or dilute indoor airborne pollutants coming from indoor sources. This indicates that the presence of courtyard is highly influential on thermal performance of the building.

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Section: Relative Humidity (%)supporting

confidence: 53%

Influence of Courtyard Ventilation on Thermal Performance of Office Building in Hot-Humid Climate: A Case Study

et al. 2018

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“…Ambient indoor air temperature has been both positively [34,114,135] and inversely [56,114] correlated with indoor microbial community richness ( Fig. 1).…”

Section: Temperaturementioning

confidence: 97%

“…It is likely that this correlation has more complex underpinnings, such as the relation of temperature to relative humidity, and with seasonal or local weather conditions and the resultant change in building operations. Most of the studies noting a change in the microbial community correlated with temperature were in buildings utilizing air conditioning [34,56,135]. Given that most buildings are maintained at temperatures conducive to microbial growth, it seems less probable that temperature alone is a suitable mark for microbial control indoors, with the exception of viruses which are more sensitive to temperature [103].…”

Section: Temperaturementioning

confidence: 99%

Building upon current knowledge and techniques of indoor microbiology to construct the next era of theory into microorganisms, health, and the built environment

Horve

Lloyd

Mhuireach

et al. 2019

J Expo Sci Environ Epidemiol

114

103

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In the constructed habitat in which we spend up to 90% of our time, architectural design influences occupants' behavioral patterns, interactions with objects, surfaces, rituals, the outside environment, and each other. Within this built environment, human behavior and building design contribute to the accrual and dispersal of microorganisms; it is a collection of fomites that transfer microorganisms; reservoirs that collect biomass; structures that induce human or air movement patterns; and space types that encourage proximity or isolation between humans whose personal microbial clouds disperse cells into buildings. There have been recent calls to incorporate building microbiology into occupant health and exposure research and standards, yet the built environment is largely viewed as a repository for microorganisms which are to be eliminated, instead of a habitat which is inexorably linked to the microbial influences of building inhabitants. Health sectors have re-evaluated the role of microorganisms in health, incorporating microorganisms into prevention and treatment protocols, yet no paradigm shift has occurred with respect to microbiology of the built environment, despite calls to do so. Technological and logistical constraints often preclude our ability to link health outcomes to indoor microbiology, yet sufficient study exists to inform the theory and implementation of the next era of research and intervention in the built environment. This review presents built environment characteristics in relation to human health and disease, explores some of the current experimental strategies and interventions which explore health in the built environment, and discusses an emerging model for fostering indoor microbiology rather than fearing it.

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“…Thus, the ventilation rate and sources of fresh air inside mosques are important factors that need to be considered. According to Mumovic et al (2009) and Ponsoni and Raddi (2010), CO 2 levels inside a building can be controlled by increasing the ventilation rate and sources of fresh air. The high CO 2 level during the Friday prayer must be monitored because it could exert adverse effects on human health.…”

Section: Resultsmentioning

confidence: 99%

Compliance of Indoor Air Contaminants within the Main Prayer Halls of Mosques in Malacca with Malaysia's Indoor Air Quality Standard

Rasli¹,

Ismail²,

Ramli³

et al. 2019

JCDC

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Results show that the mean concentrations of the nine indoor air contaminants in M1, M2 and M3 did not exceed ICOP's limits, except for the ozone concentration in M3 that exceeded the limit at 0.150 ppm. We conclude that the concentration levels of indoor air contaminants in the studied mosques are in compliance with Malaysia's ICOP and the non-compliance issue with regard to the ozone concentration in one of the mosques is due to the mosque's location in a busy coastal and marine area.

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Indoor Air quality related to occupancy at an air-conditioned public building

Abstract: To characterize the influence of occupancy on the indoor air quality, a public office building with air-conditioning system was selected for this study.

Cited by 20 publications

References 13 publications

Influence of Courtyard Ventilation on Thermal Performance of Office Building in Hot-Humid Climate: A Case Study

Influence of Courtyard Ventilation on Thermal Performance of Office Building in Hot-Humid Climate: A Case Study

Building upon current knowledge and techniques of indoor microbiology to construct the next era of theory into microorganisms, health, and the built environment

Compliance of Indoor Air Contaminants within the Main Prayer Halls of Mosques in Malacca with Malaysia's Indoor Air Quality Standard

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