Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions

Laboratory usually refers to a room or building equipped with chemicals and biological agents for scientific experimentation and research. Due to its own indoor hazards and its cause of health implications, it is an urge to assess and to understand the physical indoor air quality (IAQ) characteristi...

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Main Authors:	A. H., Hazrin, A. A., Anis Syazana, Nordin, Noor Faizul Hadry, A., Norhidayah, Mohd. Aris, Mohd Shukri
Format:	Article
Language:	English
Published:	Universiti Teknologi Malaysia 2015
Subjects:	T Technology (General)
Online Access:	http://irep.iium.edu.my/47322/ http://irep.iium.edu.my/47322/ http://irep.iium.edu.my/47322/ http://irep.iium.edu.my/47322/1/6705-18434-1-SM.pdf

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recordtype	eprints
spelling	iium-473222016-07-15T01:07:52Z http://irep.iium.edu.my/47322/ Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions A. H., Hazrin A. A., Anis Syazana Nordin, Noor Faizul Hadry A., Norhidayah Mohd. Aris, Mohd Shukri T Technology (General) Laboratory usually refers to a room or building equipped with chemicals and biological agents for scientific experimentation and research. Due to its own indoor hazards and its cause of health implications, it is an urge to assess and to understand the physical indoor air quality (IAQ) characteristics in the laboratory and the variables affecting the degree of exposure to occupants. The main objectives of this study was aimed to assess and to compare the physical IAQ characteristics and airborne pollutants including particulate matters (PM) and gaseous pollutants between laboratories, to identify microbial contaminants via bacterial counts as well as scientific bacterial-kits species identification and to correlate the relationship of physical IAQ characteristics, airborne pollutants and microbial contaminants between different laboratory settings within the same building which are Natural Product (NP) laboratory, Plant Tissue Culture (PTC) laboratory, and Microbiology laboratory. The physical IAQ characteristics and airborne PM was measured using VelociCalc multi-function ventilation meter 9565 and DustMate environmental dust detector respectively. Surface Air System Indoor Air Quality (SAS IAQ) was used to capture the microbial contaminants and after that bacterial counting and identification were done. The scientific method protocol and standard reference limits were compared based on Industrial Code of Practice on Indoor Air Quality (ICOP) (2010) regulated by the Department of Occupational Safety and Health (DOSH). The temperature of PTC laboratory, velocity of NP laboratory and Microbiology laboratory, the respirable particulate matter (PM) of all three laboratories and Colony Forming Unit (CFU) count of PTC and NP laboratory exceeded the standard limit regulated by DOSH. This study demonstrated that Gemella morbillorum is the common bacterial species available in the environment with poor IAQ and there is a significant relationship between physical characteristics, airborne pollutants and microbial contaminants between the different types of laboratory settings. In conclusion, priority should be given to NP laboratory as it is exposed to poor IAQ conditions and immediate action should be taken to eliminate the problems. Universiti Teknologi Malaysia 2015 Article PeerReviewed application/pdf en http://irep.iium.edu.my/47322/1/6705-18434-1-SM.pdf A. H., Hazrin and A. A., Anis Syazana and Nordin, Noor Faizul Hadry and A., Norhidayah and Mohd. Aris, Mohd Shukri (2015) Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions. Jurnal Teknologi, 77 (24). pp. 39-44. ISSN 0127–9696 E-ISSN 2180–3722 http://www.jurnalteknologi.utm.my/index.php/jurnalteknologi/article/view/6705 http://dx.doi.org/10.11113/jt.v77.6705
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	T Technology (General)
spellingShingle	T Technology (General) A. H., Hazrin A. A., Anis Syazana Nordin, Noor Faizul Hadry A., Norhidayah Mohd. Aris, Mohd Shukri Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions
description	Laboratory usually refers to a room or building equipped with chemicals and biological agents for scientific experimentation and research. Due to its own indoor hazards and its cause of health implications, it is an urge to assess and to understand the physical indoor air quality (IAQ) characteristics in the laboratory and the variables affecting the degree of exposure to occupants. The main objectives of this study was aimed to assess and to compare the physical IAQ characteristics and airborne pollutants including particulate matters (PM) and gaseous pollutants between laboratories, to identify microbial contaminants via bacterial counts as well as scientific bacterial-kits species identification and to correlate the relationship of physical IAQ characteristics, airborne pollutants and microbial contaminants between different laboratory settings within the same building which are Natural Product (NP) laboratory, Plant Tissue Culture (PTC) laboratory, and Microbiology laboratory. The physical IAQ characteristics and airborne PM was measured using VelociCalc multi-function ventilation meter 9565 and DustMate environmental dust detector respectively. Surface Air System Indoor Air Quality (SAS IAQ) was used to capture the microbial contaminants and after that bacterial counting and identification were done. The scientific method protocol and standard reference limits were compared based on Industrial Code of Practice on Indoor Air Quality (ICOP) (2010) regulated by the Department of Occupational Safety and Health (DOSH). The temperature of PTC laboratory, velocity of NP laboratory and Microbiology laboratory, the respirable particulate matter (PM) of all three laboratories and Colony Forming Unit (CFU) count of PTC and NP laboratory exceeded the standard limit regulated by DOSH. This study demonstrated that Gemella morbillorum is the common bacterial species available in the environment with poor IAQ and there is a significant relationship between physical characteristics, airborne pollutants and microbial contaminants between the different types of laboratory settings. In conclusion, priority should be given to NP laboratory as it is exposed to poor IAQ conditions and immediate action should be taken to eliminate the problems.
format	Article
author	A. H., Hazrin A. A., Anis Syazana Nordin, Noor Faizul Hadry A., Norhidayah Mohd. Aris, Mohd Shukri
author_facet	A. H., Hazrin A. A., Anis Syazana Nordin, Noor Faizul Hadry A., Norhidayah Mohd. Aris, Mohd Shukri
author_sort	A. H., Hazrin
title	Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions
title_short	Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions
title_full	Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions
title_fullStr	Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions
title_full_unstemmed	Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions
title_sort	indoor microbial contamination and its relation to physical indoor air quality (iaq) characteristics at different laboratory conditions
publisher	Universiti Teknologi Malaysia
publishDate	2015
url	http://irep.iium.edu.my/47322/ http://irep.iium.edu.my/47322/ http://irep.iium.edu.my/47322/ http://irep.iium.edu.my/47322/1/6705-18434-1-SM.pdf
first_indexed	2023-09-18T21:07:21Z
last_indexed	2023-09-18T21:07:21Z
_version_	1777411021879640064

Indoor microbial contamination and its relation to physical indoor air quality (IAQ) characteristics at different laboratory conditions

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