Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/79255
Title: Impact of asthma, exposure period, and filters on human responses during exposures to ozone and its initiated chemistry products
Authors: Fadeyi, M. O.
Tham, K. W.
Wu, W. Y.
Keywords: DRNTU::Engineering::Environmental engineering::Environmental pollution
Issue Date: 2014
Source: Fadeyi, M. O., Tham, K. W., & Wu, W. Y. (2014). Impact of asthma, exposure period, and filters on human responses during exposures to ozone and its initiated chemistry products. Indoor air, 25(5), 512-522.
Series/Report no.: Indoor air
Abstract: The impact of asthma, exposure period, and filter condition downstream of the mixing box of air-conditioning system on building occupants' perceptual response, work performance, and salivary α-amylase secretion during exposures to ozone and its initiated chemistry products is studied. The experiments were conducted in a field environmental chamber (FEC) (240 m3) simulating an office environment. Experiments were conducted during periods when the air-handling system operated with new or used pleated panel filters at constant recirculation (7/h) and ventilation (1/h) rates. Average ozone and secondary organic aerosols (ozone-initiated chemistry products) measured during non-asthmatic and asthmatic subjects' 3-h exposures in the FEC were in the ranges approximately 20–37 ppb and approximately 1.6–3 μg/m3, respectively. Asthmatic subjects' perceived odor intensity and sensory (eye, nose, and throat) irritation ratings were generally lower than those of non-asthmatic subjects, possibly explaining why asthmatic subjects accept perceived air quality more than non-asthmatic subjects. However, asthmatic subjects' perceived physiological-like symptom ratings (flu, chest tightness, and headache) and concentrations of secreted salivary α-amylase were generally higher than those of non-asthmatic subjects. Asthmatic subjects had significantly lower accuracy than non-asthmatic subjects in a task that required higher concentration although they had higher work speed. Filter condition did not make any significant difference for subjects' responses.
URI: https://hdl.handle.net/10356/79255
http://hdl.handle.net/10220/24448
DOI: 10.1111/ina.12161
Schools: School of Civil and Environmental Engineering 
Rights: © 2014 John Wiley & Sons A/S. This is the author created version of a work that has been peer reviewed and accepted for publication by Indoor Air, John Wiley & Sons Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1111/ina.12161].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

Files in This Item:
File Description SizeFormat 
Indoor air paper_MOF.pdf519.53 kBAdobe PDFThumbnail
View/Open

SCOPUSTM   
Citations 20

20
Updated on Jun 18, 2024

Web of ScienceTM
Citations 20

16
Updated on Oct 25, 2023

Page view(s) 50

623
Updated on Jun 20, 2024

Download(s) 10

347
Updated on Jun 20, 2024

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.