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Annoyance and performance of three environmentally intolerant groups during experimental challenge with chemical odors.

Österberg, Kai LU ; Persson, Roger LU ; Karlson, Björn LU and Örbaek, Palle LU (2004) In Scandinavian Journal of Work, Environment and Health 30(6). p.486-496
Abstract
OBJECTIVES: This study investigated exposure- and subject-related determinants of annoyance and performance during the chemical odor provocation of healthy persons with self-reported environmental annoyance. METHODS: Persons with self-reported annoyance attributed to (i) chemicals or smells (smell-annoyed, SA, N=29), (ii) electrical equipment (electrically annoyed, EA, N= 16), and (iii) both smells and electricity (generally annoyed, GA, N=39) were, together with referents (N=54), challenged with n-butyl acetate in an exposure chamber at levels far below the threshold values for neurotoxic effects and trigeminal irritation. A sequence of three air concentrations, 0.37, 1.5, and 6 ppm (1.8, 7.1, and 28 mg/m3) was used, counterbalanced... (More)
OBJECTIVES: This study investigated exposure- and subject-related determinants of annoyance and performance during the chemical odor provocation of healthy persons with self-reported environmental annoyance. METHODS: Persons with self-reported annoyance attributed to (i) chemicals or smells (smell-annoyed, SA, N=29), (ii) electrical equipment (electrically annoyed, EA, N= 16), and (iii) both smells and electricity (generally annoyed, GA, N=39) were, together with referents (N=54), challenged with n-butyl acetate in an exposure chamber at levels far below the threshold values for neurotoxic effects and trigeminal irritation. A sequence of three air concentrations, 0.37, 1.5, and 6 ppm (1.8, 7.1, and 28 mg/m3) was used, counterbalanced within groups, together with intermittent periods of room air between each exposure level. The response measures comprised ratings of annoyance and smell intensity and reaction-time tests. RESULTS: Only the GA group showed clearly elevated ratings of smell annoyance, mucous membrane irritation, and fatigue, as well as longer reaction times, compared with the referents, in response to the challenge. No group difference was found for the smell-intensity ratings. During intermittent periods without exposure, only the GA group maintained higher ratings for mucous membrane irritation and fatigue. Reaction time and all the rating dimensions showed a positive relationship with momentary n-butyl acetate concentration, while cumulative exposure had a more limited impact on the ratings and reaction time. A suggestion effect by the chamber environment before exposure could not be demonstrated. CONCLUSIONS: The results suggest that self-reported annoyance generalized to both electrical equipment and smells is a better predictor of chemical intolerance than self-reported annoyance to smells only. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
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in
Scandinavian Journal of Work, Environment and Health
volume
30
issue
6
pages
486 - 496
publisher
Finnish Institute of Occupational Health
external identifiers
  • wos:000225922700009
  • pmid:15633599
  • scopus:11044220407
ISSN
0355-3140
language
English
LU publication?
yes
id
a0461f66-dc86-4af4-9d60-e43c04ec8fe6 (old id 133300)
alternative location
http://www.sjweh.fi/show_abstract.php?abstract_id=838
date added to LUP
2007-07-12 10:29:45
date last changed
2017-05-21 04:32:50
@article{a0461f66-dc86-4af4-9d60-e43c04ec8fe6,
  abstract     = {OBJECTIVES: This study investigated exposure- and subject-related determinants of annoyance and performance during the chemical odor provocation of healthy persons with self-reported environmental annoyance. METHODS: Persons with self-reported annoyance attributed to (i) chemicals or smells (smell-annoyed, SA, N=29), (ii) electrical equipment (electrically annoyed, EA, N= 16), and (iii) both smells and electricity (generally annoyed, GA, N=39) were, together with referents (N=54), challenged with n-butyl acetate in an exposure chamber at levels far below the threshold values for neurotoxic effects and trigeminal irritation. A sequence of three air concentrations, 0.37, 1.5, and 6 ppm (1.8, 7.1, and 28 mg/m3) was used, counterbalanced within groups, together with intermittent periods of room air between each exposure level. The response measures comprised ratings of annoyance and smell intensity and reaction-time tests. RESULTS: Only the GA group showed clearly elevated ratings of smell annoyance, mucous membrane irritation, and fatigue, as well as longer reaction times, compared with the referents, in response to the challenge. No group difference was found for the smell-intensity ratings. During intermittent periods without exposure, only the GA group maintained higher ratings for mucous membrane irritation and fatigue. Reaction time and all the rating dimensions showed a positive relationship with momentary n-butyl acetate concentration, while cumulative exposure had a more limited impact on the ratings and reaction time. A suggestion effect by the chamber environment before exposure could not be demonstrated. CONCLUSIONS: The results suggest that self-reported annoyance generalized to both electrical equipment and smells is a better predictor of chemical intolerance than self-reported annoyance to smells only.},
  author       = {Österberg, Kai and Persson, Roger and Karlson, Björn and Örbaek, Palle},
  issn         = {0355-3140},
  language     = {eng},
  number       = {6},
  pages        = {486--496},
  publisher    = {Finnish Institute of Occupational Health},
  series       = {Scandinavian Journal of Work, Environment and Health},
  title        = {Annoyance and performance of three environmentally intolerant groups during experimental challenge with chemical odors.},
  volume       = {30},
  year         = {2004},
}