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Pollutant concentrations within households in Lao PDR and association with housing characteristics and occupants' activities

Morawska, Lidia, Mengersen, Kerrie, Wang, Hao, Tayphasavanh, Fengthong, Darasavong, Kongkeo , & Holmes, Nicholas S. (2011) Pollutant concentrations within households in Lao PDR and association with housing characteristics and occupants' activities. Environmental Science and Technology, 45(3), pp. 882-889.

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Abstract

The paper presents the results of a study conducted to investigate indoor air quality within residential dwellings in Lao PDR. Results from PM 10, CO, and NO2 measurements inside 167 dwellings in Lao PDR over a five month period (December 2005-April 2006) are discussed as a function of household characteristics and occupant activities. Extremely high PM10 and NO2 concentrations (12 h mean PM10 concentrations 1275 ± 98 μg m-3 and 1183 ± 99 μg m-3 in Vientiane and Bolikhamxay provinces, respectively; 12 h mean NO2 concentrations 1210 ± 94 μg m-3 and 561 ± 45 μg m-3 in Vientiane and Bolikhamxay, respectively) were measured within the dwellings. Correlations, ANOVA analysis (univariate and multivariate), and linear regression results suggest a substantial contribution from cookingandsmoking.The PM10 concentrations were significantly higher in houses without a chimney compared to houses in which cooking occurred on a stove with a chimney. However, no significant differences in pollutantconcentrations were observed as a function of cooking location. Furthermore, PM10 and NO2 concentrations were higher in houses in which smoking occurred, suggestive of a relationship between increased indoor concentrations and smoking (0.05 < p < 0.10). Resuspension of dust from soil floors was another significant source of PM10 inside the house (634 μg m-3, p < 0.05).

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3 citations in Scopus
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3 citations in Web of Science®

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ID Code: 48642
Item Type: Journal Article
Keywords: Housing characteristic, Indoor air quality, Indoor concentration, Pollutant concentration, Engineering controlled terms
DOI: 10.1021/es102294v
ISSN: 1520-5851 (online) 0013-936X (print)
Subjects: Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Current > Schools > School of Mathematical Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Past > Schools > School of Physical & Chemical Sciences
Copyright Owner: Copyright 2010 American Chemical Society
Deposited On: 15 Feb 2012 22:26
Last Modified: 29 Jun 2014 22:10

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