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Modeling indoor air pollution of outdoor origin in homes of SAPALDIA subjects in Switzerland

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Title Modeling indoor air pollution of outdoor origin in homes of SAPALDIA subjects in Switzerland
 
Creator MEIER, R
SCHINDLER, C
EEFTENS, M
AGUILERA, I
DUCRET-STICH, RE
INEICHEN, A
DAVEY, M
PHULERIA, HC
PROBST-HENSCH, N
TSAI, MY
KUNZLI, N
 
Subject FINE PARTICULATE MATTER
SHORT-TERM MORTALITY
NITROGEN-DIOXIDE
ULTRAFINE PARTICLES
PERSONAL EXPOSURE
EUROPEAN CITIES
BLACK SMOKE
PM2.5
DETERMINANTS
ENVIRONMENTS
Indoor air pollution
Multivariable regression models
Particulate matter
Particle number concentration
Ultrafine particles
Nitrogen dioxide
SAPALDIA
Switzerland
 
Description Given the shrinking spatial contrasts in outdoor air pollution in Switzerland and the trends toward tightly insulated buildings, the Swiss Cohort Study on Air Pollution and Lung and Heart Diseases in Adults (SAPALDIA) needs to understand to what extent outdoor air pollution remains a determinant for residential indoor exposure. The objectives of this paper are to identify determining factors for indoor air pollution concentrations of particulate matter (PM), ultrafine particles in the size range from 15 to 300 nm, black smoke measured as light absorbance of PM (PMabsorbance) and nitrogen dioxide (NO2) and to develop predictive indoor models for SAPALDIA. Multivariable regression models were developed based on indoor and outdoor measurements among homes of selected SAPALDIA participants in three urban (Basel, Geneva, Lugano) and one rural region (Wald ZH) in Switzerland, various home characteristics and reported indoor sources such as cooking. Outdoor levels of air pollutants were important predictors for indoor air pollutants, except for the coarse particle fraction. The fractions of outdoor concentrations infiltrating indoors were between 30% and 66%, the highest one was observed for PMabsorbance. A modifying effect of open windows was found for NO2 and the ultrafine particle number concentration. Cooking was associated with increased particle and NO2 levels. This study shows that outdoor air pollution remains an important determinant of residential indoor air pollution in Switzerland. (C) 2015 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2016-01-14T13:42:05Z
2016-01-14T13:42:05Z
2015
 
Type Article
 
Identifier ENVIRONMENT INTERNATIONAL, 82,85-91
0160-4120
1873-6750
http://dx.doi.org/10.1016/j.envint.2015.05.013
http://dspace.library.iitb.ac.in/jspui/handle/100/17642
 
Language en