Predictors of indoor air concentrations in smoking and non-smoking residences.
Indoor concentrations of air pollutants (benzene, toluene, formaldehyde, acetaldehyde, acrolein, nitrogen dioxide, particulate matter, elemental carbon and ozone) were measured in residences in Regina, Saskatchewan, Canada. Data were collected in 106 homes in winter and 111 homes in summer of 2007, with 71 homes participating in both seasons. In addition, data for relative humidity, temperature, air exchange rates, housing characteristics and occupants' activities during sampling were collected. Multiple linear regression analysis was used to construct season-specific models for the air pollutants. Where smoking was a major contributor to indoor concentrations, separate models were constructed for all homes and for those homes with no cigarette smoke exposure. The housing characteristics and occupants' activities investigated in this study explained between 11% and 53% of the variability in indoor air pollutant concentrations, with ventilation, age of home and attached garage being important predictors for many pollutants.
Héroux
Marie-Eve
ME
Health Canada, Ottawa, Ontario, Canada. Marie-Eve.Heroux@hc-sc.gc.ca
Clark
Nina
N
Van Ryswyk
Keith
K
Mallick
Ranjeeta
R
Gilbert
Nicolas L
NL
Harrison
Ian
I
Rispler
Kathleen
K
Wang
Daniel
D
Anastassopoulos
Angelos
A
Guay
Mireille
M
MacNeill
Morgan
M
Wheeler
Amanda J
AJ
D016902:Air Pollution, Indoor; D004781:Environmental Exposure; D006798:Housing; D006801:Humans; D012525:Saskatchewan; D012907:Smoking; D011795:Surveys and Questionnaires; D013997:Time Factors