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.
Health Canada, Ottawa, Ontario, Canada. Marie-Eve.Heroux@hc-sc.gc.ca
Marie-Eve
ME
Héroux
Nina
N
Clark
Keith
K
Van Ryswyk
Ranjeeta
R
Mallick
Nicolas L
NL
Gilbert
Ian
I
Harrison
Kathleen
K
Rispler
Daniel
D
Wang
Angelos
A
Anastassopoulos
Mireille
M
Guay
Morgan
M
MacNeill
Amanda J
AJ
Wheeler
D016902:Air Pollution, Indoor; D004781:Environmental Exposure; D006798:Housing; D006801:Humans; D012525:Saskatchewan; D012907:Smoking; D011795:Surveys and Questionnaires; D013997:Time Factors