Elsevier

Environment International

Volume 23, Issue 6, November–December 1997, Pages 851-871
Environment International

Assessment of air quality in Turin by personal monitoring of nonsmokers for respirable suspended particles and environmental tobacco smoke

https://doi.org/10.1016/S0160-4120(97)00097-4Get rights and content

Abstract

Exposure to respirable suspended particles (RSP), environmental tobacco smoke (ETS) particles, nicotine, and 3-ethenylpyridine (3-EP) was assessed in Turin for 188 subjects during February and March 1995. Personal monitors were worn over a 24-h period, each subject providing a saliva sample for cotinine analysis both prior to and following the monitoring period. Comprehensive lifestyle questionnaires were also completed before and after the 24-h monitoring period. The study comprised housewives in one group, primarily for assessing exposures in the home, and office workers in a second group to assess exposures in the workplace. A single personal monitor was worn by each participating housewife, while employed subjects wore one monitor at work and a separate monitor at home and elsewhere. Based on median 24-h time-weighted average exposures, the most highly exposed subjects to RSP, ETS particles, nicotine, and 3-EP were office workers living with smokers and employed in locations where smoking was allowed. Annualised exposures for nonsmokers living and working in smoking environments indicate that the home contribution to RSP is between 3 and 4 times that obtained from the workplace. Similarly nicotine and ETS particle contributions from the home are, respectively, 4 and 7 times more than those obtained from the workplace. Subjects living and working with smokers had the highest median saliva cotinine levels of 1.7 ng mL−1. Using a cut off level of 25 ng mL−1, up to 6.5% of subjects were found to have misreported themselves as nonsmokers.

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