Introduction The aims of this study were to characterize particle size in a thirdhand smoke
(THS) aerosol and measure the effects of controlled inhalational exposure to THS on …

Tobacco smoke residues lingering in the indoor environment, also termed thirdhand smoke
(THS), can be a source of long-term exposure to harmful pollutants. THS composition is …

Introduction Thirdhand cigarette smoke is the fraction of cigarette smoke that remains in the
environment long after a cigarette is extinguished. Methods The Truth Tobacco Industry …

The validity of urinary nicotine and its metabolites as a biomarker of exposure to
environmental tobacco smoke (ETS) has been investigated. After exposure to ETS, urine …

Background: Smokeless tobacco is an efficient delivery vehicle for nicotine and can contain
significant amounts of carcinogens. However, few studies have examined factors that might …

Background: There is broad consensus regarding the health impact of tobacco use and
secondhand smoke exposure, yet considerable ambiguity exists about the nature and …

Urinary excretion of nicotine and its five major metabolites (nicotine-N-glucuronide, cotinine,
cotinine-N-glucuronide, trans-3′-hydroxycotinine, and trans-3′-hydroxycotinine-O …

Introduction: The causal relationship between tobacco smoking and a variety of cancers is
attributable to the carcinogens that smokers inhale, including tobacco-specific nitrosamines …

Background A growing body of evidence shows that secondhand cigarette smoke
undergoes numerous chemical changes after it is released into the air: it can adsorb to …

The contamination of indoor nonsmoking environments with thirdhand smoke (THS) is an
important, poorly understood public health concern. Real-time THS off-gassing from …