The Impact of Clean Indoor Air Exemptions and Preemption Policies on the Prevalence of a Tobacco-Specific Lung Carcinogen Among Nonsmoking Bar and Restaurant Workers

Abstract

Objectives. We studied the impact of clean indoor air law exemptions and preemption policies on the prevalence of a tobacco-specific lung carcinogen—4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK)—among nonsmoking bar and restaurant workers