Nonsmoker Exposure to Secondhand Cannabis Smoke. III. Oral Fluid and Blood Drug Concentrations and Corresponding Subjective Effects

Passive cannabis smoke exposure and oral fluid testing.

Oral fluid testing for Delta(9)-tetrahydrocannabinol (THC) provides a convenient means of detection of recent cannabis usage. In this study, the risk of positive oral fluid tests from passive cannabis smoke exposure was investigated by housing four cannabis-free volunteers in a small, unventilated, and sealed room with an approximate volume of 36 m(3). Five active cannabis smokers were also pre...

Disparities and Trends in Indoor Exposure to Secondhand Smoke

Introduction: Secondhand smoke (SHS) exposure causes disease and death among nonsmokers. With a plethora of smokefree legislation implemented and a steady decrease in cigarette consumption noted over the past decade in the U.S., this study assessed trends in indoor SHS exposure among U.S. adolescents in grades 6–12 during 2000–2009. Methods: Data were obtained from the 2000–2009 National Youth ...

Cannabinoids in oral fluid following passive exposure to marijuana smoke.

The concentration of tetrahydrocannabinol (THC) and its main metabolite 11-nor-Δ(9)-tetrahydrocannabinol-9-carboxylic acid (THC-COOH) as well as cannabinol (CBN), and cannabidiol (CBD) were measured in oral fluid following realistic exposure to marijuana in a Dutch coffee-shop. Ten healthy subjects, who were not marijuana smokers, volunteered to spend 3h in two different coffee shops in Groning...

Children and Secondhand Smoke Exposure Excerpts from The Health Consequences of Involuntary Exposure to Tobacco Smoke

Secondhand Smoke Exposure and Maternal Action to Protect Children from Secondhand Smoke: Pre- and Post-Smokefree Legislation in Hong Kong

BACKGROUND Smokefree legislation may protect children from secondhand smoke (SHS) in the home from smoking parent(s). We examined the effect of the 2007 smokefree legislation on children's exposure to SHS in the home and maternal action to protect children from SHS exposure in Hong Kong. METHODS Families with a smoking father and a non-smoking mother were recruited from public clinics before ...