Adolescent Exposure to Toxic Volatile Organic Chemicals From E-Cigarettes

Adolescent Exposure to Toxic Volatile Organic Chemicals From E-Cigarettes.

BACKGROUND There is an urgent need to understand the safety of e-cigarettes with adolescents. We sought to identify the presence of chemical toxicants associated with e-cigarette use among adolescents. METHODS Adolescent e-cigarette users (≥1 use within the past 30 days, ≥10 lifetime e-cigarette use episodes) were divided into e-cigarette-only users (no cigarettes in the past 30 days, urine 4...

Source apportionment of exposure to toxic volatile organic compounds using positive matrix factorizationSource apportionment of exposure to toxic volatile organic compounds using positive matrix factorization

Data from the Total Exposure Assessment Methodology studies, conducted from 1980 to 1987 in New Jersey (NJ ) and California (CA) , and the 1990 California Indoor Exposure study were analyzed using positive matrix factorization, a receptor -oriented source apportionment model. Personal exposure and outdoor concentrations of 14 and 17 toxic volatile organic compounds (VOCs) were studied from the ...

Legislating Acceptable Cancer Risk from Exposure to Toxic Chemicals

E-cigarettes, Cigarettes, and the Prevalence of Adolescent Tobacco Use.

BACKGROUND Adolescent e-cigarette use has increased rapidly in recent years, but it is unclear whether e-cigarettes are merely substituting for cigarettes or whether e-cigarettes are being used by those who would not otherwise have smoked. To understand the role of e-cigarettes in overall tobacco product use, we examine prevalence rates from Southern California adolescents over 2 decades. MET...

Chemical Dosimetry inBiological Monitoring of Exposure to Toxic Chemicals

Biological monitoring of exposure to chemicals has the objective of defining the so-called 'internal dose' or 'internal exposure level', and has been attempted by a variety of experimental approaches. Two categorical types of measurements can be made for this purpose: (1) measurement of concentrations of chemicals (or their metabolites) in body fluids or excreta; or (2) measurement of toxicolog...