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Exposure Assessment Of Ultrafine Particles And Hazardous Chemicals In Electronic Cigarettes, Oluwabunmi Magret Dada

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The widespread use of electronic cigarettes (e-cig) among youths and adolescents is a growing public health problem due to exposures to harmful byproducts formed during heating. These byproducts include particulate matter, benzene, and toluene. However, the mechanisms and variables governing their formation including the chemical content of e-cig liquid (e-liquid) are not fully understood. This study aimed to assess exposures to particulate matter, benzene, and toluene in e-cig vapors (e-vapors) and their coupling to e-liquid chemical content. A novel nuclear magnetic resonance spectroscopy method was developed to characterize e-liquids (propylene glycol, glycerol, and nicotine) and the functional content of flavorings. …