Elements including metals in the atomizer and aerosol of disposable electronic cigarettes and electronic hookahs
Four brands of disposable ECs/EHs were evaluated: (A, B) Square 82, (C, D) Luxury Lites, (E, F) V2 Cigs, and (G, H) BluCig. (A, C, E, G) Represent the concentration of elements in the first 60 puffs of each brand. (B, D, F, H) Represent the concentration of elements in the last 60 puffs of each brand. The total concentration of all elements is given at the bottom of the pie chart for each brand. Numbers adjacent to each element are concentrations in μg/10 puffs. All concentrations are the average of three independent aerosol samples from three different ECs/EHs, and only elements higher than or equal to 0.002 μg/10 puffs are presented in this figure.