Figure 1 | Scientific Reports

Figure 1

From: Comprehensive characterization of mainstream marijuana and tobacco smoke

Figure 1

(a) Averaged aerodynamic size distributions where nonstripped, aged aerosols from smoking marijuana joints or tobacco cigarettes had average count median diameters (CMDs) of 477 nm (±95 nm) or 389 nm (±61 nm), respectively, while catalytic stripping the aged aerosols produced average CMDs of 157 nm (±15 nm) or 137 nm (±29 nm), respectively. Geometric standard deviations of the averaged log-normal fits ranged between 1.57 and 1.69. (b) Averaged mobility size distributions where nonstripped, aged aerosols from smoking marijuana joints or tobacco cigarettes had average CMDs of 410 nm (±20 nm) or 318 nm (±19 nm), respectively, while catalytic stripping the aged aerosols produced average CMDs of 110 nm (±5 nm) or 91 nm (±5 nm), respectively. Geometric standard deviations of the averaged log-normal fits ranged between 1.63 and 1.75. (c) Percent differences between size distribution parameters for either nonstripped or stripped aged smoke particles from a marijuana joint relative to a tobacco cigarette. (d) Effective densities of nonstripped and stripped aged smoke particles. For (a,b), the center line and shaded regions represent each CMD and its corresponding total uncertainty, while for (c,d) the error bars represent the total uncertainties, with the exception of GSD error bars in (c) which represent its precision uncertainty.

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