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. 2021 Mar 4;290:102400. doi: 10.1016/j.cis.2021.102400

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Fig. 4 — The lability parameter, ℒ (Eq. (13)), computed for virions sorbed on airborne particulate matter (PM) as a function of the radius of PM, r_PM (in m). Curves are shown for a Henry adsorption coefficient, K_H,PM, of 10⁻⁴ m (black curve) and 10⁻³ m (blue dashed curve), with $\bar{δ}$ = 10⁻⁴ m (see text for explanation).