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. 2021 Aug 20;33(8):087118. doi: 10.1063/5.0055547

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© 2021 Author(s).

Published under an exclusive license by AIP Publishing.

All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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FIG. 8. — Schematics show the experimental and numerical simulation results for a passenger coughing without a mask while (a) seated on the upper deck (case A1); (b) seated on the lower deck (case B1); and (c) standing on the lower deck (case C1). The top schematic illustrates the results from the surrogate aerosol experiments while the bottom schematic illustrates the results from the CFD simulations. The risk levels are color coded as red, yellow, and green for high, medium, and low risk, respectively, as per the risk bands in Figs. 1 and 2.