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. 2018 Mar 21;4(3):eaap7314. doi: 10.1126/sciadv.aap7314

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Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 1 — (A) First-order multiphase degradation rate coefficient k (s⁻¹) for laboratory schemes of Pöschl et al. (4), Kahan et al. (22), Kwamena et al. (5), and Zhou et al. (11) (table S1) and the kinetic scheme ROI-T at 50 ppb O₃. Vertical dashed line denotes 23°C. (B) Model framework of the multilayer kinetic scheme ROI-T. Red arrows show the reactions: O₃ is decomposed and forms ROI in the gas sorption layer, BaP reacts with ROI between gas sorption and surface layer, and BaP reacts with O₃ in the bulk. Green arrows show the RH/T-dependent mass transport: O₃ from gas sorption to bulk layer, BaP from bulk to surface layer.