Fig 2. Computational approach to assess lifetime of key RONS.

(a) flow-chart showing modelling approach to assess transport of long-lived reactive species from plasma region, (b) and (c) show calculated species densities as a function of distance downstream of the plasma generating electrode, with (b) emphasising the rapid drop in short-lived species densities close to the SBD electrode and (c) emphasising the downstream propagation of long-lived species between the direct and indirect enclosures.