Space and time distribution of subsurface H2 concentration in so-called “fairy circles”: Insight from a conceptual 2-D transport model

Open Access

Fig. 2

Continuous leakage of H₂ with the source at 30 m and without active bacteria in the soil. Soil gas permeability is 10 Da. A. Snapshots of an H₂ propagation. The color from blue to red indicates the [H₂] of the propagating gas normalized to the source [H₂]. B. [H₂] distribution as a function of time at 80-cm depth.

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