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Calculated concentration profiles (a) and concentration dependence of hydroxyl radicals on the REM surface (cHOS) on the concentration of organic compounds cR (b). Parameters used in the calculations: j = 300 A·m−2; DHO = 2.2 × 10−9 m2·s−1, kHO = 5.5 × 106 m3mol−1·s−1, kΣ = 6.5 × 106 m3mol−1·s−1, α = 28. The arrow represents an increment of the concentration of organic compounds: cR = 0.1, 0.5, 1, 2 mM.
