Fig. 2. Methyl halide fluxes from soil samples amended with different chemicals.

a Methyl bromide (CH₃Br) and b methyl chloride (CH₃Cl) fluxes from live and autoclaved soil samples under different treatments. (i) 20 ml of deionized water was added; (ii) 10 ml each of deionized water and 50 mM H₂O₂ was added; (iii) 10 ml each of deionized water and 50 mM CuSO₄ was added; (iv) 10 ml each of 50 mM H₂O₂ and 50 mM CuSO₄ at were added. The dots represent the average fluxes of two replicated incubations (n = 2) in each treatment and the upper and lower boundary of the bars represent the two individual fluxes. The inserted plots in (a) are the enlarged view of CH₃Br fluxes from soils in the first two treatments.