Fig. 1From: In situ polymerization of soil organic matter by oxidative biomimetic catalysisMean weight diameter in water (MWDw) of soil before and after the catalyst-assisted oxidative polymerization treatment: control soil, soil + H2O2, soil + H2O2 + Fe-Pha. Error bars indicate standard error (n = 3), and different letters indicate significant differences at P ≤ 0.05 levelBack to article page