Fig. 1From: Identifying the reactive sites of hydrogen peroxide decomposition and hydroxyl radical formation on chrysotile asbestos surfacesPreconditioned fibers. From left to right: DFOB-altered fibers with 0, 3 and 30 μmol g− 1 Fe, respectively, blank-altered fibers with 0 μmol g− 1 Fe and DFOB-altered fibers with 300 μmol g− 1 FeBack to article page