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Atomic force micrographs of the three-dimensional surface topography of new (A, C, E, G, I) and worn (B, D, F, H, J) samples of each environmental surface type. Images represent stainless steel (A, B), acrylic polymer solid surface (C, D), high-pressure laminate (E, F), copper sheet (H, H), and solid surface with cupric oxide (I, J). Bar = 5 μm.
