(Left) Oxygen abundance and (right) r-band surface brightness of WISE-detected (>3σ) galaxies (red) and undetected (<3σ) galaxies (blue) at 22 μm (top) and 12 μm (bottom). We only plot the member galaxies in the A2199 supercluster. Large purple circles (with WISE detection) and green squares (without WISE detection) are median values of each physical parameter and of SFR _SDSS at each bin. The error bars represent 68% (1σ) confidence intervals determined by the bootstrap resampling method.