Spaxel binned MUSE data cube revealing (from left to right) the Hα flux (panel 1), the Balmer decrement-based $E{(B-V)}_{\mathrm{host}}^{\mathit{gas}}$ color excess map (panel 2), and the O3N2 gas phase metallicity maps computed using the Marino et al. (2013, panel 3) and Dopita et al. (2016, panel 4) calibrations. The position of SN 2016adj is indicated in each panel by a star, crosses reveal H II-region peaks, and the bright foreground star in close proximity of the position of SN 2016adj is masked by a orange circle.