Box plot for the ratio of integrated intensity maps I_TURB /I_UNIF for the case of the magnetic field perpendicular to the line of sight, where I_TURB is the integrated intensity map for the full post-processed simulation and I_UNIF is the intensity map assuming a constant hydrogen density (and therefore constant molecular abundance) along the line of sight. For each molecule we have two box plots: the left one corresponds to the chemical network at 0.1 Myr, and the right one at 1 Myr. The y-axis has been scaled so that the main box ranging from quartiles Q₁ (25%) to Q₃ (75%) is always shown and differences among all molecules can be appreciated, although in some cases the whiskers extend outside the plot. This figure corresponds to the case where the line of sight is perpendicular to the mean magnetic field direction. An analogous figure for the line of sight parallel to the magnetic field is provided in Appendix D.