Top panel: SFR (from SED fitting) distribution as a function of stellar mass. Each small circle represents a single galaxy. Large squares show the median value for the population in stellar mass bins. Error bars show the error on the median of each bin. Higher-density regions are coloured in blue while lower- density galaxies are shown in green colours. The empty symbols represent the bins considering star-forming galaxies only, with log₁₀(sSFR) >  − 11. The symbols are horizontally shifted for visualisation purposes. The vertical dotted line shows the completeness limit of our survey. Globally, we find that galaxies in higher-density regions have lower SFRs, but only when considering the entire population. When selecting star-forming galaxies, we find no difference between the median SFRs in low- and high-density environments. Bottom panel: dust-corrected [O II] luminosity distribution as a function of stellar mass. We show as small arrows the upper limits on [OII] luminosity for the galaxies for which we have no measure with sufficient S/N. Horizontal lines show three values of SFR = 1, 10, 50 M_⊙ yr⁻¹ as derived from Eq. (3). We typically find no differences between low- and high-density regions in terms of the median dust-corrected [OII] luminosity at all stellar masses probed in our sample.