V-band attenuation A_V due to the AGN polar dust component. Top panel: A_V is plotted against the X-ray absorbing column density N_H for sources with polar dust described either with the SMC law (red circles) or the G04 law (green points). A_V is also plotted for the 24 sources that are found to be consistent with the GB07 law (black triangles). Uncertainties on A_V measurements (1σ dispersion estimated by X-CIGALE) and N_H (16th and 84th percentiles of the distribution) are over-plotted (for only one source with SMC law randomly selected over 3). The Galactic value of A_V/N_H is indicated as a black line. Bottom panel: A_V distribution for sources described with each law.