Notes. The α_CO column lists the CO luminosity to gas mass conversion factors, expressed in units of M_⊙ (K km s⁻¹ pc²)⁻¹ and deduced from the [C I]-inferred molecular gas masses for the sources with [C I](1–0) detections (Nesvadba et al. 2018, see further details in the text). The molecular hydrogen masses, μM^CO(H₂), are derived from the modeled CO(1–0) luminosities assuming α_CO = 0.8 M_⊙ (K km s⁻¹ pc²)⁻¹. Intrinsic values are corrected for the magnification factors μ_gas of Table 1. We also list the gas masses inferred for the individual kinematic components in three Planck’s dusty GEMS. The quantities δ_GDR are the gas-to-dust mass ratios deduced from the dust masses presented in C15, corrected for μ_dust, and the total molecular gas masses, M^CO(H₂). Errors include uncertainties on the line fluxes and magnification factors.