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Fig. 2

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Evolution of the dust-to-metal and dust-to-gas ratios with the total dust-corrected metallicity of the gas. Top: Dust-to-metal ratio as a function of the total dust-corrected gas metallicity [M/H]tot. Bottom: Dust-to-gas ratio as a function of the total dust-corrected gas metallicity [M/H]tot. The symbols are the same as in Fig. 1. For the Milky Way, metallicities [M/H]tot are from Cia et al. (2021). There is a clear increasing trend in the DTM and DTG ratios with [M/H]tot and a tight correlation between DTG and [M/H]tot. The blue shaded regions show the analytic dust production and evolution model tracks from Mattsson (2020) with varying the parameter δ = ϵ from 1 to 16.

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