Metallicity calculated over the full lines of sight as a function of distance from the Galactic centre for this work compared with literature results. The red diamonds are the results from the fit to abundance patterns for all metals, and the green and purple diamonds are fits to the refractory and volatile metals, respectively. We do not include the fits for ρ Oph A because of the limited data. The fit to the refractory metals for θ¹ Ori C is 1.7, which we do not consider as physical, so it is excluded in this plot.