“…The factory patterns represent the former lead factories established in the bay of Marseille in the 19th century. Figure adapted(Arnaud et al, 2021;Fraysse et al, 2014;Millet et al, 2018) with lead and silver factories in orange; glass factories in blue; oil factories in grey; tartaric acid factories in green; sulfur factories in yellow; and soda factories in purple.…”