Figure 2
From: Alpine-ice record of bismuth pollution implies a major role of military use during World War II
Production of Al (a) and pig iron (b) from European countries (https://www2.bgs.ac.uk/mineralsuk/statistics/worldArchive.html) scaled by emissions sensitivities estimated by FLEXPART. The dashed black lines are past EFs for F and Mn emitted by Al and pig iron productions, respectively (Table 1).
