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Map of East Asia, the regional focus of this study, with Gosan station (Jeju Island, Korea), the measurement site used in this study, shown in black. Also shown in dots are locations of aluminum smelters, in red, researched for this study (see discussions in Section 4.3.1), and semiconductor foundry locations, in blue, adopted from Mühle et al. (2019). Color scale represents transport model sensitivities estimated using FLEXPART for 2008 to Gosan (see Section 4.2 for details).
