Fig. 4: Iron source apportionment results based on model calculations with iron isotope ratios of size-segregated aerosols in Hiroshima, Japan.
From: Stable iron isotopic composition of atmospheric aerosols: An overview

Stacked bars show the results of a March and b August aerosol samples, respectively. Original data of Hiroshima size-segregated aerosol samples are from Kurisu et al.148.