Fig. 1: Iron isotopic variations (δ56Fe, by reference to the IRMM-014 standard, shown as shadow bar) of natural and anthropogenic (pyrogenic) aerosol sources. | npj Climate and Atmospheric Science

Fig. 1: Iron isotopic variations (δ56Fe, by reference to the IRMM-014 standard, shown as shadow bar) of natural and anthropogenic (pyrogenic) aerosol sources.

From: Stable iron isotopic composition of atmospheric aerosols: An overview

Fig. 1: Iron isotopic variations (δ56Fe, by reference to the IRMM-014 standard, shown as shadow bar) of natural and anthropogenic (pyrogenic) aerosol sources.

Natural sources include igneous rocks125, soils148,162, loess163,164, river water114,124, sea water52,134,165, and higher plants138. Anthropogenic (pyrogenic) sources include metallic brake dust143, vehicle exhaust141, solid waste incineration141,146, coal fly ash128,146, biomass burning140, and steel manufacturing142,147.

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