Anthropogenic iron oxide aerosols enhance atmospheric heating.

ABSTRACT: Combustion-induced carbonaceous aerosols, particularly black carbon (BC) and brown carbon (BrC), have been largely considered as the only significant anthropogenic contributors to shortwave atmospheric heating. Natural iron oxide (FeO_x) has been recognized as an important contributor, but the potential contribution of anthropogenic FeO_x is unknown. In this study, we quantify the abundance of FeO_x over East Asia through aircraft measurements using a modified single-particle soot photometer. The majority of airborne FeO_x particles in the continental outflows are of anthropogenic origin in the form of aggregated magnetite nanoparticles. The shortwave absorbing powers (P_abs) attributable to FeO_x and to BC are calculated on the b

SUBMITTER: Moteki N 

PROVIDER: S-EPMC5440854 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature