Observed coupling between air mass history, secondary growth of nucleation mode particles and aerosol pollution levels in Beijing.

ABSTRACT: Atmospheric aerosols have significant effects on the climate and on human health. New particle formation (NPF) is globally an important source of aerosols but its relevance especially towards aerosol mass loadings in highly polluted regions is still controversial. In addition, uncertainties remain regarding the processes leading to severe pollution episodes, concerning e.g. the role of atmospheric transport. In this study, we utilize air mass history analysis in combination with different fields related to the intensity of anthropogenic emissions in order to calculate air mass exposure to anthropogenic emissions (AME) prior to their arrival at Beijing, China. The AME is used as a semi-quantitative metric for describing the effect of air mass history on the potential for aerosol form

SUBMITTER: Hakala S 

PROVIDER: S-EPMC8929417 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature