Oxidative Potential of Ambient Particulate Matter in Beirut during Saharan and Arabian Dust Events.

ABSTRACT: In this study, we examine the oxidative potential of airborne particulate matter (PM) in Beirut, Lebanon, as influenced by dust events originating in the Sahara and Arabian deserts. Segregated fine (< 2.5 μm) and coarse (2.5-10 μm) PM samples collected during dust events, as well as during non-dust periods, were analyzed for chemical composition, and the in vitro alveolar macrophage (AM) assay was utilized to determine the oxidative potential of both types of samples. We performed Spearman rank-order correlation analysis between individual chemical components and the oxidative potential of PM to examine the impact of the changes in PM chemical composition due to the occurrence of dust events on overall PM oxidative potential. Our findings revealed that the oxidative potential of Bei

SUBMITTER: Lovett C 

PROVIDER: S-EPMC6063373 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature