Dithiothreitol-Measured Oxidative Potential of Size-Segregated Particulate Matter in Fukuoka, Japan: Effects of Asian Dust Events.

ABSTRACT: Oxidative potential is an important property of particulate matter (PM) that has been regarded as a more health-relevant metric than PM mass. We investigated the oxidative potential of size-segregated PM and effects of Asian dust events in Fukuoka, western Japan. Aerosol particles with diameters smaller and larger than 2.5 μm (fine and coarse particles, respectively) were collected continually from 16 March through 26 May 2016. The oxidative potential was analyzed using dithiothreitol (DTT) assay; chemical components of PM were also found. Air-volume normalized oxidative potential quantified by DTT assay (DTTv) was significantly higher during Asian dust events than during nondust-event days. The mean DTTv of fine and coarse particles during Asian dust events were, respectively, 1.5 and 2.7

SUBMITTER: Nishita-Hara C 

PROVIDER: S-EPMC7007159 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature