Hourly Sampling of PM_<2.5> at an AERONET site in Higashi-Osaka, Japan : Dust Events During Spring 2006

To monitor urban atmospheric particles, we have undertaken simultaneous measurements of aerosols and suspended particulate matter (SPM) at Kinki University Campus, Higashi–Osaka, Japan, since 2004. The largest dust event recorded during our long-term observations was detected during the spring of 2006. We also examined the relationship between PM_ concentrations and aerosol properties obtained from radiometry using a multi-spectral photometer located at a NASA/AERONET station. We found a linear correlation between aerosol optical thickness and PM_ concentrations for both ordinary days and days with dust events. This fact indicates that aerosol characteristics can be estimated from SPM data, and vice versa. Combining radiometric aerosol information with surface-level particulate mass measurements is useful in studying air quality and aerosol properties.本文データは一部CiNiiから複製したものである