[AAS06-P14] Magnetic investigations of atmospheric aerosol particles in Noto region
Keywords:Environmental Magnetism, aerosol, Asian dust, heavy metals
Magnetic measurement, is a rapid, non-destructive and cost-effective means to, identify the amount and mineralogy of magnetic particles often contained in anthropogenic pollutants. There are few studies which applied magnetic measurement on aerosol samples collected in polluted urban environments, however, it is unclear whether it can be applied also on samples collected in remote environments where pollution level is expected to be much lower. In Japan, it is often subject to transboundary air pollution accompanied by Asian dust (Kosa). Therefore, the purpose of this study was to apply magnetic investigations on the filter samples collected in Noto region directly under the influence of continental transboundary pollution, to acquire the basic dataset and verify the applicability of the magnetic data as an indicator of the health effect of the aerosol particles.
Magnetic properties of 93 samples collected between Aug, 2014 and Sep, 2016 at Noto region were investigated. In this presentation we report the results obtained by stepwise isothermal remanent magnetization acquisition experiment, stepwise alternating field demagnetization experiment and low-temperature magnetic measurement.