11:45 AM - 12:00 PM
[HQR05-11] Records of spherical carbonized particles (SCPs) in sediments from a pond in Kobe City, central Japan: Sources and history of air pollution
Keywords:spherical carbonized particles (SCPs), sediments, air pollution
One of the factors contributing to air pollution is the emission of fine particles from the high-temperature combustion of fossil fuels in heavy chemical industries, such as thermal power generation. Spheroidal carbonaceous particles (SCPs) are among the particles emitted during the high-temperature combustion of fossil fuels in industrial activities. The spatial and temporal distributions of SCPs in sediments are similar to those of other air pollutants associated with fossil fuel combustion.
In this study, we collected a sediment core from a small pond in Kobe City, which has no river inflow. We then measured SCP contents using an optical microscope and analyzed their chemical compositions using scanning electron microscopy energy dispersive X-ray spectroscopy. The sources of SCPs in the sediments were estimated by comparing the results to the history of industrial activities in adjacent areas. Most previous studies have examined SCP records in large lakes and inner bay sediments.
In this study, we collected a sediment core from a small pond in Kobe City, which has no river inflow. We then measured SCP contents using an optical microscope and analyzed their chemical compositions using scanning electron microscopy energy dispersive X-ray spectroscopy. The sources of SCPs in the sediments were estimated by comparing the results to the history of industrial activities in adjacent areas. Most previous studies have examined SCP records in large lakes and inner bay sediments.