The historical analysis of long-range transport of atmospheric pollutants in East Asia using fly ash particles in sediment core samples obtained from closed waters

研究了中国东部封闭沃茨、日本岛屿、城市和郊区沉积物柱状样中飞灰颗粒（球形碳质颗粒（SCP）和无机灰球（IAS））、重金属、铅同位素比值和多环芳烃（PAHs）的历史变化趋势。总之，它被发现，在日本的城市地区和孤立的岛屿之间的大气污染物浓度的历史趋势有显着差异。20世纪60年代以后，在日本海和东海的偏远岛屿上观测到了东亚大气污染物远距离输送的影响。

The historical trends of fly ash particles (spheroidal carbonaceous particles (SCPs) and inorganic ash spheres (IASs)), heavy metals, lead isotope ratios, and polycyclic aromatic hydrocarbons (PAHs) contained in the sediment core samples obtained from the closed waters at East China, islands, urban and suburban regions in Japan were studied. In conclusion, it was found that there were significant differences of historical trends of the concentrations of atmospheric pollutants between urban areas in Japan and isolate islands. The influences of long-range transport of atmospheric pollution at East Asia after 1960s were notably observed at remote islands in Japan Sea and East China Sea.