Relationship between the chemical component of atmospheric aerosols collected in the pan-Sea-of-Japan area and the development in the area of the boundary of China, Russia and North Korea

对富山、金泽和符拉迪沃斯托克收集的一些大气气溶胶进行了分析，以估计中国、俄罗斯和朝鲜边境地区经济活动增长之间的关系。联合国计划在这一地区进行经济发展，称为“大图们江计划”。但由于朝鲜经济状况不佳，开发实际上是在符拉迪沃斯托克郊区和中国东北地区进行的。因此，我们重点研究了符拉迪沃斯托克郊区和中国东北地区的经济增长与富山、金泽、符拉迪沃斯托克和辽宁省大气气溶胶化学成分的关系。东北部分地区大气颗粒物中多环芳烃（PAHs）和硝基多环芳烃（N-PAHs）浓度比东京高出10倍以上，表明东北地区主要能源来源为燃煤。这可能导致气溶胶中多环芳烃和n -多环芳烃浓度较高。这些地区能源来源的变化或燃烧系统的发展将有助于降低浓度。在3年的研究期间，我们无法证实浓度的下降。由于研究期间俄罗斯政策的变化，我们无法继续将在俄罗斯采集的一些样本带到日本。最后，我们分析了在俄罗斯政治变革之前在符拉迪沃斯托克收集的一个样本，我们比较了在富山收集的气溶胶样本的分析数据，这些样本是用日本的ICP光谱法和俄罗斯的XRDF分析的。结果将在报告中公布。

Some atmospheric aerosols collected in Toyama, Kanazawa and Vladivostok were analyzed to estimate the relationship between the growth of economic activities in the boundary area of China, Russia and North Korea. The United Nations planned the economic development in this area called "The Greater Tumen Initiative". But because of the bad economic situation of North Korea, the development really carried out in the area of Vladivostok suburbs and northeastern China. So, we had focused on the study of the relationship between the economic growth of Vladivostok suburb area and northeastern China area, and the chemical components of atmospheric aerosols in Toyama, Kanazawa, Vladivotok and Liaoning Province.Concentration of polycyclic aromatic hydrocarbons (PAHs) and nitro polycyclic aromatic hydrocarbons (N-PAHs) in the airborne particulate collected in some places in northeastern China showed more than 10 times higher than those of Tokyo, suggesting that main energy source in northeastern China are coal burning. This may resulted in the high concentration of PAHs and N-PAHs in the aerosols. Changes in the energy source or the development of combustion system in these area will contribute to the decrease in the concentrations. In 3 years of the research period, we could not confirm the decrease of the concentrations.Because of the changes in the Russian policy during the research period, we could not continue bringing out some samples collected in Russia to Japan. So finally, we analyzed a sample which was collected in Vladivostok before the political change in Russia, and we have compared the data on the analysis of the aerosol samples collected in Toyama which were analyzed by ICP spectrometry in Japan and XRDF in Russia. The results will be published in the report.