Interaction between polycyclic aromatic hydrocarbons (PAHs) and mineral grains with clarification of PAHs carrier in the atmosphere

多环芳烃 (PAHs) 与矿物颗粒之间的相互作用以及大气中 PAHs 载体的澄清

• 批准号: 17340163
• 负责人: SATO Tsutomu
• 金额: $ 8.67万
• 依托单位: Hokkaido University (2006-2007)Kanazawa University (2005)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17340163/
• 关键词: Asian dust (Kosa); PAHs; Mineral; Pan-Japan Sea; 環日本海; 越境汚染; 粘土鉱物; 多環芳香族炭化水素; エアロゾル

Long range transport of Polycyclic aromatic hydrocarbons (PAHs) with Asian dust was investigated by collecting Aerosol particles through a year from April 2003 at Kanazawa, Japan. PAHs content in Asian dust particles were highly variable in different Asian dust events. Developed kinetic model showed that sorption rate of less volatile PAHs than BaP on Asian dust particles are too low to be accumulated. The origin of those PAHs in Asian dust particles would be originally PAH-polluted soil particles around industrialized area (e.g. loess regions around industrialized area). Back trajectory analyses also showed Asian dust with high less volatile PAHs content would have derived from loess area while Asian dust with undetectable amount of PAHs would have had source region in Mongolia and northern China. The stability of Pyr (a model PAHs) on different component of Asian dust particles was investigated under controlled temperature and relative humidity (RH) condition with/without light irradiation. Sianol and aluminol catalyze PAHs decomposition in the dark with enhanced catalytic effect by rinse in RH and light irradiation. Clay minerals protect Pyr against rise in RH and light irradiation to last several days. Most realistic carrier of PAHs is clay minerals. Geologic materials contribute atmospheric circulation of PAHs over long distance than previously thought.

从2003年4月起在日本金泽采集了一年的气溶胶颗粒，研究了多环芳烃(PAHs)与亚洲沙尘的远程输送。亚洲沙尘粒子中多环芳烃的含量在不同的亚洲沙尘事件中差异很大。建立的动力学模型表明，与BaP相比，挥发性较低的PAHs在亚洲尘埃颗粒上的吸附速率太低，无法积累。亚洲沙尘颗粒中多环芳烃的来源可能是工业化地区(如工业化地区周围的黄土地区)周围受多环芳烃污染的土壤颗粒。回溯轨迹分析还表明，多环芳烃含量较高、挥发性较低的亚洲沙尘可能来自黄土地区，而多环芳烃含量未被检测到的亚洲沙尘可能起源于蒙古和中国北部。在控制温度和相对湿度(RH)的条件下，研究了PYR(一种模型多环芳烃)在不同组成的亚洲尘埃颗粒上的稳定性。硅醇和铝醇在黑暗中催化多环芳烃的分解，并通过RH漂洗和光照增强了催化效果。粘土矿物保护PYR免受相对湿度上升和持续数天的光照的影响。多环芳烃最现实的载体是粘土矿物。地质物质对远距离大气环流中多环芳烃的贡献比之前认为的要大。

项目成果

Rapid and sensitive determination of tryptophan, serotonin and psychoactive tryptamines by thin-layer chromatography/fluorescence detection.

• DOI: 10.1016/j.chroma.2007.01.061
• 发表时间: 2007-03
• 期刊: Journal of chromatography. A
• 作者: N. Kato;T. Kojima;S. Yoshiyagawa;H. Ohta;A. Toriba;Hideo Nishimura;K. Hayakawa

陸水の事典(日本陸水学会編)

陆地水百科全书（日本湖沼学会编）

• 发表时间: 2006
• 作者: Katayama;Sumie;川端善一郎他
• 通讯作者: 川端善一郎他

Long-Range Transport of Fluoride from China to Japan

从中国到日本的氟化物远距离运输

• 发表时间: 2007
• 作者: Yang;X-Y.;Yamada;M.;Tang;N.;Kameda;T. Toriba;A.;Hayakawa;K.
• 通讯作者: K.

Stability of polycyclic aromatic hydrocarbons (PAHs) on mineral surfaces

矿物表面多环芳烃 (PAH) 的稳定性

• 发表时间: 2007
• 作者: Shuji Tamamura;Tsutomu Sato;Yukie Ota;Shinya Gamou and Tetsuro Yoneda
• 通讯作者: Shinya Gamou and Tetsuro Yoneda

Adsorption of phenanthrene onto minerals coated with humic acid and their subsequent stability.

菲在腐殖酸包覆矿物上的吸附及其随后的稳定性。

• 发表时间: 2007
• 作者: Gamou;S.;Sato;T.;Tamamura;S.;Yoneda;T.
• 通讯作者: T.