金沢大学環日本海域環境研究センター2016-2018年冬季と夏季に、中国北京及び日本海沿岸に位置し、アジア大陸起源物質の越境輸送をうける能登において、ガス・微小粒子状物質を採取し、ガス・粒子態PAHの分析を行った。4環のFluとPyrはガス・粒子態、その他の4－6環PAHは粒子体で存在していた。ガス態は夏季に多く（73－97％）、冬季には粒子態での存在が大きかった。領域化学輸送輸送モデルでガス・粒子PAHの越境輸送の季節変動及び越境輸送量を評価した。Polycyclic aromatic hydrocarbons (PAHs) are one of toxic compounds in the atmospheric particles. PAHs are semivolatile organic compounds, and can therefore exist in both particle and gas-phases. Recent year, high concentrations of PM2.5 are focus on the global scale. We investigated gas-particulated phase PAHs (9 species) were observed at China, Beijing, and Japan, Noto. These were investigated by using three dimensional chemical transport model, Regional Air Quality Model for POPs version. The model performance was investigated by the comparison with the observations. As for the gas-particle partitioning, we used Junge-Pankow model (JP) as well as Loman-Lammel model (LL). In this study, we focused on semi volatile 4-rings PAHs. Results with simulation by using JP and LL model, simulated results were consistent within factor 10 against the observed one at Beijing and Noto.研究課題/領域番号:16H05624, 研究期間(年度):2016-04-01 - 2019-03-3
