Study on nitrated PAHs formed from reactions on the surface of Asian dust particles

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Polycyclic aromatic hydrocarbons (PAHs) and substituted PAHs such as nitro-PAHs are suspected to concern effects on human health such as mutagenicity, carcinogenicity, endocrine disrupting activities, and so on. Several kinds of the PAH derivatives might be formed via atmospheric reactions of the parent PAHs with inorganic gases such as nitrogen oxides on the Asian dust particles, which is transported from the continent of China to Japan. To test this hypothesis, in this study, we performed chemical reaction experiments of PAHs on the Asian dust particle surface using a reaction-chamber, and investigated the formation of substituted PAHs on the particles.