Removal mechanism of nitrogen dioxide using woody plant essential oils

作为去除生活环境中存在的多种环境污染物的方法，含有精油的气味物质有望成为排放到空气中的一种方法。结果表明，香椿叶油具有有效的脱氮作用，并从香椿叶油中分离出月桂烯和水仙烯作为脱氮活性成分。此外，利用扫描探针显微镜(SPM)、粒子计数器、气溶胶-MS(AMS)和热重分析-质谱仪(PTR-MS)发现，在与二氧化氮和精油反应生成粒径在800 nm或以上的颗粒物的瞬间，该物质可被检测到。

As the removal methods for many kinds of environmental pollutants ,which exist in our living environment, Odorants containing essential oil are expected to be one such method involving emissions into the air. It was found that the leaf oil of Todomatsu (Abies sachalinensis) has a function for removing nitrogen dioxide effectively, and myrcene and phellandrene were isolated as active removal components from todomatsu leaf oil. Furthermore, it was found that after a reaction with nitrogen dioxide and essential oil which produce particulate matter generated with particle sizes of 800 nm or more for an instant by making full use of Scanning Probe Microscope(SPM), Particle counter, Aerosol-MS(AMS) and PTR-MS.