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Phenol Biodegradation by Indigenous Mixed Microbial Consortium: Growth Kinetics and Inhibition

机译：土著混合微生物财团对苯酚的生物降解：生长动力学和抑制。

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This study investigated the secondary organic aerosols (SOAs) formation capability of various fragrant and Chinese herbal essential oils in the presence of ozone in a controlled-environment chamber under different test conditions. Air sampling was also conducted in two different types of spa center offering massage therapy using essential oils. The chamber study showed very strong SOAs formation capability in all fragrant essential oils tested, together with almost no SOA formation in the experiments using Chinese herbal oils. As particles smaller than 50 nm dominated the ultrafine particles (<100 nm) in number, this study speculated that SOAs from the reaction of ozone and terpenes initially formed in particle sizes smaller than 50 nm. Not only elevated level of total volatile organic compounds and limonene, but also a significant increase of ultrafine particles was found in spa centers during massage therapy. This study concludes that configuration and ventilation within spa centers can potentially affect the level of indoor air pollutants emitted during massage therapy. Therefore, indoor air quality in the environments using essential oils and the health effects caused by human exposure to volatile organic compounds and terpenes ozonolysis products, such as SOAs, in the spa centers are an area of concern.
机译：这项研究调查了在不同测试条件下，在受控环境室内存在臭氧的情况下，各种香精和中草药精油的二次有机气溶胶（SOA）形成能力。还在两个不同类型的水疗中心进行了空气采样，这些水疗中心使用精油进行按摩疗法。室内研究表明，在所有测试的香精油中，SOA的形成能力都非常强，而在使用中草药油的实验中，几乎没有SOA的形成。由于小于50 nm的颗粒在数量上占主导地位（<100 nm）的超细颗粒，这项研究推测，臭氧和萜烯反应产生的SOA最初形成的粒径小于50 nm。在按摩疗法期间，不仅在温泉中心发现总挥发性有机化合物和柠檬烯的含量升高，而且超细颗粒的显着增加。这项研究得出的结论是，水疗中心内的配置和通风可能会影响按摩疗法期间释放的室内空气污染物水平。因此，在水疗中心，使用精油的环境中的室内空气质量以及人体暴露于挥发性有机化合物和萜烯臭氧分解产品（如SOA）所造成的健康影响是一个值得关注的领域。

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