气候变化领域集成服务门户(CCPortal): Indoor use of essential oils: Emission rates; exposure time and impact on air quality

CCPortal

DOI	10.1016/j.atmosenv.2020.117863
	Indoor use of essential oils: Emission rates; exposure time and impact on air quality
	Angulo-Milhem S.; Verriele M.; Nicolas M.; Thevenet F.
发表日期	2021
ISSN	13522310
卷号	244
英文摘要	Essential-oils have attracted increasing interest due to their performance as inhibitors of the metabolic functions of microorganisms. They are widely promoted as easy-to-use compounds to improve indoor air quality and are associated with purifying actions. This study aims to assess the emissions of molecules contained in essential-oils in confined environments by employing different diffusion mechanisms under realistic conditions. Terpenes and carbonyl compounds are the typical identified and quantified compounds emitted from the tea tree essential-oil. Contrasted concentration levels and kinetic parameters are evidenced depending on the mechanism of diffusion, and the concentration levels can exceed the recommended critical exposure level by one order of magnitude. Additionally, the relative contributions of individual terpenes in the gas phase vary throughout the diffusion process for all the investigated diffusers. To assess the duration of the impact of essential-oil diffusion on indoor air quality, the mass emission rates of individual terpenes are estimated. This study shows that, depending on the diffusion mechanism, the impact of essential-oil diffusion in confined environments varies from 5 h to 60 days. The proposed experimental approach and the results provided offer the first insights into the definition of risk scenarios and human exposure to essential-oils in indoor environments. © 2020 Elsevier Ltd
英文关键词	Emission; Essential oils; Indoor air; Indoor diffusion; Terpenes
语种	英语
scopus关键词	Air quality; Carbonyl compounds; Diffusion; Indoor air pollution; Risk perception; Tea; Terpenes; Concentration levels; Confined environment; Diffusion mechanisms; Experimental approaches; Indoor air quality; Indoor environment; Realistic conditions; Relative contribution; Essential oils; 2,4 dinitrophenylhydrazine; alpha phellandrene; alpha thujene; aromativorans; beta pinene; carbonyl derivative; cineole; delta cadinene; essential oil; limonene; monoterpene; myrcene; pinene; sesquiterpene derivative; tea tree oil; terpene; terpinen 4 ol; terpinene; terpineol; terpinolene; unclassified drug; varidiflorene; air quality; chemical compound; concentration (composition); detection method; essential oil; indoor air; microorganism; pollution exposure; aerosol; air quality; ambient air; Article; ceramics; chemical composition; diffusion; evaporation; gas; indoor environment; nebulization; priority journal; vapor pressure; Melaleuca alternifolia
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144889
作者单位	IMT Lille Douai, Université de Lille, SAGE, Lille, F-59000, France; Centre Scientifique et Technique du Bâtiment (CSTB), Grenoble, F-38000, France
推荐引用方式 GB/T 7714	Angulo-Milhem S.,Verriele M.,Nicolas M.,et al. Indoor use of essential oils: Emission rates; exposure time and impact on air quality[J],2021,244.
APA	Angulo-Milhem S.,Verriele M.,Nicolas M.,&Thevenet F..(2021).Indoor use of essential oils: Emission rates; exposure time and impact on air quality.Atmospheric Environment,244.
MLA	Angulo-Milhem S.,et al."Indoor use of essential oils: Emission rates; exposure time and impact on air quality".Atmospheric Environment 244(2021).