气候变化领域集成服务门户(CCPortal): Assessing volatile organic compound sources in a boreal forest using positive matrix factorization (PMF)

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DOI	10.1016/j.atmosenv.2021.118503
	Assessing volatile organic compound sources in a boreal forest using positive matrix factorization (PMF)
	Vestenius M.; Hopke P.K.; Lehtipalo K.; Petäjä T.; Hakola H.; Hellén H.
发表日期	2021
ISSN	1352-2310
卷号	259
英文摘要	Ambient volatile organic compound (VOC) concentrations including individual monoterpenoids, sesquiterpenes (SQTs), isoprene, 2-methyl-3-buten-1-ol (MBO), methacrolein (MACR), C5–C10 aldehydes, benzene and toluene were measured in a coniferous forest in Hyytiälä, southern Finland, in April–November 2016 with 1–2 h time resolution. Positive matrix factorization (PMF) was used to resolve the major sources which were responsible for the observed ambient VOC concentrations. The most reliable results were obtained with a 10 factor solution including four anthropogenic and six biogenic sources. Three of the biogenic factors were induced by light. They were either light dependent emissions or products of photochemical reactions. Three factors appeared to be temperature dependent emissions. Biogenic emissions were clearly the most important source of the measured VOCs, but the contribution from a local sawmill was also significant. About half of the monoterpenes (MTs) could be appointed to Scots pine emissions, but the influence from the activities at a near-by sawmill and Norway spruce emissions were also found. In the case of some individual MTs (e.g. limonene), spruce emissions dominated. Spruce emissions were also mainly responsible for ambient SQTs, aldehydes, and isoprene. For anthropogenic compounds, benzene and toluene, background, and local activities were the main sources. PMF was useful in resolving the sources of ambient VOCs. © 2021 Elsevier Ltd
关键词	Ambient measurement Boreal forest PMF Sesquiterpenes Terpenes VOC
语种	英语
scopus关键词	Forestry; Isoprene; Matrix algebra; Monoterpenes; Olefins; Photochemical reactions; Toluene; Volatile organic compounds; Wood products; Ambient measurement; Ambients; Anthropogenics; Benzene and Toluene; Biogenics; Boreal forests; Compound source; Positive Matrix Factorization; Sesquiterpenes; Volatile organics; Factorization; 2 methyl 3 buten 1 ol; aldehyde; benzene; isoprene; limonene; methacrolein; monoterpene; sesquiterpene; toluene; unclassified drug; volatile organic compound; anthropogenic source; boreal forest; BTEX; coniferous forest; pine; volatile organic compound; Article; factor analysis; Finland; light; limit of detection; logging; mass fragmentography; nonhuman; Norway spruce; particulate matter; photochemistry; positive matrix factorization; Scots pine; taiga; temperature dependence; Finland; Norway; Picea abies; Pinus sylvestris
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/248353
作者单位	Finnish Meteorological Institute, Finland; University of Rochester School of Medicine and Dentistry, Finland; Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, Finland
推荐引用方式 GB/T 7714	Vestenius M.,Hopke P.K.,Lehtipalo K.,et al. Assessing volatile organic compound sources in a boreal forest using positive matrix factorization (PMF)[J],2021,259.
APA	Vestenius M.,Hopke P.K.,Lehtipalo K.,Petäjä T.,Hakola H.,&Hellén H..(2021).Assessing volatile organic compound sources in a boreal forest using positive matrix factorization (PMF).ATMOSPHERIC ENVIRONMENT,259.
MLA	Vestenius M.,et al."Assessing volatile organic compound sources in a boreal forest using positive matrix factorization (PMF)".ATMOSPHERIC ENVIRONMENT 259(2021).