气候变化领域集成服务门户(CCPortal): Annual exposure to polycyclic aromatic hydrocarbons in urban environments linked to wintertime wood-burning episodes

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DOI	10.5194/acp-21-17865-2021
	Annual exposure to polycyclic aromatic hydrocarbons in urban environments linked to wintertime wood-burning episodes
	Tsiodra I.; Grivas G.; Tavernaraki K.; Bougiatioti A.; Apostolaki M.; Paraskevopoulou D.; Gogou A.; Parinos C.; Oikonomou K.; Tsagkaraki M.; Zarmpas P.; Nenes A.; Mihalopoulos N.
发表日期	2021
ISSN	1680-7316
起始页码	17865
结束页码	17883
卷号	21 期号:23
英文摘要	Polycyclic aromatic hydrocarbons (PAHs) are organic pollutants in fine particulate matter (PM) long known to have mutagenic and carcinogenic effects, but much is unknown about the importance of local and remote sources for PAH levels observed in population-dense urban environments. A year-long sampling campaign in Athens, Greece, where more than 150 samples were analyzed for 31 PAHs and a wide range of chemical markers, was combined with positive matrix factorization (PMF) to constrain the temporal variability, sources, and carcinogenic risk associated with PAHs. It was found that biomass burning (BB), a source mostly present during wintertime intense pollution events (observed for 18ĝ€¯% of measurement days in 2017), led to wintertime PAH levels that were 7 times higher than in other seasons and was as important for annual mean PAH concentrations (31ĝ€¯%) as diesel and oil (33ĝ€¯%) and gasoline (29ĝ€¯%) sources. The contribution of non-local sources, although limited on an annual basis (7ĝ€¯%), increased during summer, becoming comparable to that of local sources combined. The fraction of PAHs (12 members that were included in the PMF analysis) that was associated with BB was also linked to increased health risk compared to the other sources, accounting for almost half the annual PAH carcinogenic potential (43ĝ€¯%). This can result in a large number of excess cancer cases due to BB-related high PM levels and urges immediate action to reduce residential BB emissions in urban areas facing similar issues. © Copyright:
语种	英语
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246385
作者单位	Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, Heraklion, 71003, Greece; Center for the Study of Air Quality and Climate Change, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras, 26504, Greece; Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Lofos Koufou, Athens, 15236, Greece; Laboratory of Atmospheric Processes and Their Impacts, School of Architecture, Civil and Environmental Engineering, Lausanne, 1015, Switzerland; Institute of Oceanography, Hellenic Centre for Marine Research, Anavyssos, 19013, Greece; CARE-C Research Center, Cyprus Institute, Nicosia, 2121, Cyprus
推荐引用方式 GB/T 7714	Tsiodra I.,Grivas G.,Tavernaraki K.,et al. Annual exposure to polycyclic aromatic hydrocarbons in urban environments linked to wintertime wood-burning episodes[J],2021,21(23).
APA	Tsiodra I..,Grivas G..,Tavernaraki K..,Bougiatioti A..,Apostolaki M..,...&Mihalopoulos N..(2021).Annual exposure to polycyclic aromatic hydrocarbons in urban environments linked to wintertime wood-burning episodes.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(23).
MLA	Tsiodra I.,et al."Annual exposure to polycyclic aromatic hydrocarbons in urban environments linked to wintertime wood-burning episodes".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.23(2021).