Please use this identifier to cite or link to this item: https://repositorio.inpa.gov.br/handle/1/15904
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dc.contributor.authorJardine, Angela B.-
dc.contributor.authorJardine, Kolby J.-
dc.contributor.authorFuentes, José D.-
dc.contributor.authorMartin, Scot T.-
dc.contributor.authorMartins, Giordane Augusto-
dc.contributor.authorDurgante, Flávia Machado-
dc.contributor.authorCarneiro, Vilany Matilla Colares-
dc.contributor.authorHiguchi, Niro-
dc.contributor.authorManzi, Antônio Ocimar-
dc.contributor.authorChambers, Jeffrey Quintin-
dc.date.accessioned2020-05-19T21:03:21Z-
dc.date.available2020-05-19T21:03:21Z-
dc.date.issued2015-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/15904-
dc.description.abstractDespite orders of magnitude difference in atmospheric reactivity and great diversity in biological functioning, little is known about monoterpene speciation in tropical forests. Here we report vertically resolved ambient air mixing ratios for 12 monoterpenes in a central Amazon rainforest including observations of the highly reactive cis-β-ocimene (160 ppt), trans-β-ocimene (79 ppt), and terpinolene (32 ppt) which accounted for an estimated 21% of total monoterpene composition yet 55% of the upper canopy monoterpene ozonolysis rate. All 12 monoterpenes showed a mixing ratio peak in the upper canopy, with three demonstrating subcanopy peaks in 7 of 11 profiles. Leaf level emissions of highly reactive monoterpenes accounted for up to 1.9% of photosynthesis confirming light-dependent emissions across several Amazon tree genera. These results suggest that highly reactive monoterpenes play important antioxidant roles during photosynthesis in plants and serve as near-canopy sources of secondary organic aerosol precursors through atmospheric photooxidation via ozonolysis. © 2015. The Authors.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 42, Número 5, Pags. 1576-1583pt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectAerosolsen
dc.subjectAtmospheric Aerosolsen
dc.subjectAtmospheric Structureen
dc.subjectForestryen
dc.subjectMixingen
dc.subjectOzoneen
dc.subjectPhotooxidationen
dc.subjectPhotosynthesisen
dc.subjectAtmospheric Oxidationen
dc.subjectForest Structureen
dc.subjectOzonolysisen
dc.subjectSecondary Organic Aerosolsen
dc.subjectVoc Emissionsen
dc.subjectMonoterpenesen
dc.subjectAerosol Compositionen
dc.subjectAmbient Airen
dc.subjectAtmospheric Pollutionen
dc.subjectForest Canopyen
dc.subjectLight Effecten
dc.subjectMixing Ratioen
dc.subjectMonoterpeneen
dc.subjectRainforesten
dc.subjectTropical Foresten
dc.subjectVolatile Organic Compounden
dc.subjectAmazoniaen
dc.titleHighly reactive light-dependent monoterpenes in the Amazonen
dc.typeArtigopt_BR
dc.identifier.doi10.1002/2014GL062573-
dc.publisher.journalGeophysical Research Letterspt_BR
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