Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/74956
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dc.contributorDepartment of Civil and Environmental Engineeringen_US
dc.creatorSong, Jen_US
dc.creatorZhang, Yen_US
dc.creatorHuang, Yen_US
dc.creatorHo, KFen_US
dc.creatorYuan, Zen_US
dc.creatorLing, Zen_US
dc.creatorNiu, Xen_US
dc.creatorGao, Yen_US
dc.creatorCui, Len_US
dc.creatorLouie, PKKen_US
dc.creatorLee, SCen_US
dc.creatorLai, Sen_US
dc.date.accessioned2018-03-29T09:34:16Z-
dc.date.available2018-03-29T09:34:16Z-
dc.identifier.issn0045-6535en_US
dc.identifier.urihttp://hdl.handle.net/10397/74956-
dc.language.isoenen_US
dc.publisherElsevier Ltden_US
dc.rights© 2017 Elsevier Ltd. All rights reserved.en_US
dc.rights© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.en_US
dc.rightsThe following publication Song, J., Zhang, Y., Huang, Y., Ho, K. F., Yuan, Z., Ling, Z., ... & Lai, S. (2017). Seasonal variations of C1-C4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions. Chemosphere, 194, 275-284 is available at https://doi.org/10.1016/j.chemosphere.2017.11.104en_US
dc.subjectAlkyl nitratesen_US
dc.subjectMarine emissionsen_US
dc.subjectOzoneen_US
dc.subjectPhotochemical productionen_US
dc.subjectSeasonalityen_US
dc.titleSeasonal variations of C1-C4 alkyl nitrates at a coastal site in Hong Kong : influence of photochemical formation and oceanic emissionsen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage275en_US
dc.identifier.epage284en_US
dc.identifier.volume194en_US
dc.identifier.doi10.1016/j.chemosphere.2017.11.104en_US
dcterms.abstractFive C1-C4 alkyl nitrates (RONO2) were measured at a coastal site in Hong Kong in four selected months of 2011 and 2012. The total mixing ratios of C1-C4 RONO2 (Σ5RONO2) ranged from 15.4 to 143.7 pptv with an average of 65.9 ± 33.0 pptv. C3-C4 RONO2 (2-butyl nitrate and 2-propyl nitrate) were the most abundant RONO2 during the entire sampling period. The mixing ratios of C3-C4 RONO2 were higher in winter than those in summer, while the ones of methyl nitrate (MeONO2) were higher in summer than those in winter. Source analysis suggests that C2-C4 RONO2 were mainly derived from photochemical formation along with biomass burning (58.3–71.6%), while ocean was a major contributor to MeONO2 (53.8%) during the whole sampling period. The photochemical evolution of C2-C4 RONO2 was investigated, and found to be dominantly produced by the parent hydrocarbon oxidation. The notable enrichment of MeONO2 over C3-C4 RONO2 was observed in a summer episode when the air masses originating from the South China Sea (SCS) and MeONO2 was dominantly derived from oceanic emissions. In order to improve the accuracy of ozone (O3) prediction in coastal environment, the relative contribution of RONO2 from oceanic emissions versus photochemical formation and their coupling effects on O3 production should be taken into account in future studies.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationChemosphere, Mar. 2018, v. 194, p. 275-284en_US
dcterms.isPartOfChemosphereen_US
dcterms.issued2018-03-
dc.identifier.scopus2-s2.0-85036503962-
dc.identifier.eissn1879-1298en_US
dc.identifier.rosgroupid2017002618-
dc.description.ros2017-2018 > Academic research: refereed > Publication in refereed journalen_US
dc.description.validate201803 bcmaen_US
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumberRGC-B1-104-
dc.description.fundingSourceRGCen_US
dc.description.fundingSourceOthersen_US
dc.description.fundingText"The National Natural Scientific Foundation of China"en_US
dc.description.pubStatusPublisheden_US
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