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dc.contributor.authorMartí Gregorio, Vicenç
dc.contributor.authorPablo Ribas, Joan de
dc.contributor.authorJUBANY, IRENE
dc.contributor.authorRovira, Miquel
dc.contributor.authorOrejudo, Emili
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2014-07-08T08:20:36Z
dc.date.available2014-07-08T08:20:36Z
dc.date.created2014-06-11
dc.date.issued2014-06-11
dc.identifier.citationMartí, V. [et al.]. Water-air volatilization factors to determine volatile organic compound (VOC) reference levels in water. "Toxics", 11 Juny 2014, vol. 2, núm. 2, p. 276-290.
dc.identifier.issn2305-6304
dc.identifier.urihttp://hdl.handle.net/2117/23421
dc.description.abstractThe goal of this work is the modeling and calculation of volatilization factors (VFs) from water to air for volatile organic compounds (VOCs) in order to perform human health risk - base d reference levels (RLs) for the safe use of water. The VF models have been developed starting from the overall mass - transfer coefficients ( K overall ) concept from air to water for two interaction geometries (flat surface and spherical droplets) in indoor a nd outdoor scenarios . For a case study with five groups of risk scenarios and thirty VOCs , theoretical VFs have been calculated by using the developed models. Results showed that K overall values for flat and spherical surface geometries were close to the m ass transfer coefficient for water ( K L ) when Henry ’s law constant ( K H ) was high. I n the case of s pherical drop geometry , the fraction of volatilization ( f V ) was asymptotical when increasing K H with f V values also limited due to K overall . VFs for flat surfa ces were calculated from the emission flux of VOCs , and results showed values close to 1000 K H for the most conservative indoor scenarios and almost constant values for outdoor scenarios. VFs for spherical geometry in indoor scenarios followed also constant VFs and were far from 1000 K H . The highest calculated VF values corresponded to the E2A, E2B, E3A and E5A scenarios and were compared with experimental and real results in order to check the goodness of flat and sphere geometry models. Results showed an ov erestimation of OPEN ACCESS Toxics 2014 , 2 277 calculated values for the E2A and E2B scenarios and an underestimation for the E3A and E5A scenarios. In both cases , most of the calculated VFs were from 0.1 - to 10 - times higher than experimental /real values
dc.format.extent15 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Química del medi ambient
dc.subject.lcshVolatile organic compounds.
dc.subject.otherenvironmental contam inants
dc.subject.othervolatile organic compounds
dc.subject.otherwater - air modeling
dc.subject.otherh uman h ealth r isk a ssessment
dc.subject.otherexposure models
dc.subject.otherv olatilization f actors
dc.titleWater-air volatilization factors to determine volatile organic compound (VOC) reference levels in water
dc.typeArticle
dc.subject.lemacCompostos orgànics volàtils -- Aspectes ambientals
dc.contributor.groupUniversitat Politècnica de Catalunya. SETRI - Grup de Tècniques de Separació i Tractament de Residus Industrials
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.mdpi.com/2305-6304/2/2/276
dc.rights.accessOpen Access
local.identifier.drac14946270
dc.description.versionPostprint (published version)
local.citation.authorMartí, V.; Pablo, J.; JUBANY, I.; Rovira, M.; Orejudo, E.
local.citation.publicationNameToxics
local.citation.volume2
local.citation.number2
local.citation.startingPage276
local.citation.endingPage290


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