Atmospheric distribution of polycyclic aromatic hydrocarbons and deposition to Galveston Bay, Texas, USA

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dc.acquisition-srcDownloaded from-Web of Scienceen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorPark JSen_US
dc.contributor.authorWade TLen_US
dc.contributor.authorSweet Sen_US
dc.contributor.otherAtmospheric Environmenten_US
dc.date.accessioned2010-02-15T17:17:04Z
dc.date.available2010-02-15T17:17:04Z
dc.date.issued2001 Julen_US
dc.degreeen_US
dc.description3241-3249en_US
dc.description-otheren_US
dc.description.abstractEstimates of the atmospheric deposition to Galveston Bay of polycyclic aromatic hydrocarbons (PAHs) are made using precipitation and meteorological data that were collected continuously from 2 February 1995 to 6 August 1996 at Seabrook, TX, USA. Particulate and vapor phase PAHs in ambient air and particulate and dissolved phases in rain samples were collected and analyzed. More than 95% of atmospheric PAHs were in the vapor phase and about 73% of PAHs in the rain were in the dissolved phase. Phenanthrene and napthalene were the dominant compounds in air vapor and rain dissolved phases, respectively, while 5 and 6 ring PAH were predominant in the particulate phase of both air and rain samples. Total PAH concentrations ranged from 4 to 161 ng m(-3) in air samples and from 50 to 312 ng l(-1) in rain samples. Temporal variability in total PAH air concentrations were observed. with lower concentrations in the spring and fall (4-34 ng m (-3)) compared to the summer and winter (37-161 ng m(-3)). PAHs in the air near Galveston Bay are derived from both combustion and petroleum vaporization. Gas exchange from the atmosphere to the surface water is estimated to be the major deposition process for PAHs (1211 mug m(-2) yr(-1)), relative to wet deposition (130 mug m(-1) yr(-1)) and dry deposition (99 mug m(-1) yr(-1)). Annual deposition of PAHs directly to Galveston Bay from the atmosphere is estimated as 2 t yr(-1). (C) 2001 Elsevier Science Ltd. All rights reserveden_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23439
dc.latitudeen_US
dc.locationen_US
dc.longitudeen_US
dc.notesTimes Cited: 8ArticleEnglishWade, T. LTexas A&M Univ, Coll Geosci, Geochem & Environm Res Grp, 833 Graham Rd, College Stn, TX 77845 USACited References Count: 29446WVTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDOXFORDen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries51085.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectpolycyclic aromatic hydrocarbons (PAHs)en_US
dc.subjectwet depositionen_US
dc.subjectdry depositionen_US
dc.subjectair-sea gas exchangeen_US
dc.subjectGALVESTON BAYen_US
dc.subjectORGANIC-COMPOUNDSen_US
dc.subjectGREAT-LAKESen_US
dc.subjectCHESAPEAKE BAYen_US
dc.subjectWATERen_US
dc.subjectAIRen_US
dc.subjectCONTAMINANTSen_US
dc.subjectPOLLUTANTSen_US
dc.subjectPAHsen_US
dc.titleAtmospheric distribution of polycyclic aromatic hydrocarbons and deposition to Galveston Bay, Texas, USAen_US
dc.typeJournalen_US
dc.universityen_US
dc.vol-issue35(19)en_US

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