{"refrec":{"BRefID":134820,"RR":"<b>Wallace, D.W.R.; Beining, P.; Putzka, A.</b> (1994). Carbon tetrachloride and chlorofluorocarbons in the South Atlantic Ocean, 19° S. <i>J. Geophys. Res. 99(C4)</i>: 7803-7819. <a href=\"http://dx.doi.org/10.1029/94JC00031\" target=\"_blank\">http://dx.doi.org/10.1029/94JC00031</a>","BEntID":128752,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Geophys. Res. 99(C4)</i>: 7803-7819. <a href=\"http://dx.doi.org/10.1029/94JC00031\" target=\"_blank\">http://dx.doi.org/10.1029/94JC00031</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Wallace, D.W.R.; Beining, P.; Putzka, A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Wallace, D.W.R. <i>et al.</i>","Englishabstract":"Exploratory measurements of a suite of anthropogenic halocarbon compounds (CCl<sub>4</sub> , CCl<sub>2</sub> FCClF<sub>2</sub> (CFC-113), CH<sub>3</sub> CCl <sub>3</sub>, CCl<sub>3</sub> F (CFC-11)) were made using a new analytical technique on RV Meteor cruise 15 along 19° S (World Ocean Circulation Experiment (WOCE) Line A9)) in the Atlantic Ocean during February-March 1991. A separate analytical system was used to determine CCl<sub>2</sub> F <sub>2</sub> (CFC-12) and CCl<sub>3</sub> F (CFC-11). A limited number of CFC-113 profiles indicated that it was undetectable below 400-500 m. The CCl<sub>4</sub> data indicate that the entire Brazil Basin contains readily measurable levels of CCl<sub>4</sub> (>0.05 pmol kg<sup>-1</sup>), whereas the deep Angola Basin contains very low levels (less than or equal to 0.02 pmol kg<sup>-1</sup>). Slightly higher levels were found close to the bottom in the deep Angola Basin: possibly an anthropogenic signature. In contrast, most of the deep Brazil Basin and all of the deep Angola Basin (>1000 m) had undetectable levels of CFC-11, CFC-12, and CFC-113. Preindustrial levels of CCl<sub>4</sub> in the atmosphere were therefore negligible (atmospheric mixing ratio <0.1 pptv). CCl<sub>4</sub>/CFC-11 ratios are used to estimate apparent ages and dilution factors for the North Atlantic Deep Water and Antarctic Bottom Water. Whereas CCl <sub>4</sub>)/CFC-11/CFC-12 levels are internally consistent in deep waters, suggesting near-conservative behavior, there is evidence for very rapid removal of CCl <sub>4</sub> in the thermocline. Removal rates suggest that in addition to neutral hydrolysis, some other loss pathway must be involved.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Carbon tetrachloride and chlorofluorocarbons in the South Atlantic Ocean, 19° S","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-14 01:31:18.282090","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1994,"MonPub":null,"DateUpdate":"2012-10-29","DateCreate":"2009-05-04","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1994NG71000036","VABBcode":null,"OpenAcc":0,"DOI":"10.1029/94JC00031"},"refs":null,"anarec":{"AnaID":134820,"PubliDate":1994,"Pagination":"7803-7819","XtraPublOfAnaID":null,"ISBN":null,"Volume":"99","Issue":"C4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":90908,"SerRR":"Journal of Geophysical Research. 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