Atmospheric distributions of HCFC 141b
In recent years, HCFC 141b (CH3CCl2F) has become commercially available as a replacement for CFC 11 (CCl3F) in closed‐cell foam blowing applications and as a partial replacement for CFC 113 (CCl2FCClF2) in solvent and cleaning applications. Measurements of the atmospheric distribution and rate of gr...
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Veröffentlicht in: | Geophysical Research Letters 1995-04, Vol.22 (7), p.819-822 |
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creator | Schauffler, S. M. Pollock, W. H. Atlas, E. L. Heidt, L. E. Daniel, J. S. |
description | In recent years, HCFC 141b (CH3CCl2F) has become commercially available as a replacement for CFC 11 (CCl3F) in closed‐cell foam blowing applications and as a partial replacement for CFC 113 (CCl2FCClF2) in solvent and cleaning applications. Measurements of the atmospheric distribution and rate of growth of HCFC 141b reported here provide initial data to begin evaluation of the atmospheric fate of this replacement compound. HCFC 141b measurements in March 1992 and from various periods in 1993 indicate a strong interhemispheric gradient and rapid growth in tropospheric mixing ratios during this time. Average HCFC 141b mixing ratios in April 1993 in the northern and southern hemispheres were 0.83±0.23 pptv and 0.28±0.07 pptv, respectively. HCFC 141b mixing ratios increased in the mid‐latitude northern hemisphere from 0.26 pptv in late March 1992 to 1.41 pptv in late September 1993. Southern hemisphere mixing ratios increased from approximately 0.28 pptv in April 1993 to 0.45 pptv in October 1993. Emissions estimates, based on the observations, were calculated using a two box model and for 1990–1993 were 0.5, 2.5, 7, and 15 kT, respectively. |
doi_str_mv | 10.1029/95GL00376 |
format | Article |
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M. ; Pollock, W. H. ; Atlas, E. L. ; Heidt, L. E. ; Daniel, J. S.</creator><creatorcontrib>Schauffler, S. M. ; Pollock, W. H. ; Atlas, E. L. ; Heidt, L. E. ; Daniel, J. S.</creatorcontrib><description>In recent years, HCFC 141b (CH3CCl2F) has become commercially available as a replacement for CFC 11 (CCl3F) in closed‐cell foam blowing applications and as a partial replacement for CFC 113 (CCl2FCClF2) in solvent and cleaning applications. Measurements of the atmospheric distribution and rate of growth of HCFC 141b reported here provide initial data to begin evaluation of the atmospheric fate of this replacement compound. HCFC 141b measurements in March 1992 and from various periods in 1993 indicate a strong interhemispheric gradient and rapid growth in tropospheric mixing ratios during this time. Average HCFC 141b mixing ratios in April 1993 in the northern and southern hemispheres were 0.83±0.23 pptv and 0.28±0.07 pptv, respectively. HCFC 141b mixing ratios increased in the mid‐latitude northern hemisphere from 0.26 pptv in late March 1992 to 1.41 pptv in late September 1993. Southern hemisphere mixing ratios increased from approximately 0.28 pptv in April 1993 to 0.45 pptv in October 1993. Emissions estimates, based on the observations, were calculated using a two box model and for 1990–1993 were 0.5, 2.5, 7, and 15 kT, respectively.</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/95GL00376</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Atmospherics ; Blowing ; BOX MODELS ; Chemical composition and interactions. Ionic interactions and processes ; Chlorofluorocarbons ; EARTH ATMOSPHERE ; Earth, ocean, space ; ECOLOGICAL CONCENTRATION ; ENVIRONMENTAL SCIENCES ; Exact sciences and technology ; External geophysics ; Foams ; GLOBAL ASPECTS ; HALOGENATED ALIPHATIC HYDROCARBONS ; HCFC ; Hemispheres ; Meteorology ; Mixing ratios ; Solvents ; VARIATIONS</subject><ispartof>Geophysical Research Letters, 1995-04, Vol.22 (7), p.819-822</ispartof><rights>Copyright 1995 by the American Geophysical Union.</rights><rights>1995 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5223-b6bbd200195a6339c1c6ed7e32ee09023b732f1834d76ce9e6030a30d51504fd3</citedby><cites>FETCH-LOGICAL-c5223-b6bbd200195a6339c1c6ed7e32ee09023b732f1834d76ce9e6030a30d51504fd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F95GL00376$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F95GL00376$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,885,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3496273$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/166225$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Schauffler, S. M.</creatorcontrib><creatorcontrib>Pollock, W. H.</creatorcontrib><creatorcontrib>Atlas, E. L.</creatorcontrib><creatorcontrib>Heidt, L. E.</creatorcontrib><creatorcontrib>Daniel, J. S.</creatorcontrib><title>Atmospheric distributions of HCFC 141b</title><title>Geophysical Research Letters</title><addtitle>Geophys. Res. Lett</addtitle><description>In recent years, HCFC 141b (CH3CCl2F) has become commercially available as a replacement for CFC 11 (CCl3F) in closed‐cell foam blowing applications and as a partial replacement for CFC 113 (CCl2FCClF2) in solvent and cleaning applications. Measurements of the atmospheric distribution and rate of growth of HCFC 141b reported here provide initial data to begin evaluation of the atmospheric fate of this replacement compound. HCFC 141b measurements in March 1992 and from various periods in 1993 indicate a strong interhemispheric gradient and rapid growth in tropospheric mixing ratios during this time. Average HCFC 141b mixing ratios in April 1993 in the northern and southern hemispheres were 0.83±0.23 pptv and 0.28±0.07 pptv, respectively. HCFC 141b mixing ratios increased in the mid‐latitude northern hemisphere from 0.26 pptv in late March 1992 to 1.41 pptv in late September 1993. Southern hemisphere mixing ratios increased from approximately 0.28 pptv in April 1993 to 0.45 pptv in October 1993. Emissions estimates, based on the observations, were calculated using a two box model and for 1990–1993 were 0.5, 2.5, 7, and 15 kT, respectively.</description><subject>Atmospherics</subject><subject>Blowing</subject><subject>BOX MODELS</subject><subject>Chemical composition and interactions. Ionic interactions and processes</subject><subject>Chlorofluorocarbons</subject><subject>EARTH ATMOSPHERE</subject><subject>Earth, ocean, space</subject><subject>ECOLOGICAL CONCENTRATION</subject><subject>ENVIRONMENTAL SCIENCES</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Foams</subject><subject>GLOBAL ASPECTS</subject><subject>HALOGENATED ALIPHATIC HYDROCARBONS</subject><subject>HCFC</subject><subject>Hemispheres</subject><subject>Meteorology</subject><subject>Mixing ratios</subject><subject>Solvents</subject><subject>VARIATIONS</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNqF0cFu1DAQBmALUYml5cAbLBKq4JAy44nt-Fit2BSxLFIBcbQcx1EN2WRrZ9X27XGVam_AyXP4_tHIP2OvES4QuP6gRb0BICWfsQXqsiwqAPWcLQB0nrmSL9jLlH5BNkC4YOeX025M-xsfg1u2IU0xNIcpjENajt3yarVeLbHE5oyddLZP_tXTe8p-rD9-X10Vm6_1p9XlpnCCcyoa2TQtB0AtrCTSDp30rfLEvQcNnBpFvMOKylZJ57WX-QxL0AoUUHYtnbI3894xTcEkFybvbtw4DN5NBqXkXGRzPpt9HG8PPk1mF5LzfW8HPx6SwQoVkKYM3_0bSoUSCaD6PxVcay54hZm-n6mLY0rRd2Yfw87GB4NgHjswxw6yffu01iZn-y7awYV0DFCpJVePh17M7C70_uHv-0x9vany7-VAMQdyYf7-GLDxt5GKlDA_t7X59rleX8svW7OlP47MnaQ</recordid><startdate>19950401</startdate><enddate>19950401</enddate><creator>Schauffler, S. M.</creator><creator>Pollock, W. H.</creator><creator>Atlas, E. L.</creator><creator>Heidt, L. E.</creator><creator>Daniel, J. S.</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><scope>7TG</scope><scope>KL.</scope><scope>OTOTI</scope></search><sort><creationdate>19950401</creationdate><title>Atmospheric distributions of HCFC 141b</title><author>Schauffler, S. M. ; Pollock, W. H. ; Atlas, E. L. ; Heidt, L. E. ; Daniel, J. S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5223-b6bbd200195a6339c1c6ed7e32ee09023b732f1834d76ce9e6030a30d51504fd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Atmospherics</topic><topic>Blowing</topic><topic>BOX MODELS</topic><topic>Chemical composition and interactions. Ionic interactions and processes</topic><topic>Chlorofluorocarbons</topic><topic>EARTH ATMOSPHERE</topic><topic>Earth, ocean, space</topic><topic>ECOLOGICAL CONCENTRATION</topic><topic>ENVIRONMENTAL SCIENCES</topic><topic>Exact sciences and technology</topic><topic>External geophysics</topic><topic>Foams</topic><topic>GLOBAL ASPECTS</topic><topic>HALOGENATED ALIPHATIC HYDROCARBONS</topic><topic>HCFC</topic><topic>Hemispheres</topic><topic>Meteorology</topic><topic>Mixing ratios</topic><topic>Solvents</topic><topic>VARIATIONS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schauffler, S. M.</creatorcontrib><creatorcontrib>Pollock, W. H.</creatorcontrib><creatorcontrib>Atlas, E. L.</creatorcontrib><creatorcontrib>Heidt, L. E.</creatorcontrib><creatorcontrib>Daniel, J. S.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>OSTI.GOV</collection><jtitle>Geophysical Research Letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schauffler, S. M.</au><au>Pollock, W. H.</au><au>Atlas, E. L.</au><au>Heidt, L. E.</au><au>Daniel, J. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Atmospheric distributions of HCFC 141b</atitle><jtitle>Geophysical Research Letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>1995-04-01</date><risdate>1995</risdate><volume>22</volume><issue>7</issue><spage>819</spage><epage>822</epage><pages>819-822</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>In recent years, HCFC 141b (CH3CCl2F) has become commercially available as a replacement for CFC 11 (CCl3F) in closed‐cell foam blowing applications and as a partial replacement for CFC 113 (CCl2FCClF2) in solvent and cleaning applications. Measurements of the atmospheric distribution and rate of growth of HCFC 141b reported here provide initial data to begin evaluation of the atmospheric fate of this replacement compound. HCFC 141b measurements in March 1992 and from various periods in 1993 indicate a strong interhemispheric gradient and rapid growth in tropospheric mixing ratios during this time. Average HCFC 141b mixing ratios in April 1993 in the northern and southern hemispheres were 0.83±0.23 pptv and 0.28±0.07 pptv, respectively. HCFC 141b mixing ratios increased in the mid‐latitude northern hemisphere from 0.26 pptv in late March 1992 to 1.41 pptv in late September 1993. Southern hemisphere mixing ratios increased from approximately 0.28 pptv in April 1993 to 0.45 pptv in October 1993. Emissions estimates, based on the observations, were calculated using a two box model and for 1990–1993 were 0.5, 2.5, 7, and 15 kT, respectively.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/95GL00376</doi><tpages>4</tpages></addata></record> |
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subjects | Atmospherics Blowing BOX MODELS Chemical composition and interactions. Ionic interactions and processes Chlorofluorocarbons EARTH ATMOSPHERE Earth, ocean, space ECOLOGICAL CONCENTRATION ENVIRONMENTAL SCIENCES Exact sciences and technology External geophysics Foams GLOBAL ASPECTS HALOGENATED ALIPHATIC HYDROCARBONS HCFC Hemispheres Meteorology Mixing ratios Solvents VARIATIONS |
title | Atmospheric distributions of HCFC 141b |
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