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Higher than expected cluster survival probability implies either ineffective scavenging by pre-existing particles or missing growth mechanisms. Here we present experiments performed in the CLOUD chamber at CERN showing particle formation from a mixture of anthropogenic vapours, under condensation sinks typical of haze conditions, up to 0.1 s$^{-1}$ . We find that new particle formation rates substantially decrease at higher concentrations of pre-existing particles, demonstrating experimentally for the first time that molecular clusters are efficiently scavenged by larger sized particles. Additionally, we demonstrate that in the presence of supersaturated gas-phase nitric acid (HNO$_3$) and ammonia (NH$_3$), freshly nucleated particles can grow extremely rapidly, maintaining a high particle number concentration, even in the presence of a high condensation sink. Such high growth rates may explain the high survival probability of freshly formed particles under haze conditions. We identify under what typical urban conditions HNO$_3$ and NH$_3$ can be expected to contribute to particle survival during haze. Marten, Ruby; Xiao, Mao; Rorup, Birte; Wang, Mingyi; Kong, Weimeng; He, Xu-Cheng; Stolzenburg, Dominik; Pfeifer, Joschka; Marie, Guillaume; Wang, Dongyu S; Scholz, Wiebke; Baccarini, Andrea; Lee, Chuan Ping; Amorim, Antonio; Baalbaki, Rima; Bell, David M; Bertozzi, Barbara; Caudillo, Lucia; Chu, Biwu; Dada, Lubna; Duplissy, Jonathan; Finkenzeller, Henning; Carracedo, Loic Gonzalez; Granzin, Manuel; Hansel, Armin; Heinritzi, Martin; Hofbauer, Victoria; Kemppainen, Deniz; Kurten, Andreas; Lampimaki, Markus; Lehtipalo, Katrianne; Makhmutov, Vladimir; Manninen, Hanna E; Mentler, Bernhard; Petaja, Tuukka; Philippov, Maxim; Shen, Jiali; Simon, Mario; Stozhkov, Yuri; Tome, Antonio; Wagner, Andrea C; Wang, Yonghong; Weber, Stefan K; Wu, Yusheng; Zauner-Wieczorek, Marcel; Curtius, Joachim; Kulmala, Markku; Mohler, Ottmar; Volkamer, Rainer; Winkler, Paul M; Worsnop, Douglas R; Dommen, Josef; Flagan, Richard C; Kirkby, Jasper; Donahue, Neil M; Lamkaddam, Houssni; Baltensperger, Urs; Haddad, Imad El" /> <meta name="keywords" content="CERN Document Server, WebSearch, CERN Document Server" /> <script type="text/javascript" src="https://cds.cern.ch/js/jquery.min.js"></script>  <link rel="stylesheet" href="https://cds.cern.ch/img/webnews.css" type="text/css" />  <script type="text/javascript" src="https://cds.cern.ch/js/webnews.js?v=20131009"></script> <meta property="fb:app_id" content="137353533001720"/> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ tex2jax: {inlineMath: [['$','$']], processEscapes: true}, showProcessingMessages: false, messageStyle: "none" }); </script> <script src="/MathJax/MathJax.js?config=TeX-AMS_CHTML" type="text/javascript"> </script>  <meta content="submitter : Survival of newly formed particles in haze conditions" name="citation_title" /> <meta content="Marten, Ruby" name="citation_author" /> <meta content="Weber, Stefan K" name="citation_author" /> <meta content="Lee, Chuan Ping" name="citation_author" /> <meta content="Donahue, Neil M" name="citation_author" /> <meta content="Dommen, Josef" name="citation_author" /> <meta content="Kemppainen, Deniz" name="citation_author" /> <meta content="Hofbauer, Victoria" name="citation_author" /> <meta content="Philippov, Maxim" name="citation_author" /> <meta content="Hansel, Armin" name="citation_author" /> <meta content="Finkenzeller, Henning" name="citation_author" /> <meta content="Scholz, Wiebke" name="citation_author" /> <meta content="Shen, Jiali" name="citation_author" /> <meta content="Curtius, Joachim" name="citation_author" /> <meta content="Worsnop, Douglas R" name="citation_author" /> <meta content="Winkler, Paul M" name="citation_author" /> <meta content="Rorup, Birte" name="citation_author" /> <meta content="Lehtipalo, Katrianne" name="citation_author" /> <meta content="Duplissy, Jonathan" name="citation_author" /> <meta content="Wang, Yonghong" name="citation_author" /> <meta content="Haddad, Imad El" name="citation_author" /> <meta content="Xiao, Mao" name="citation_author" /> <meta content="Baltensperger, Urs" name="citation_author" /> <meta content="Granzin, Manuel" name="citation_author" /> <meta content="Dada, Lubna" name="citation_author" /> <meta content="Carracedo, Loic Gonzalez" name="citation_author" /> <meta content="Caudillo, Lucia" name="citation_author" /> <meta content="Bertozzi, Barbara" name="citation_author" /> <meta content="Heinritzi, Martin" name="citation_author" /> <meta content="Marie, Guillaume" name="citation_author" /> <meta content="Wang, Mingyi" name="citation_author" /> <meta content="Stozhkov, Yuri" name="citation_author" /> <meta content="Simon, Mario" name="citation_author" /> <meta content="Petaja, Tuukka" name="citation_author" /> <meta content="Lamkaddam, Houssni" name="citation_author" /> <meta content="Baccarini, Andrea" name="citation_author" /> <meta content="Wagner, Andrea C" name="citation_author" /> <meta content="Zauner-Wieczorek, Marcel" name="citation_author" /> <meta content="Flagan, Richard C" name="citation_author" /> <meta content="Chu, Biwu" name="citation_author" /> <meta content="Tome, Antonio" name="citation_author" /> <meta content="Amorim, Antonio" name="citation_author" /> <meta content="Bell, David M" name="citation_author" /> <meta content="Wang, Dongyu S" name="citation_author" /> <meta content="Makhmutov, Vladimir" name="citation_author" /> <meta content="Mohler, Ottmar" name="citation_author" /> <meta content="Manninen, Hanna E" name="citation_author" /> <meta content="Pfeifer, Joschka" name="citation_author" /> <meta content="Kong, Weimeng" name="citation_author" /> <meta content="He, Xu-Cheng" name="citation_author" /> <meta content="Mentler, Bernhard" name="citation_author" /> <meta content="Lampimaki, Markus" name="citation_author" /> <meta content="Wu, Yusheng" name="citation_author" /> <meta content="Volkamer, Rainer" name="citation_author" /> <meta content="Kirkby, Jasper" name="citation_author" /> <meta content="Kulmala, Markku" name="citation_author" /> <meta content="Kurten, Andreas" name="citation_author" /> <meta content="Baalbaki, Rima" name="citation_author" /> <meta content="Stolzenburg, Dominik" name="citation_author" /> <meta content="10.1039/d2ea00007e" name="citation_doi" /> <meta content="Environmental Science: Atmospheres" name="citation_journal_title" /> <meta content="2" name="citation_volume" /> <meta content="491-499" name="citation_firstpage" /> <meta content="2022" name="citation_publication_date" /> <meta name="citation_online_date" content="2022/11/30"> <meta content="10.1039/d2ea00007e" name="citation_doi" /> <meta name="citation_pdf_url" content="https://cds.cern.ch/record/2842570/files/d2ea00007e.pdf" />  <meta content="submitter" property="og:title" /> <meta content="Survival of newly formed particles in haze conditions" property="og:title" /> <meta content="website" property="og:type" /> <meta content="https://cds.cern.ch/record/2842570" property="og:url" /> <meta content="CERN Document Server" property="og:site_name" /> <meta content="submitter" property="og:description" /> <meta content="Intense new particle formation events are regularly observed under highly polluted conditions, despite the high loss rates of nucleated clusters. Higher than expected cluster survival probability implies either ineffective scavenging by pre-existing particles or missing growth mechanisms. Here we present experiments performed in the CLOUD chamber at CERN showing particle formation from a mixture of anthropogenic vapours, under condensation sinks typical of haze conditions, up to 0.1 s$^{-1}$ . We find that new particle formation rates substantially decrease at higher concentrations of pre-existing particles, demonstrating experimentally for the first time that molecular clusters are efficiently scavenged by larger sized particles. Additionally, we demonstrate that in the presence of supersaturated gas-phase nitric acid (HNO$_3$) and ammonia (NH$_3$), freshly nucleated particles can grow extremely rapidly, maintaining a high particle number concentration, even in the presence of a high condensation sink. Such high growth rates may explain the high survival probability of freshly formed particles under haze conditions. We identify under what typical urban conditions HNO$_3$ and NH$_3$ can be expected to contribute to particle survival during haze." property="og:description" />  <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="CERN32Document32Server search" lang="no">  <div id="cern-toolbar"> <h1><a href="http://cern.ch" title="CERN">CERN <span>Accelerating science</span></a></h1> <ul> <li class="cern-accountlinks"><a class="cern-account" href="https://cds.cern.ch/youraccount/login?ln=no&referer=https%3A//cds.cern.ch/record/2842570%3Fln%3Dno" title="Sign in to your CERN account">Sign in</a></li> <li><a class="cern-directory" href="http://cern.ch/directory" title="Search CERN resources and browse the directory">Directory</a></li> </ul> </div>   <div role="banner" class="clearfix" id="header"> <div class="header-inner inner"> <hgroup class="clearfix"> <h2 id="site-name"> <a rel="home" title="Home" href="/"><span>CERN Document Server</span></a> </h2> <h3 id="site-slogan">Access articles, reports and multimedia content in HEP</h3> </hgroup> <div role="navigation" id="main-navigation" class="cdsmenu"> <h2 class="element-invisible">Main menu</h2><ul class="links inline clearfix"> <li class="menu-386 first active-trail"><a class="active-trail" href="https://cds.cern.ch/?ln=no">Søk</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=no">Send inn</a></li> <li class="menu-426 "><a class="" href="https://cds.cern.ch/help/?ln=no">Hjelp</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=no">Brukerinnstillinger</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=no">Your alerts</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=no">Your baskets</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=no">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=no">Your searches</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=no" class="navtrail">Hovedsiden</a> > Survival of newly formed particles in haze conditions </td> </tr> </table> </div> <div class="pagebody"><div class="pagebodystripemiddle"> <div class="detailedrecordbox"> <div class="detailedrecordtabs"> <div> <ul class="detailedrecordtabs"><li class="on first"><a href="/record/2842570/?ln=no">Informasjon </a></li><li class=""><a href="/record/2842570/files?ln=no">Files </a></li></ul> <div id="tabsSpacer" style="clear:both;height:0px"> </div></div> </div> <div class="detailedrecordboxcontent"> <div class="top-left-folded"></div> <div class="top-right-folded"></div> <div class="inside">  <abbr class="unapi-id" title="2842570"></abbr> <style type="text/css">  </style> <table class="formatRecordTableFullWidth" > <tr> <td class="formatRecordHeader" style="background-image: url('https://cds.cern.ch/img/journals.jpg');" colspan="2">  Article </td> </tr> <script type="text/javascript"> $( document ).ready(function() { $('.showAuthor').on('click', function() { var author = '<p>' + $(this).data('name') + '</p>'; var affiliation = $(this).data('affiliation') + '</br>'; var contribution = $(this).data('contribution') + '</br>'; $.magnificPopup.open({ items: { src: '<div id="ovelary-mathjax" class="overlay-white oc-content overlay-white-500">' + author + affiliation + contribution + '</div>', type: 'inline' }, callbacks: { open: function() { var div = document.getElementById("overlay-mathjax") MathJax.Hub.Queue(["Typeset", MathJax.Hub, div]); }, } }) }) }); </script> <tr><td class="formatRecordLabel"> Title </td><td style="padding-left:5px;"><b>Survival of newly formed particles in haze conditions</b></td></tr> <tr><td class="formatRecordLabel"><span style="white-space:nowrap;"> Author(s) </span> </td><td style="padding-left:5px;"> <script type="text/javascript"> function toggle_authors_visibility(){ var more = document.getElementById('more'); var link = document.getElementById('link'); var extension = document.getElementById('extension'); if (more.style.display=='none'){ more.style.display = ''; extension.style.display = 'none'; link.innerHTML = "Skjul" } else { more.style.display = 'none'; extension.style.display = ''; link.innerHTML = "Vis alle 58 forfattere" } link.style.color = "rgb(204,0,0);" } function set_up(){ var extension = document.getElementById('extension'); extension.innerHTML = ""; toggle_authors_visibility(); } </script> <a name="show_hide" /><a href="https://cds.cern.ch/search?f=author&p=Marten%2C%20Ruby&ln=no">Marten, Ruby</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Xiao%2C%20Mao&ln=no">Xiao, Mao</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Rorup%2C%20Birte&ln=no">Rorup, Birte</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Wang%2C%20Mingyi&ln=no">Wang, Mingyi</a> (Carnegie Mellon U.) ; <a href="https://cds.cern.ch/search?f=author&p=Kong%2C%20Weimeng&ln=no">Kong, Weimeng</a> (Caltech) ; <a href="https://cds.cern.ch/search?f=author&p=He%2C%20Xu-Cheng&ln=no">He, Xu-Cheng</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Stolzenburg%2C%20Dominik&ln=no">Stolzenburg, Dominik</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Pfeifer%2C%20Joschka&ln=no">Pfeifer, Joschka</a> (CERN ; Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Marie%2C%20Guillaume&ln=no">Marie, Guillaume</a> (Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Wang%2C%20Dongyu%20S&ln=no">Wang, Dongyu S</a> (PSI, Villigen)<span id="more" style=""> ; <a href="https://cds.cern.ch/search?f=author&p=Scholz%2C%20Wiebke&ln=no">Scholz, Wiebke</a> (Innsbruck U.) ; <a href="https://cds.cern.ch/search?f=author&p=Baccarini%2C%20Andrea&ln=no">Baccarini, Andrea</a> (PSI, Villigen ; Ecole Polytechnique, Lausanne) ; <a href="https://cds.cern.ch/search?f=author&p=Lee%2C%20Chuan%20Ping&ln=no">Lee, Chuan Ping</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Amorim%2C%20Antonio&ln=no">Amorim, Antonio</a> (Lisbon, CENTRA) ; <a href="https://cds.cern.ch/search?f=author&p=Baalbaki%2C%20Rima&ln=no">Baalbaki, Rima</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Bell%2C%20David%20M&ln=no">Bell, David M</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Bertozzi%2C%20Barbara&ln=no">Bertozzi, Barbara</a> (Karlsruhe, Forschungszentrum) ; <a href="https://cds.cern.ch/search?f=author&p=Caudillo%2C%20Lucia&ln=no">Caudillo, Lucia</a> (Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Chu%2C%20Biwu&ln=no">Chu, Biwu</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Dada%2C%20Lubna&ln=no">Dada, Lubna</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Duplissy%2C%20Jonathan&ln=no">Duplissy, Jonathan</a> (Caltech ; Helsinki U. ; Jyvaskyla U.) ; <a href="https://cds.cern.ch/search?f=author&p=Finkenzeller%2C%20Henning&ln=no">Finkenzeller, Henning</a> (Colorado u.) ; <a href="https://cds.cern.ch/search?f=author&p=Carracedo%2C%20Loic%20Gonzalez&ln=no">Carracedo, Loic Gonzalez</a> (Vienna U.) ; <a href="https://cds.cern.ch/search?f=author&p=Granzin%2C%20Manuel&ln=no">Granzin, Manuel</a> (Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Hansel%2C%20Armin&ln=no">Hansel, Armin</a> (Innsbruck U.) ; <a href="https://cds.cern.ch/search?f=author&p=Heinritzi%2C%20Martin&ln=no">Heinritzi, Martin</a> (Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Hofbauer%2C%20Victoria&ln=no">Hofbauer, Victoria</a> (Carnegie Mellon U.) ; <a href="https://cds.cern.ch/search?f=author&p=Kemppainen%2C%20Deniz&ln=no">Kemppainen, Deniz</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Kurten%2C%20Andreas&ln=no">Kurten, Andreas</a> (Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Lampimaki%2C%20Markus&ln=no">Lampimaki, Markus</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Lehtipalo%2C%20Katrianne&ln=no">Lehtipalo, Katrianne</a> (Helsinki U. ; Finnish Meteorological Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Makhmutov%2C%20Vladimir&ln=no">Makhmutov, Vladimir</a> (Lebedev Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Manninen%2C%20Hanna%20E&ln=no">Manninen, Hanna E</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Mentler%2C%20Bernhard&ln=no">Mentler, Bernhard</a> (Innsbruck U.) ; <a href="https://cds.cern.ch/search?f=author&p=Petaja%2C%20Tuukka&ln=no">Petaja, Tuukka</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Philippov%2C%20Maxim&ln=no">Philippov, Maxim</a> (Lebedev Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Shen%2C%20Jiali&ln=no">Shen, Jiali</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Simon%2C%20Mario&ln=no">Simon, Mario</a> (Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Stozhkov%2C%20Yuri&ln=no">Stozhkov, Yuri</a> (Lebedev Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Tome%2C%20Antonio&ln=no">Tome, Antonio</a> (Beira Interior U., Covilha) ; <a href="https://cds.cern.ch/search?f=author&p=Wagner%2C%20Andrea%20C&ln=no">Wagner, Andrea C</a> (Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Wang%2C%20Yonghong&ln=no">Wang, Yonghong</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Weber%2C%20Stefan%20K&ln=no">Weber, Stefan K</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Wu%2C%20Yusheng&ln=no">Wu, Yusheng</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Zauner-Wieczorek%2C%20Marcel&ln=no">Zauner-Wieczorek, Marcel</a> (Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Curtius%2C%20Joachim&ln=no">Curtius, Joachim</a> (Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Kulmala%2C%20Markku&ln=no">Kulmala, Markku</a> (Helsinki U.) ; <a href="https://cds.cern.ch/search?f=author&p=Mohler%2C%20Ottmar&ln=no">Mohler, Ottmar</a> (Karlsruhe, Forschungszentrum) ; <a href="https://cds.cern.ch/search?f=author&p=Volkamer%2C%20Rainer&ln=no">Volkamer, Rainer</a> (Colorado u.) ; <a href="https://cds.cern.ch/search?f=author&p=Winkler%2C%20Paul%20M&ln=no">Winkler, Paul M</a> (Vienna U.) ; <a href="https://cds.cern.ch/search?f=author&p=Worsnop%2C%20Douglas%20R&ln=no">Worsnop, Douglas R</a> (New England Nucl.) ; <a href="https://cds.cern.ch/search?f=author&p=Dommen%2C%20Josef&ln=no">Dommen, Josef</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Flagan%2C%20Richard%20C&ln=no">Flagan, Richard C</a> (Caltech) ; <a href="https://cds.cern.ch/search?f=author&p=Kirkby%2C%20Jasper&ln=no">Kirkby, Jasper</a> (CERN ; Frankfurt U., FIAS ; Frankfurt U.) ; <a href="https://cds.cern.ch/search?f=author&p=Donahue%2C%20Neil%20M&ln=no">Donahue, Neil M</a> (Carnegie Mellon U.) ; <a href="https://cds.cern.ch/search?f=author&p=Lamkaddam%2C%20Houssni&ln=no">Lamkaddam, Houssni</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Baltensperger%2C%20Urs&ln=no">Baltensperger, Urs</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Haddad%2C%20Imad%20El&ln=no">Haddad, Imad El</a> (PSI, Villigen)</span> <span id="extension"></span> <small><i><a id="link" href="#" onclick="toggle_authors_visibility()" style="color:rgb(204,0,0);"></a></i></small><script type="text/javascript">set_up()</script></td></tr> <tr><td class="formatRecordLabel"> Publication </td><td style="padding-left:5px;">2022</td></tr> <tr><td class="formatRecordLabel"> Number of pages </td><td style="padding-left:5px;">9</td></tr> <tr><td class="formatRecordLabel"> In: </td><td style="padding-left:5px;"><a href="http://dx.doi.org/10.1039/d2ea00007e"><i>Environmental Science: Atmospheres</i> 2 (2022) 491-499</a> </a></td></tr> <tr><td class="formatRecordLabel"> DOI </td><td style="padding-left:5px;"><a href="http://dx.doi.org/10.1039/d2ea00007e" title="DOI" target="_blank">10.1039/d2ea00007e</a> <tr><td class="formatRecordLabel"> Subject category </td><td style="padding-left:5px;">Astrophysics and Astronomy</td></tr> <tr><td class="formatRecordLabel"> Accelerator/Facility, Experiment </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/search?p=CERN%20PS&f=693__a">CERN PS</a> ; <a href="https://cds.cern.ch/search?p=CLOUD%20PS210&f=693__e">CLOUD PS210</a></td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">Intense new particle formation events are regularly observed under highly polluted conditions, despite the high loss rates of nucleated clusters. Higher than expected cluster survival probability implies either ineffective scavenging by pre-existing particles or missing growth mechanisms. Here we present experiments performed in the CLOUD chamber at CERN showing particle formation from a mixture of anthropogenic vapours, under condensation sinks typical of haze conditions, up to 0.1 s$^{-1}$ . We find that new particle formation rates substantially decrease at higher concentrations of pre-existing particles, demonstrating experimentally for the first time that molecular clusters are efficiently scavenged by larger sized particles. Additionally, we demonstrate that in the presence of supersaturated gas-phase nitric acid (HNO$_3$) and ammonia (NH$_3$), freshly nucleated particles can grow extremely rapidly, maintaining a high particle number concentration, even in the presence of a high condensation sink. Such high growth rates may explain the high survival probability of freshly formed particles under haze conditions. We identify under what typical urban conditions HNO$_3$ and NH$_3$ can be expected to contribute to particle survival during haze.</td></tr> <tr><td class="formatRecordLabel"> Copyright/License </td><td style="padding-left:5px;">publication: (License: <a href="http://creativecommons.org/licenses/by-nc/3.0/">CC-BY-NC-3.0</a>)<br/>© 2022-2024 The Author(s)</td></tr> </table> <br/>Corresponding record in: <a href="http://inspirehep.net/record/2183068">Inspire</a> <small> </small> <br/> <br/><br/><div align="right"><div style="padding-bottom:2px;padding-top:30px;"><span class="moreinfo" style="margin-right:10px;"> <a href="" class="moreinfo">Back to search</a> </span></div></div> <div class="bottom-left-folded"><div class="recordlastmodifiedbox" style="position:relative;margin-left:1px"> Element opprettet 2022-11-30, sist endret 2023-03-31</div></div> <div class="bottom-right-folded" style="text-align:right;padding-bottom:2px;"> <span class="moreinfo" style="margin-right:10px;"><a href="/search?ln=no&p=recid%3A2842570&rm=wrd" class="moreinfo">Lignende elementer</a></span></div> </div> </div> </div> <br/> <br /> <div class="detailedrecordminipanel"> <div class="top-left"></div><div class="top-right"></div> <div class="inside"> <div id="detailedrecordminipanelfile" style="width:33%;float:left;text-align:center;margin-top:0"> <div><small class="detailedRecordActions">Fulltekst:</small> <br /><a href="/record/2842570/files/d2ea00007e.pdf"><img style="border:none" src="/img/file-icon-text-34x48.gif" alt="Last ned fulltekst" /><br />PDF</a><br /></div> </div> <div id="detailedrecordminipanelreview" style="width:30%;float:left;text-align:center"> </div> <div id="detailedrecordminipanelactions" style="width:36%;float:right;text-align:right;"> <ul class="detailedrecordactions"> <li><a href="/yourbaskets/add?ln=no&recid=2842570">Legg i egen kurv</a></li> <li>Eksporter som <a style="text-decoration:underline;font-weight:normal" href="/record/2842570/export/hx?ln=no">BibTeX</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2842570/export/hm?ln=no">MARC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2842570/export/xm?ln=no">MARCXML</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2842570/export/xd?ln=no">DC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2842570/export/xe?ln=no">EndNote</a>,  <a style="text-decoration:underline;font-weight:normal" href="/record/2842570/export/xn?ln=no">NLM</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2842570/export/xw?ln=no">RefWorks</a> </li> </ul> <div style='padding-left: 13px;'>  <div id="bookmark"></div> <div id="bookmark_sciencewise"></div> <style type="text/css"> #bookmark_sciencewise, #bookmark {float: left;} #bookmark_sciencewise li {padding: 2px; width: 25px;} #bookmark_sciencewise ul, #bookmark ul {list-style-image: none;} </style> <script type="text/javascript" src="/js/jquery.bookmark.min.js"></script> <style type="text/css">@import "/css/jquery.bookmark.css";</style> <script type="text/javascript">// <![CDATA[ $.bookmark.addSite('sciencewise', 'ScienceWise.info', 'https://cds.cern.ch/img/sciencewise.png', 'en', 'bookmark', 'http://sciencewise.info/bookmarks/cds:2842570/add'); $('#bookmark_sciencewise').bookmark({sites: ['sciencewise']}); $('#bookmark').bookmark({ sites: ['facebook', 'twitter', 'linkedin', 'google_plusone'], icons: '/img/bookmarks.png', url: 'https://cds.cern.ch/record/2842570', addEmail: true, title: "Survival of newly formed particles in haze conditions", description: "Intense new particle formation events are regularly observed under highly polluted conditions, despite the high loss rates of nucleated clusters. Higher than expected cluster survival probability implies either ineffective scavenging by pre-existing particles or missing growth mechanisms. Here we present experiments performed in the CLOUD chamber at CERN showing particle formation from a mixture of anthropogenic vapours, under condensation sinks typical of haze conditions, up to 0.1 s$^{-1}$ . We find that new particle formation rates substantially decrease at higher concentrations of pre-existing particles, demonstrating experimentally for the first time that molecular clusters are efficiently scavenged by larger sized particles. Additionally, we demonstrate that in the presence of supersaturated gas-phase nitric acid (HNO$_3$) and ammonia (NH$_3$), freshly nucleated particles can grow extremely rapidly, maintaining a high particle number concentration, even in the presence of a high condensation sink. Such high growth rates may explain the high survival probability of freshly formed particles under haze conditions. We identify under what typical urban conditions HNO$_3$ and NH$_3$ can be expected to contribute to particle survival during haze." }); // ]]> </script>  </div> </div> <div style="clear:both;margin-bottom: 0;"></div> </div> <div class="bottom-left"></div><div class="bottom-right"></div> </div> </div></div> <footer id="footer" class="pagefooter clearfix">  <div class="pagefooterstripeleft"> CERN Document Server :: <a class="footer" href="https://cds.cern.ch/?ln=no">Søk</a> :: <a class="footer" href="https://cds.cern.ch/submit?ln=no">Send inn</a> :: <a class="footer" href="https://cds.cern.ch/youraccount/display?ln=no">Brukerinnstillinger</a> :: <a class="footer" href="https://cds.cern.ch/help/?ln=no">Hjelp</a> :: <a class="footer" href="https://cern.service-now.com/service-portal?id=privacy_policy&se=CDS-Service" target="_blank">Privacy Notice</a> <br /> Powered by <a class="footer" href="http://invenio-software.org/">Invenio</a> <br /> Vedlikeholdt av <a class="footer" href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Service</a> - Need help? 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