Biogenic Potassium Salt Particles as Seeds for Secondary Organic Aerosol in the Amazon
The fine particles serving as cloud condensation nuclei in pristine Amazonian rainforest air consist mostly of secondary organic aerosol. Their origin is enigmatic, however, because new particle formation in the atmosphere is not observed. Here, we show that the growth of organic aerosol particles c...
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Veröffentlicht in: | Science (American Association for the Advancement of Science) 2012-08, Vol.337 (6098), p.1075-1078 |
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creator | Pöhlker, Christopher Wiedemann, Kenia T. Sinha, Bärbel Shiraiwa, Manabu Gunthe, Sachin S. Smith, Mackenzie Su, Hang Artaxo, Paulo Chen, Qi Cheng, Yafang Elbert, Wolfgang Gilles, Mary K. Kilcoyne, Arthur L. D. Moffet, Ryan C. Weigand, Markus Martin, Scot T. Pöschl, Ulrich Andreae, Meinrat O. |
description | The fine particles serving as cloud condensation nuclei in pristine Amazonian rainforest air consist mostly of secondary organic aerosol. Their origin is enigmatic, however, because new particle formation in the atmosphere is not observed. Here, we show that the growth of organic aerosol particles can be initiated by potassium-salt—rich particles emitted by biota in the rainforest. These particles act as seeds for the condensation of low- or semi-volatile organic compounds from the atmospheric gas phase or multiphase oxidation of isoprene and terpenes. Our findings suggest that the primary emission of biogenic salt particles directly influences the number concentration of cloud condensation nuclei and affects the microphysics of cloud formation and precipitation over the rainforest. |
doi_str_mv | 10.1126/science.1223264 |
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D. ; Moffet, Ryan C. ; Weigand, Markus ; Martin, Scot T. ; Pöschl, Ulrich ; Andreae, Meinrat O.</creator><creatorcontrib>Pöhlker, Christopher ; Wiedemann, Kenia T. ; Sinha, Bärbel ; Shiraiwa, Manabu ; Gunthe, Sachin S. ; Smith, Mackenzie ; Su, Hang ; Artaxo, Paulo ; Chen, Qi ; Cheng, Yafang ; Elbert, Wolfgang ; Gilles, Mary K. ; Kilcoyne, Arthur L. D. ; Moffet, Ryan C. ; Weigand, Markus ; Martin, Scot T. ; Pöschl, Ulrich ; Andreae, Meinrat O.</creatorcontrib><description>The fine particles serving as cloud condensation nuclei in pristine Amazonian rainforest air consist mostly of secondary organic aerosol. Their origin is enigmatic, however, because new particle formation in the atmosphere is not observed. Here, we show that the growth of organic aerosol particles can be initiated by potassium-salt—rich particles emitted by biota in the rainforest. These particles act as seeds for the condensation of low- or semi-volatile organic compounds from the atmospheric gas phase or multiphase oxidation of isoprene and terpenes. Our findings suggest that the primary emission of biogenic salt particles directly influences the number concentration of cloud condensation nuclei and affects the microphysics of cloud formation and precipitation over the rainforest.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.1223264</identifier><identifier>PMID: 22936773</identifier><identifier>CODEN: SCIEAS</identifier><language>eng</language><publisher>Washington, DC: American Association for the Advancement of Science</publisher><subject>Aerosols ; Atmosphere - chemistry ; Atmospheric aerosols ; Atmospheric chemistry ; Condensation ; Droplets ; Earth, ocean, space ; Exact sciences and technology ; External geophysics ; Isoprene ; Meteorology ; Organic chemicals ; Organic Chemistry ; Oxidation ; Particle emission ; Particle mass ; Particle Size ; Particles and aerosols ; Particulate emissions ; Particulate Matter - chemistry ; Plant biology ; Potassium ; Potassium - chemistry ; Potassium salts ; Rain - chemistry ; Rain forests ; Rainforests ; Salts ; Salts - chemistry ; Seeds ; South America ; Terpenes ; Trees - chemistry ; Tropical rain forests ; Volatile organic compounds</subject><ispartof>Science (American Association for the Advancement of Science), 2012-08, Vol.337 (6098), p.1075-1078</ispartof><rights>Copyright © 2012 American Association for the Advancement of Science</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2012, American Association for the Advancement of Science</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c509t-5641a8e06ae6c67e48110d7ece220977c3e276b5eb3973715598a73ef1a3f8fd3</citedby><cites>FETCH-LOGICAL-c509t-5641a8e06ae6c67e48110d7ece220977c3e276b5eb3973715598a73ef1a3f8fd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/23268964$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/23268964$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,777,781,800,2871,2872,27905,27906,57998,58231</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26369417$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22936773$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pöhlker, Christopher</creatorcontrib><creatorcontrib>Wiedemann, Kenia T.</creatorcontrib><creatorcontrib>Sinha, Bärbel</creatorcontrib><creatorcontrib>Shiraiwa, Manabu</creatorcontrib><creatorcontrib>Gunthe, Sachin S.</creatorcontrib><creatorcontrib>Smith, Mackenzie</creatorcontrib><creatorcontrib>Su, Hang</creatorcontrib><creatorcontrib>Artaxo, Paulo</creatorcontrib><creatorcontrib>Chen, Qi</creatorcontrib><creatorcontrib>Cheng, Yafang</creatorcontrib><creatorcontrib>Elbert, Wolfgang</creatorcontrib><creatorcontrib>Gilles, Mary K.</creatorcontrib><creatorcontrib>Kilcoyne, Arthur L. D.</creatorcontrib><creatorcontrib>Moffet, Ryan C.</creatorcontrib><creatorcontrib>Weigand, Markus</creatorcontrib><creatorcontrib>Martin, Scot T.</creatorcontrib><creatorcontrib>Pöschl, Ulrich</creatorcontrib><creatorcontrib>Andreae, Meinrat O.</creatorcontrib><title>Biogenic Potassium Salt Particles as Seeds for Secondary Organic Aerosol in the Amazon</title><title>Science (American Association for the Advancement of Science)</title><addtitle>Science</addtitle><description>The fine particles serving as cloud condensation nuclei in pristine Amazonian rainforest air consist mostly of secondary organic aerosol. Their origin is enigmatic, however, because new particle formation in the atmosphere is not observed. Here, we show that the growth of organic aerosol particles can be initiated by potassium-salt—rich particles emitted by biota in the rainforest. These particles act as seeds for the condensation of low- or semi-volatile organic compounds from the atmospheric gas phase or multiphase oxidation of isoprene and terpenes. Our findings suggest that the primary emission of biogenic salt particles directly influences the number concentration of cloud condensation nuclei and affects the microphysics of cloud formation and precipitation over the rainforest.</description><subject>Aerosols</subject><subject>Atmosphere - chemistry</subject><subject>Atmospheric aerosols</subject><subject>Atmospheric chemistry</subject><subject>Condensation</subject><subject>Droplets</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Isoprene</subject><subject>Meteorology</subject><subject>Organic chemicals</subject><subject>Organic Chemistry</subject><subject>Oxidation</subject><subject>Particle emission</subject><subject>Particle mass</subject><subject>Particle Size</subject><subject>Particles and aerosols</subject><subject>Particulate emissions</subject><subject>Particulate Matter - chemistry</subject><subject>Plant biology</subject><subject>Potassium</subject><subject>Potassium - chemistry</subject><subject>Potassium salts</subject><subject>Rain - chemistry</subject><subject>Rain forests</subject><subject>Rainforests</subject><subject>Salts</subject><subject>Salts - chemistry</subject><subject>Seeds</subject><subject>South America</subject><subject>Terpenes</subject><subject>Trees - chemistry</subject><subject>Tropical rain forests</subject><subject>Volatile organic compounds</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc1P3DAQxS1UBAvtmVMrSwipl4A_Yjs-Loi2SEgg0fYaeZ0JeJXE1JMc4K-vtxtA6oWTLc3vvdG8R8gRZ6ecC32GPsDg4ZQLIYUud8iCM6sKK5j8QBaMSV1UzKh9coC4ZizPrNwj-0JYqY2RC_L7PMR7GIKnt3F0iGHq6Z3rRnrr0hh8B0gd0juABmkbU_75ODQuPdGbdO82uiWkiLGjYaDjA9Bl757j8JHstq5D-DS_h-TXt8ufFz-K65vvVxfL68IrZsdC6ZK7Cph2oL02UFacs8aAByGYNcZLEEavFKykNdJwpWzljISWO9lWbSMPydet72OKfybAse4Deug6N0CcsOYVqzjLUv0-qlRpVQ5OvY-ybKi0ERvX4__QdZzSkG_-R0kuytJm6mxL-ZwVJmjrxxT6nGKG6k2R9VxkPReZFV9m32nVQ_PKvzSXgZMZcOhd1yY3-IBvnJbaltxk7vOWW-MY09s8b6lsXvQXVN2uHQ</recordid><startdate>20120831</startdate><enddate>20120831</enddate><creator>Pöhlker, Christopher</creator><creator>Wiedemann, Kenia T.</creator><creator>Sinha, Bärbel</creator><creator>Shiraiwa, Manabu</creator><creator>Gunthe, Sachin S.</creator><creator>Smith, Mackenzie</creator><creator>Su, Hang</creator><creator>Artaxo, Paulo</creator><creator>Chen, Qi</creator><creator>Cheng, Yafang</creator><creator>Elbert, Wolfgang</creator><creator>Gilles, Mary K.</creator><creator>Kilcoyne, Arthur L. 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D.</au><au>Moffet, Ryan C.</au><au>Weigand, Markus</au><au>Martin, Scot T.</au><au>Pöschl, Ulrich</au><au>Andreae, Meinrat O.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Biogenic Potassium Salt Particles as Seeds for Secondary Organic Aerosol in the Amazon</atitle><jtitle>Science (American Association for the Advancement of Science)</jtitle><addtitle>Science</addtitle><date>2012-08-31</date><risdate>2012</risdate><volume>337</volume><issue>6098</issue><spage>1075</spage><epage>1078</epage><pages>1075-1078</pages><issn>0036-8075</issn><eissn>1095-9203</eissn><coden>SCIEAS</coden><abstract>The fine particles serving as cloud condensation nuclei in pristine Amazonian rainforest air consist mostly of secondary organic aerosol. Their origin is enigmatic, however, because new particle formation in the atmosphere is not observed. Here, we show that the growth of organic aerosol particles can be initiated by potassium-salt—rich particles emitted by biota in the rainforest. These particles act as seeds for the condensation of low- or semi-volatile organic compounds from the atmospheric gas phase or multiphase oxidation of isoprene and terpenes. Our findings suggest that the primary emission of biogenic salt particles directly influences the number concentration of cloud condensation nuclei and affects the microphysics of cloud formation and precipitation over the rainforest.</abstract><cop>Washington, DC</cop><pub>American Association for the Advancement of Science</pub><pmid>22936773</pmid><doi>10.1126/science.1223264</doi><tpages>4</tpages></addata></record> |
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subjects | Aerosols Atmosphere - chemistry Atmospheric aerosols Atmospheric chemistry Condensation Droplets Earth, ocean, space Exact sciences and technology External geophysics Isoprene Meteorology Organic chemicals Organic Chemistry Oxidation Particle emission Particle mass Particle Size Particles and aerosols Particulate emissions Particulate Matter - chemistry Plant biology Potassium Potassium - chemistry Potassium salts Rain - chemistry Rain forests Rainforests Salts Salts - chemistry Seeds South America Terpenes Trees - chemistry Tropical rain forests Volatile organic compounds |
title | Biogenic Potassium Salt Particles as Seeds for Secondary Organic Aerosol in the Amazon |
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