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<article language="en">
	<journal>
		<journal_title>Atmospheric Chemistry and Physics Discussions</journal_title>
		<journal_url>www.atmos-chem-phys-discuss.net</journal_url>
		<issn>1680-7367</issn>
		<eissn>1680-7375</eissn>
		<volume_number>9</volume_number>
		<issue_number>3</issue_number>
		<publication_year>2009</publication_year>
	</journal>
	<doi>10.5194/acpd-9-12781-2009</doi>
	<article_url>http://www.atmos-chem-phys-discuss.net/9/12781/2009/</article_url>
	<abstract_html>http://www.atmos-chem-phys-discuss.net/9/12781/2009/acpd-9-12781-2009.html</abstract_html>
	<fulltext_pdf>http://www.atmos-chem-phys-discuss.net/9/12781/2009/acpd-9-12781-2009.pdf</fulltext_pdf>
	<start_page>12781</start_page>
	<end_page>12827</end_page>
	<publication_date>2009-06-04</publication_date>
	<article_title content_type="html">VOC measurements within a boreal forest during spring 2005: the role of monoterpenes and sulphuric acid in selected intense nucleation events</article_title>
	<authors>
		<author numeration="1" affiliations="1,2">
			<name>G. Eerdekens</name>
			<email>eerdekns@mpch.mainz.mpg.de</email>
		</author>
		<author numeration="2" affiliations="1,3">
			<name>N. Yassaa</name>
		</author>
		<author numeration="3" affiliations="1">
			<name>V. Sinha</name>
		</author>
		<author numeration="4" affiliations="4">
			<name>P. P. Aalto</name>
		</author>
		<author numeration="5" affiliations="5">
			<name>V. Fiedler</name>
		</author>
		<author numeration="6" affiliations="5">
			<name>H. Aufmhoff</name>
		</author>
		<author numeration="7" affiliations="6">
			<name>F. Arnold</name>
		</author>
		<author numeration="8" affiliations="4">
			<name>M. Kulmala</name>
		</author>
		<author numeration="9" affiliations="1">
			<name>J. Williams</name>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Air Chemistry Department, Max-Planck Institute of Chemistry, Mainz, Germany</affiliation>
		<affiliation numeration="2" content_type="html">Plant and Vegetation Ecology, University of Antwerp, Wilrijk, Belgium</affiliation>
		<affiliation numeration="3" content_type="html">Faculty of Chemistry, University of Sciences and Technology Houari Boumediene, Algiers, Algeria</affiliation>
		<affiliation numeration="4" content_type="html">Department of Physics, University of Helsinki, Helsinki, Finland</affiliation>
		<affiliation numeration="5" content_type="html">Atmospheric trace gases, Institute of Atmospheric Physics, DLR, Oberpfaffenhofen-Wessling, Germany</affiliation>
		<affiliation numeration="6" content_type="html">Atmospheric Trace Gases and Ions, Max-Planck-Institute for Nuclear Physics, Heidelberg, Germany</affiliation>
	</affiliations>
	<abstract content_type="html">In this study we present measurements of selected trace gases and aerosol
made in a boreal forest during the BACCI-QUEST IV intensive field campaign
in HyytiÃ¤lÃ¤, Finland in April 2005. Several clear aerosol
&quot;nucleation events&quot; were observed and characterized. One type of &quot;event&quot;
occurred synchronously with huge increases in monoterpenes, while a second
event type correlated instead with sulphuric acid. Here we elucidate the
origin of these two distinct forms of aerosol production at the
HyytiÃ¤lÃ¤ site using the measurement data, airmass back trajectories
and the optical stereoisomery of monoterpenes.</abstract>
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</article>

