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<front>
<journal-meta>
<journal-id journal-id-type="publisher">ACPD</journal-id>
<journal-title-group>
<journal-title>Atmospheric Chemistry and Physics Discussions</journal-title>
<abbrev-journal-title abbrev-type="publisher">ACPD</abbrev-journal-title>
<abbrev-journal-title abbrev-type="nlm-ta">Atmos. Chem. Phys. Discuss.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">1680-7375</issn>
<publisher><publisher-name></publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/acpd-13-1367-2013</article-id>
<title-group>
<article-title>Source apportionment of ambient fine particle from combined size distribution and chemical composition data during summertime in Beijing</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Liu</surname>
<given-names>Z. R.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Wang</surname>
<given-names>Y. S.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Liu</surname>
<given-names>Q.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Hu</surname>
<given-names>B.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Sun</surname>
<given-names>Y.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Beijing Weather Modification Office, Beijing, China</addr-line>
</aff>
<pub-date pub-type="epub">
<day>14</day>
<month>01</month>
<year>2013</year>
</pub-date>
<volume>13</volume>
<issue>1</issue>
<fpage>1367</fpage>
<lpage>1397</lpage>
<permissions>
<copyright-statement>Copyright: &#x000a9; 2013 Z. R. Liu et al.</copyright-statement>
<copyright-year>2013</copyright-year>
<license license-type="open-access">
<license-p>This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit <ext-link ext-link-type="uri"  xlink:href="https://creativecommons.org/licenses/by/3.0/">https://creativecommons.org/licenses/by/3.0/</ext-link></license-p>
</license>
</permissions>
<self-uri xlink:href="https://acp.copernicus.org/preprints/13/1367/2013/acpd-13-1367-2013.html">This article is available from https://acp.copernicus.org/preprints/13/1367/2013/acpd-13-1367-2013.html</self-uri>
<self-uri xlink:href="https://acp.copernicus.org/preprints/13/1367/2013/acpd-13-1367-2013.pdf">The full text article is available as a PDF file from https://acp.copernicus.org/preprints/13/1367/2013/acpd-13-1367-2013.pdf</self-uri>
<abstract>
<p>Continuous particle number concentration and chemical
composition data were collected over one month during summertime in Beijing
to investigate the source apportionment of ambient fine particles.
Particle size distributions from 15 nm to 2.5 μm in diameter and
composition data, such as organic matter, sulfate, nitrate, ammonium,
chlorine, and gaseous pollutants, were analyzed using positive matrix
factorisation (PMF) which indentified eight factors: cooking, solid mode
exhaust, nucleation mode exhaust, accumulation mode, secondary nitrate,
secondary sulfate, coal-fired power plant and road dust. Nearly two-thirds
of particle number concentrations were attributed to cooking (22.8%) and
motor vehicle (37.5%), whereas road dust, coal-fired power plant and
regional sources contributed 69.0% to particle volume concentrations.
Local and remote sources were distinguished using size distributions
associated with each factor. Local sources were generally characterised by
unimodal or bimodal number distributions, consisting mostly of particles
less 0.1 μm in diameter, and regional sources were defined by mostly
accumulation mode particles. Nearly one third of secondary nitrate and
secondary sulfate was transported from the surrounding areas of Beijing
during study period. Overall the introduction of combination of particle
number concentration and chemical composition in PMF model is successful at
separating the components and quantifying relative contributions to the
particle number and volume population in a complex urban atmosphere.</p>
</abstract>
<counts><page-count count="31"/></counts>
</article-meta>
</front>
<body/>
<back>
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