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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>
</journal-title-group>
<issn pub-type="epub">1680-7375</issn>
<publisher><publisher-name>Copernicus GmbH</publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/acpd-11-33733-2011</article-id>
<title-group>
<article-title>Development and uncertainty analysis of a high-resolution NH&lt;sub&gt;3&lt;/sub&gt; emissions inventory and its implications with precipitation over the Pearl River Delta region, China</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Zheng</surname>
<given-names>J. Y.</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>Yin</surname>
<given-names>S. S.</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>Kang</surname>
<given-names>D. W.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Che</surname>
<given-names>W. W.</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>Zhong</surname>
<given-names>L. J.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>School of Environmental Science and Engineering, South China University of Technology, University Town, Guangzhou 510006, China</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Pearl River Delta Atmospheric Environmental Research Joint Laboratory, Guangzhou 510006, China</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Computer Science Corporation, Research Triangle Park, NC 27709, USA</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>Guangdong Provincial Environmental Monitoring Center, Guangzhou 510045, China</addr-line>
</aff>
<pub-date pub-type="epub">
<day>22</day>
<month>12</month>
<year>2011</year>
</pub-date>
<volume>11</volume>
<issue>12</issue>
<fpage>33733</fpage>
<lpage>33783</lpage>
<permissions>
<license xlink:type="simple">
<license-p>This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
</license>
</permissions>
<self-uri xlink:href="http://www.atmos-chem-phys-discuss.net/11/33733/2011/acpd-11-33733-2011.html">This article is available from http://www.atmos-chem-phys-discuss.net/11/33733/2011/acpd-11-33733-2011.html</self-uri>
<self-uri xlink:href="http://www.atmos-chem-phys-discuss.net/11/33733/2011/acpd-11-33733-2011.pdf">The full text article is available as a PDF file from http://www.atmos-chem-phys-discuss.net/11/33733/2011/acpd-11-33733-2011.pdf</self-uri>
<abstract>
<p>Detailed NH&lt;sub&gt;3&lt;/sub&gt; emission inventories are important to understand various
atmospheric processes, air quality modeling study, air pollution management,
and related environmental and ecological issues. A high-resolution NH&lt;sub&gt;3&lt;/sub&gt;
emission inventory is developed based on the state-of-the-science
techniques, the up-to-date information, and the advanced expert knowledge
for the Pearl River Delta region, China. To provide model-ready emissions
input, this NH&lt;sub&gt;3&lt;/sub&gt; emissions inventory is spatially allocated to
3 km &amp;times; 3 km grid cells using source-based spatial surrogates with
Geographical Information System (GIS) technology. For NH&lt;sub&gt;3&lt;/sub&gt; emissions, 9
source categories and 45 sub-categories are identified in this region, and
detailed spatial and temporal characteristics are investigated. Results show
that livestock is by far the most important NH&lt;sub&gt;3&lt;/sub&gt; emission source that
contributes about 61.7% of the total NH&lt;sub&gt;3&lt;/sub&gt; emissions in this region,
followed by nitrogen fertilizer applications (~23.7%) and
non-agricultural sources (~14.6%). Uncertainty analysis reveals
that the uncertainties associated with different sources vary from source to
source and the magnitude of the uncertainty associated with a specific
source mainly depends on the degree of accuracy of the emission factors and
activity data as well as the technique used to perform the estimate. The
validity of the NH&lt;sub&gt;3&lt;/sub&gt; emissions inventory is justified by the trend
analysis of local rainwater compositions, especially pH values, the
Ca&lt;sup&gt;2+&lt;/sup&gt; + NH&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt;/SO&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;2&amp;minus;&lt;/sup&gt; + NO&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;&amp;minus;&lt;/sup&gt; ratios, and
NH&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt; concentrations which are directly or indirectly related to
NH&lt;sub&gt;3&lt;/sub&gt; emissions. Based on the analysis, recommendations for additional
work to further improve the accuracy of the NH&lt;sub&gt;3&lt;/sub&gt; emissions inventory are
also discussed and proposed.</p>
</abstract>
<counts><page-count count="51"/></counts>
</article-meta>
</front>
<body/>
<back>
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