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<p><strong>Chemical characterization of particulate matter at Sinhagad, a high altitude station in Pune, India</strong></p>

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Title Statement <p><strong>Chemical characterization of particulate matter at Sinhagad, a high altitude station in Pune, India</strong></p>
 
Added Entry - Uncontrolled Name Satsangi, P. Gursumeeran ; Department of Chemistry, University of Pune, Pune-411007
 
Uncontrolled Index Term Chemical composition, acidity, neutralization potential, sources
 
Summary, etc. <p>PM<sub>10</sub> and PM<sub>2.5</sub> samples were collected at Sinhagad, a rural high altitude location, nearby Pune, India, during Nov. 2008 to April 2009. The average concentrations of PM<sub>10, </sub>PM<sub>2.5 </sub>and PM<sub>10-2.5 </sub>at Sinhagad were 35.8, 14.1 and 21.7 µg m<sup>-3</sup>, respectively. The average ratio of PM<sub>2.5</sub>/PM<sub>10</sub> (0.39) suggested that PM<sub>10</sub> at study area is dominated by primary particulate emissions by natural activities. In PM<sub>10</sub>, anions and cations were contributed 33% and 67% whereas in PM<sub>2.5</sub> these were 43% and 57%. In both PM<sub>10</sub> and PM<sub>2.5</sub>, contribution of marine components viz. Na<sup>+</sup>, Cl<sup>-</sup> and Mg<sup>2+</sup> were found to be 58% and 49%, respectively, reflecting Arabian sea is the major source of these components.  All the ionic components in PM<sub>10</sub> showed higher concentration in summer whereas in PM<sub>2.5</sub>, secondary particles (SO<sub>4</sub><sup>2-</sup>, NO<sub>3</sub><sup>-</sup> and NH<sub>4</sub><sup>+</sup>) showed higher concentration in winter. The order of neutralization factor was found to be Ca<sup>2+</sup> &gt; Mg<sup>2+</sup> &gt; NH<sub>4</sub><sup>+</sup> &gt; K<sup>+</sup><sub> </sub>for PM<sub>10</sub> and Ca<sup>2+</sup> &gt; NH<sub>4</sub><sup>+</sup> &gt;Mg<sup>2+ </sup>&gt; K<sup>+</sup> for PM<sub>2.5. </sub>During the sampling period, major contribution from marine sources was observed (43% for PM<sub>2.5 </sub>and 53% for PM<sub>10</sub>) followed by crustal sources (PM<sub>2.5</sub>: 25% and PM<sub>10</sub>: 30%) and anthropogenic sources (PM<sub>2.5</sub>:<sub> </sub>32% and PM<sub>10</sub>:17%).</p>
 
Publication, Distribution, Etc. Indian Journal of Radio & Space Physics (IJRSP)
2017-01-05 09:02:43
 
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http://op.niscair.res.in/index.php/IJRSP/article/view/4591
 
Data Source Entry Indian Journal of Radio & Space Physics (IJRSP); ##issue.vol## 43, ##issue.no## 4-5 (2014): Indian Journal of Radio & Space Physics
 
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