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http://dx.doi.org/10.5322/JESI.2014.5.819

Characteristics of Metallic and Ionic Concentrations in PM10 and PM2.5 in Busan  

Jeon, Byung-Il (Department of Environmental Engineering, Silla University)
Hwang, Yong-Sik (Institute for Environmental Health, Pusan National University)
Publication Information
Journal of Environmental Science International / v.23, no.5, 2014 , pp. 819-827 More about this Journal
Abstract
This study analyzes the chemical composition of metallic elements and water-soluble ions in $PM_{10}$ and $PM_{2.5}$. $PM_{10}$ and $PM_{2.5}$ concentrations in Busan during 2010-2012 were $97.2{\pm}67.5$ and $67.5{\pm}32.8{\mu}g/m^3$, respectively, and the mean $PM_{2.5}/PM_{10}$ concentration ratio was 0.73. The contribution rate of water-soluble ions to $PM_{10}$ ranged from 29.0% to 58.6%(a mean of 38.6%) and that to $PM_{2.5}$ ranged from 33.9% to 58.4%(a mean of 43.1%). The contribution rate of sea salt to $PM_{10}$ was 13.9% for 2011 and 9.7% for 2012, while that to $PM_{2.5}$ was 17.4% for 2011 and 10.1% for 2012. $PM_{10}$ concentration during Asian dust events was $334.3{\mu}g/m^3$ and $113.3{\mu}g/m^3$ during non-Asian dust events, and the $PM_{10}$ concentration ratio of Asian Dust/Non Asian dust was 2.95. On the other hand, the $PM_{2.5}$ concentration in Asian dust was $157.4{\mu}g/m^3$ and $83.2{\mu}g/m^3$ in Non Asian dust, and the $PM_{2.5}$ concentration ratio of Asian Dust/Non Asian dust was 1.89, which was lower than that of $PM_{10}$.
Keywords
$PM_{10}$ and $PM_{2.5}$ concentration; $PM_{2.5}/PM_{10}$ ratio; Metallic elements; Water-soluble ions; Asian Dust;
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