Particle and Aerosol Research Vol. 3, No. 2, June 2007 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
PM2.5 inorganic ions in Seoul measured at 2004~2005
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Abstracts
The concentrations of PM2.5 mass, inorganic ions, and related gaseous species were measured by an annular
denuder-filterpack system. Measurements were carried in Seoul for 10 days in each season; Nov. 2004, Jan. 2005,
Mar. 2005, and Jul. 2005, respectively. In each day, two 12-h samples were obtained. The observed concentration
levels were similar to other measurements in Seoul except summer. In summer, a severe air pollution episode was
observed. Further in-depth study on the episode is warranted. No diurnal variation was observed among the concentrations
in each season except HNO3 and HCl. A need to shorter term measurement is raised based on the result.
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