Particle and Aerosol Research Vol. 5, No. 2, June 2009 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Comparison of particle size distribution and particle number concentration measured by APS 3321 and Dust Monitor 1.108
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Abstracts
The size distribution and number concentration of atmospheric aerosol were measured and compared using APS
3321 and Dust Monitor 1.108. The particle size distribution and number concentration measured by two devices
were also compared at a particle generation system of standard PSL and fly ash. The number concentration of atmospheric
aerosol measured by APS was higher than that by Dust Monitor in particle size range of less than 3.0 ¥ìm, but
there was good accordance between them in particle size range of over 3.0 ¥ìm. In the particle generation system of
PSL and fly ash, different measurement results were shown because the particle concentration was higher than that
of atmospheric aerosol. The number concentration measured by Dust Monitor was higher than that by APS in most
particle size ranges. However, the peak concentration of PSL particles measured by Dust Monitor was lower than
that by APS. The difference of the collection efficiency in a scrubber by APS and Dust Monitor measurement was
less than 10%, but in the particle size of 1.5 ¥ìm, it was over 20%.
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