Comparison of Two Ambient Beta Gauge PM10 Samplers

Chuen-Tinn Tsai*, Yu Hsiang Cheng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


This paper reports on the performance of the Kimoto 180 sampler and the Wedding ambient PM10 beta gauge sampler. Monodisperse ammonium fluorescein test particles were generated in the laboratory and used to determine the penetration curve of the Kimoto 180 cyclonic inlet. It was found that the actual DpaSOof the Kimoto 180 inlet, 3.5 (xm, is much lower than the designated standard value, 10 um. In the field test, the two beta gauge samplers were collocated with an Andersen SA1200 high-volume sampler to compare their measured daily average PM10 concentrations. The low Dpa50 of the Kimoto 180 inlet serves to explain why its daily average PM10 concentrations were much lower than the actual PM10 concentrations found in the field study. In addition, the PM10 concentrations of the Kimoto 180 beta gauge sampler were found to be seriously affected by the water vapor content of the ambient air. In contrast, the daily average PM10 concentrations of the Wedding beta gauge sampler were found to be more accurate, and influences by ambient conditions were insignificant

Original languageEnglish
Pages (from-to)142-147
Number of pages6
JournalJournal of the Air and Waste Management Association
Issue number2
StatePublished - 1 Feb 1996

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