Atmospheric aerosol sampling by an annular denuder system and a high-volume PM{sub 10} sampler

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · Environment International

DOI:https://doi.org/10.1016/0160-4120(95)00024-F· OSTI ID:79276

Tsai, Chuen-Jinn; Huang, Hsin-Ying ^[1]

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1. National Chiao Tung Univ., Taiwan (China)

An Annular Denuder System (ADS) was used to study sampling errors of total PM{sub 10} and soluble ionic species concentrations determined by the high volume PM{sub 10} (HVPM{sub 10}) sampler. Experimental results show that in the HVPM{sub 10} sampler, more alkaline glass fiber filters collect more sulfate and nitrate but less ammonium ion than quartz filters. However, total PM{sub 10} concentrations do not seem to depend on the types of filters. Artifact sulfate concentrations in glass fiber filters of the HVPM{sub 10} sampler are found to exceed those predicted by the Coutant`s model. It is suggested that artifact sulfate and nitrate not only occur within filters but also in particle deposits. Chloride ion concentrations in the filters of the HVPM{sub 10} sampler are underestimated significantly due to evaporative loss of ammonium chloride. 17 refs., 8 figs., 1 tab.

• Sponsoring Organization: USDOE
• OSTI ID: 79276
• Journal Information: Environment International, Journal Name: Environment International Journal Issue: 3 Vol. 21; ISSN ENVIDV; ISSN 0160-4120
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORS
ECOLOGICAL CONCENTRATION
EVALUATION
NITRATES
PARTICULATES
SULFATES