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Details

Autor(en) / Beteiligte
Titel
Comparison of Real-Time Instruments Used To Monitor Airborne Particulate Matter
Ist Teil von
  • Journal of the Air & Waste Management Association (1995), 2001-01, Vol.51 (1), p.109-120
Ort / Verlag
Pittsburgh, PA: Taylor & Francis Group
Erscheinungsjahr
2001
Quelle
Taylor & Francis Journals Auto-Holdings Collection
Beschreibungen/Notizen
  • Measurements collected using five real-time continuous airborne particle monitors were compared to measurements made using reference filter-based samplers at Bakers-field, CA, between December 2, 1998, and January 31, 1999. The purpose of this analysis was to evaluate the suitability of each instrument for use in a real-time continuous monitoring network designed to measure the mass of airborne particles with an aerodynamic diam less than 2.5 μm (PM 2.5 ) under wintertime conditions in the southern San Joaquin Valley. Measurements of airborne particulate mass made with a beta attenuation monitor (BAM), an integrating nephelometer, and a continuous aerosol mass monitor (CAMM) were found to correlate well with reference measurements made with a filter-based sampler. A Dusttrak aerosol sampler overestimated airborne particle concentrations by a factor of ~3 throughout the study. Measurements of airborne particulate matter made with a tapered element oscillating microbalance (TEOM) were found to be lower than the reference filter-based measurements by an amount approximately equal to the concentration of NH 4 NO 3 observed to be present in the airborne particles. The performance of the Dusttrak sampler and the integrating nephelometer was affected by the size distribution of airborne particulate matter. The performance of the BAM, the integrating nephelometer, the CAMM, the Dusttrak sampler, and the TEOM was not strongly affected by temperature, relative humidity, wind speed, or wind direction within the range of conditions encountered in the current study. Based on instrument performance, the BAM, the integrating nephelometer, and the CAMM appear to be suitable candidates for deployment in a real-time continuous PM 2.5 monitoring network in central California for the range of winter conditions and aerosol composition encountered during the study.
Sprache
Englisch
Identifikatoren
ISSN: 1096-2247
eISSN: 2162-2906
DOI: 10.1080/10473289.2001.10464254
Titel-ID: cdi_pascalfrancis_primary_854069

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