An isokinetic total suspended particle sampler for measurement of emissions from confinement animal buildings

Joshua W. McClure, Yuanhui Zhang, Sheryll Jerez

Research output: Contribution to journalConference articlepeer-review


Confinement animal buildings present a unique challenge when trying to sample representative particulate matter (PM) concentrations. The inside of the building is basically an area source, but the exhaust consists of a number of wall mounted fans blowing directly out of the building, which means that there is no ducting from which to sample. PM emission and ventilation rates can vary tens of times throughout a single day, making short term point sampling inaccurate. In addition, the flow rates near the fans are around 1 to 5 m/s, which is well above calm air sampling conditions, but below typical isokinetic sampling conditions. To sample PM in this environment a pseudo-isokinetic sampling head has been developed. This sampling head currently fits into a standard 37 mm plastic filter cassette, thus making a relatively inexpensive TSP sampler. The sampler is placed upstream of the fan facing the entering airflow. The sampling head size is chosen to match the average flow of the entering air, recognizing that the flow is likely to deviate throughout the sampling period. This paper discusses the development and testing of the sampling system for measurement of PM emissions from confinement animal buildings.

Original languageEnglish (US)
Pages (from-to)2045-2058
Number of pages14
JournalProceedings of the Air and Waste Management Association's Annual Meeting and Exhibition
StatePublished - 2004
EventProceedings of the A and WMA's 97th Annual Conference and Exhibition; Sustainable Development: Gearing Up for the Challenge - Indianapolis, IN, United States
Duration: Jun 22 2004Jun 25 2004


  • CAFO
  • Confined
  • Confinement Animal Buildings
  • Dust
  • Emissions
  • Isokinetic
  • Particulates
  • Sampling
  • TSF
  • Total Suspended Particles

ASJC Scopus subject areas

  • General Engineering


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