Relationship between biologically fluorescent aerosol and local meteorological conditions

  • Santarpia J
  • Ratnesar-Shumate S
  • Gilberry J
 et al. 
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Abstract

Time-resolved characterization of biological aerosol is important both for understanding environmental processes that affect biological aerosols and for determining realistic test conditions for the evaluation of bioaerosol detection systems. Very little work has been done to develop an understanding of the temporal fluctuations in bioaerosol concentration. During an experiment from 1?10 November 2008 ambient biological aerosol and meteorological data were collected. A FLIR/ICx/S3I Instantaneous Bioaerosol Analysis and Collection sensor was used to count both the biological and nonbiological aerosol in two size bins. The data indicate that the ambient relative humidity affects the optically observable concentration of biological aerosol with higher relative humidity generally associated with higher biological aerosol concentrations. The short timescale over which these correlations exist implies an aerosol process, rather than a change in aerosol source. ? 2013 American Association for Aerosol Research

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Authors

  • Joshua L. Santarpia

  • Shanna Ratnesar-Shumate

  • Jerome U. Gilberry

  • Jason J. Quizon

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