Salt aerosol and bioaerosol production from a sea-salt aerosol generator

D. Voss, H. Maring, K. D. Goodwin

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The performance of a sea-salt aerosol generator constructed for animal and human sea-salt aerosol exposure studies was characterized. The sea-salt aerosol particle number size distribution, the concentration of viable bacteria (heterotrophic, Gram negative enteric bacilli, and Vibrio species), and the amount of aerosolized endotoxin produced by the sea-salt aerosol generator was documented. Seawater used in the generator was collected from several Florida sites. In addition, coastal aerosols were collected directly from a beach site in a preliminary study to compare the performance of the generator to naturally-produced aerosols. Particle size distributions for particles collected during the coastal study were similar to the size distributions produced by the sea-salt aerosol generator, but a much higher concentration of particles was produced by the generator. The bubble rise distance and aerosol travel distance could be controlled by running the generator under three different settings (low, medium, and high water heights). The low water height setting (longest aerosol travel distance) yielded the greatest concentration of sodium, which was used as an indicator of sea-salt aerosol. The sea-salt aerosol generator delivered viable bacteria to test filters under all the settings tested, and enrichment factors as high as 22 were calculated. No endotoxin was observed after 1 hr of sampling, suggesting that the enrichment factor for endotoxin was less than 25.

Original languageEnglish (US)
Title of host publicationMarine Pollution
Subtitle of host publicationNew Research
PublisherNova Science Publishers, Inc.
Pages393-422
Number of pages30
ISBN (Print)9781604562422
StatePublished - 2008

ASJC Scopus subject areas

  • Environmental Science(all)

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