A national study on the residential impact of biological aerosols from the land application of biosolids

J. P. Brooks, B. D. Tanner, K. L. Josephson, Charles P Gerba, C. N. Haas, Ian L Pepper

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Aims: The purpose of this study was to evaluate the community risk of infection from bioaerosols to residents living near biosolids land application sites. Methods and Results: Approximately 350 aerosol samples from 10 sites located throughout the USA were collected via the use of six SKC Biosamplers®. Downwind aerosol samples from biosolids loading, unloading, land application and background operations were collected from all sites. All samples were analysed for the presence of HPC bacteria, total coliform bacteria, Escherichia coli, Clostridium perfringens, coliphage, enteroviruses, hepatitis A virus and norovirus. Total coliforms, E. coli, C. perfringens and coliphage were not detected with great frequency from any sites, however, biosolids loading operations resulted in the largest concentrations of these aerosolized microbial indicators. Microbial risk analyses were conducted on loading and land application operations and their subsequent residential exposures determined. Conclusions: The greatest annual risks of infection occurred during loading operations, and resulted in a 4 × 10-4 chance of infection from inhalation of coxsackievirus A21. Land application of biosolids resulted in risks that were <2 × 10-4 from inhalation of coxsackievirus A21. Overall bioaerosol exposure from biosolids operations poses little community risk based on this study. Significance and Impact of the Study: This study evaluated the overall incidence of aerosolized microorganisms from the land application of biosolids and subsequently determined that microbial risks of infection were low for residents close to biosolids application sites.

Original languageEnglish (US)
Pages (from-to)310-322
Number of pages13
JournalJournal of Applied Microbiology
Volume99
Issue number2
DOIs
StatePublished - 2005

Fingerprint

bioaerosols
land application
biosolids
Aerosols
Enterovirus
Coliphages
Clostridium perfringens
coliphages
Inhalation
aerosols
infection
breathing
Infection
Coxsackievirus Infections
Escherichia coli
Bacteria
Norovirus
Hepatitis A virus
coliform bacteria
sampling

Keywords

  • Aerosol
  • Bioaerosol
  • Biosolids
  • Pathogens
  • Risk

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Applied Microbiology and Biotechnology
  • Biotechnology
  • Microbiology

Cite this

A national study on the residential impact of biological aerosols from the land application of biosolids. / Brooks, J. P.; Tanner, B. D.; Josephson, K. L.; Gerba, Charles P; Haas, C. N.; Pepper, Ian L.

In: Journal of Applied Microbiology, Vol. 99, No. 2, 2005, p. 310-322.

Research output: Contribution to journalArticle

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