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. 1996 Jan;62(1):296–299. doi: 10.1128/aem.62.1.296-299.1996

Occurrence of airborne bacteria and pathogen indicators during land application of sewage sludge.

S D Pillai 1, K W Widmer 1, S E Dowd 1, S C Ricke 1
PMCID: PMC167798  PMID: 8572708

Abstract

Glass impingers (AGI-30) were used at a commercial sludge application site to determine the levels of airborne bacteria and pathogen indicators. Even though heterotrophic bacteria averaged 10(5) CFU/m3, none of the sites showed the presence of Salmonella spp. or indicators such as fecal coliforms or coliphages. Indicators such as H2S producers and pathogenic clostridia were present in locations having significant physical agitation of the sludge material. PCR-based ribotyping using the 16S-23S interspacer region is a promising method to identify the genetic relatedness and origins of airborne clostridia.

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Selected References

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