Sd. Pillai et al., OCCURRENCE OF AIRBORNE BACTERIA AND PATHOGEN INDICATORS DURING LAND APPLICATION OF SEWAGE-SLUDGE, Applied and environmental microbiology, 62(1), 1996, pp. 296-299
Glass impingers (AGI-30) were used at a commercial sludge application
site to determine the levels of airborne bacteria and pathogen indicat
ors. Even though heterotrophic bacteria averaged 10(5) CFU/m(3), none
of the sites shelved the presence of Salmonella spp, or indicators suc
h as fecal coliforms or coliphages. Indicators such as H2S producers a
nd 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 g
enetic relatedness and origins of airborne clostridia.