Chapter
Jul 8, 2013
Survival of Fecal Indicator Bacteria on Pervious Environmental Surfaces
Authors: Brad Wilson [email protected] and Robert PittAuthor Affiliations
Publication: World Environmental and Water Resources Congress 2013: Showcasing the Future
Abstract
Because of difficulties in the measurement of sewage-borne pathogens, the microbiological quality of water is typically characterized and regulated on the basis of indicator species. These organisms are assumed to derive from a common source with pathogens of interest and to arrive in, survive in, and move through watershed environments in numbers that sufficiently correlate to those pathogens to provide meaningful information concerning health risks. Commonly used fecal indicator bacteria (FIBs, notably E. coli, and Enterococcus spp.), however, may derive from sources other than sewage and survive in the (nonenteric) environment at rates divergent from those of the pathogens they are presumed to indicate. Reliance on the use of FIBs to manage microbiological risk of environmental waters would be better informed by knowledge of the nonsewage contributions of FIBs to stormwater runoff. In an ongoing effort to model background (i.e., of nonhuman origin) discharges of indicator species from stormwater source areas, results of a (25) study into environmental factors relevant to survival (modeled as a log-linear segmented relationship with unknown breakpoints) of E. coli and Enterococci on pervious (soil) surfaces over extended time is presented.
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© 2013 American Society of Civil Engineers.
History
Published online: Jul 8, 2013
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Authors
Affiliations
Graduate student, Dept. of Civil, Const. and Environmental Engineering, Univ. of Alabama, Tuscaloosa, AL, 2118 Antietam Ave., Tuscaloosa, AL 35406. E-mail: [email protected]
Robert Pitt
P.E.
M.ASCE
Cudworth Professor, Urban Water Systems, Dept. of Civil, Const. and Environmental Engineering, Univ. of Alabama, Tuscaloosa, AL
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.