Record Display for the EPA National Library Catalog


Main Title Development of a qualitative pathogen risk assessment methodology for municipal sludge landfilling.
CORP Author Environmental Protection Agency, Cincinnati, OH. Environmental Criteria and Assessment Office.
Publisher Environmental Criteria and Assessment Office, Office of Health and Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1988
Report Number EPA/600/6-88/006
Stock Number PB88-198544
OCLC Number 18898552
Subjects Sanitary landfills--Environmental aspects--United States ; Sewage disposal in the ground--Environmental aspects--United States ; Sewage sludge--Environmental aspects--United States
Additional Subjects Health hazards ; Infectious diseases ; Municipal wastes ; Risk assessment ; Sewage sludge ; Microorganisms ; Pathogens ; Landfills
Internet Access
Description Access URL
Local Library Info
Library Local Subject Local Note
N/A EPA/600/6-88/006 see EPAX 8811-0082
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-6-88-006 Headquarters Library/Washington,DC 04/04/2016
EJBD  EPA 600-6-88-006 Headquarters Library/Washington,DC 07/11/2016
EKBD  EPA/600/6-88/006 Research Triangle Park Library/RTP, NC 12/31/1988
EKCD  EPA/600/6-88/006 CEMM/GEMMD Library/Gulf Breeze,FL 07/25/2018
ESAD  EPA 600-6-88-006 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB88-198544 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 1 volume (various pagings) : illustrations ; 28 cm
The report addresses potential risks from microbiological pathogens present in municipal sludge disposed of in landfills. Municipal sludges contain a wide variety of bacteria, viruses, protozoa, helminths and fungi. Survival characteristics of pathogens are critical factors in assessing the risks associated with potential transport of microorganisms from the sludge-soil matrix to the groundwater environment of landfills. Various models are discussed for predicting microbial die-off. The order of persistence in the environment from longest to shortest survival time appears to be helminth eggs > viruses > bacteria > protozoan cysts. Whether or not a pathogen reaches groundwater and is transported to drinking-water wells depends on a number of factors, including initial concentration of the pathogen, survival of the pathogen, number of pathogens that reach the sludge-soil interface, degree of removal through the unsaturated and saturated soil zones, and the hydraulic gradient. The degree to which each of these factors will influence the probability of pathogens entering groundwater cannot be determined precisely. Information on the fate of pathogens at existing landfills is sorely lacking. Additional laboratory and field studies are needed to determine the degree of pathogen leaching, survival and transport in groundwater in order to estimate potential risks from pathogens at sludge landfills with reasonable validity.
Distributed to depository libraries in microfiche. "May 1986." Includes bibliographical references (pages 12-1-12-25). "EPA/600/6-88/006."