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RECORD NUMBER: 686 OF 1455

Main Title Pathogen Risk Assessment Model for Land Application of Municipal Sewage Sludge (LANDAPP Version 4.02) (for Microcomputers).
CORP Author Environmental Protection Agency, Washington, DC. Office of Research and Development.
Publisher Oct 96
Year Published 1996
Stock Number PB97-501282
Additional Subjects Sewage sludge ; Landfills ; Risk assessment ; Public health ; Data file ; Sludge disposal ; Land disposal ; Municipal wastes ; Health hazards ; Infections ; Pathogens ; Bacteria ; Viruses ; Parasites ; Environmental exposure pathway ; Environmental transport ; Soil contamination ; Land pollution ; Diskettes ; Saturated zone ; Unsaturated zone
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NTIS  PB97-501282 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 1 diskette
Abstract This model evaluates the potential risk to humans from exposure to pathogenic microorganisms following land application of municipal sewage sludge. The five municipal sewage sludge management practices addressed by the model are: (l) application of liquid sludge for production of commercial crops for human consumption; (2) application of liquid sludge to grazed pasture; (3) application of liquid sludge for production of crops processed for animal consumption; (4) application of dried or composted sludge to residential gardens; and (5) application of dried or composted sludge to residential lawns. The various locations, states or activities in which sludge or sludge-associated pathogens exist are called compartments. They vary to some extent among practices. The computer model represents the compartments and transfers among compartments of the five management practices. In each compartment, pathogens either increase, decrease or remain the same in number with time, as specified by 'process functions' (growth, die-off or no population changes) and 'transfer functions' (movement between compartments). The population in each compartment, therefore, generally varies with time and is determined by a combination of initial pathogen input, 'transfer functions' and 'process functions.'
Supplementary Notes For background, see Volume 1, Methodology, PB90-171901 and Volume II, User's Manual, PB90-171919. See also PB96-501911.
Availability Notes The datafile is on one 3 1/2 inch DOS diskette, 1.44M high density. Documentaiton included; may be ordered separately as PB97-116875.
Category Codes 68C#; 57K#; 57U
NTIS Prices CP D02
Primary Description 600/00
Document Type NT
Cataloging Source NTIS/MT
Control Number 712601160
Origin NTIS
Type CAT