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The purpose of the document is to focus on microbial contaminants of municipal wastewater sludges that have been actually or potentially implicated in producing human illness; it summarizes available data on the occurrence, transport and fate of these pathogens in the marine environment; and describes the possible hazards to human health associated with the disposal of sludges in open ocean waters. Following the presentation of background information, a discussion of risks associated with ocean disposal of sludge are presented.
U.S. EPA. Qualitative Pathogen Risk Assessment for Ocean Disposal of Municipal Sludge. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/6-88/010 (NTIS PB89126593).