Year: 2008
Type: conference-paper
Abstract: The probabilistic health risks of rotavirus and Ascaris infections associated with different scenarios of\ndiluted wastewater and faecal sludge agricultural reuse in Ghana were estimated based on the Quantitative\nMicrobial Risk Assessment (QMRA) approach. The annual risks of rotavirus and Ascaris infections\nassociated with diluted wastewater reuse scenarios were 10-2 and 10-3 to 10-4 respectively compared with\nthe WHO tolerable health risk of 10-4 per person per year. The risk of Ascaris infection for the different\nscenarios of faecal sludge reuse ranged from 10-4 to 10-2 while it was <10-14 to 10-1 for rotavirus infections\nper single exposure. The treatment of faecal sludge significantly reduced the risk of rotavirus infections but\nhad less effect on the reduction of Ascaris infections. It is stressed that the estimated risks of infection need\nto be validated against follow-up data obtained from epidemiological investigations coupled with studies\non different health risk barriers.
Language: English
Subfield: Waste Management and Disposal
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2258902066