Animal waste, water quality and human health

• Main Author: Dufour, Al
• Format: eBook Book
• Language: English
• Published: London IWA Pub 2012; Geneva World Health Organization; IWA Publishing
• Edition: 1
• Series: WHO Water Series
• Subjects: Animal droppings; Animal waste; Animals as carriers of disease; Enterobacteriaceae; Environmental health; Pathogenic microorganisms; Pollution; Public health; Water; Water quality; Waterborne infection; Zoonoses
• ISBN: 9781780401232; 178040123X; 9789241564519; 9241564512

Domestic animals contaminate recreational waters and drinking-water sources with excreta and pathogens; but this threat to public health is inadequately understood and is insufficiently addressed in regulations. More than 85% of the world's faecal wastes is from domestic animals such as poultry cattle sheep and pigs. These animals harbor zoonotic pathogens that are transported in the environment by water especially runoff. However little information exists on health effects associated with exposure to this potential hazard to human health; and water standards focused on control of human faecal contamination do reflect the contribution of non-human faecal contamination to risk. Does compliance with current monitoring practices using microbial indicators provide protection against animal and bird sources of fecal contamination? Prepared with contributions from a group of international experts this book considers microbial contamination from domestic animal and bird sources and explores the health hazards associated with this microbial contamination and approaches to protecting public health.This book will be of interest to regulators with responsibility for recreational waters drinking-water quality and water reuse; policymakers working in water quality public health and agriculture; decision makers responsible for livestock management; and scientists and practitioners concerned with many affected subjects. Topics covered include: . Credible waterborne zoonotic pathogens are discussed and ranked according to their potential hazard level. Each pathogen is described with regard to their sources reservoirs and infectivity. . Faecal production rates of various domestic animals are discussed alongside pathogen transmission in animal populations pathogen prevalence in animals and supershedders . . Transport of faecal indicator organisms and their episodic occurrence in catchments. . Interventions for improving food safety and reducing production losses. . The impact of interventions e.g. enhanced attenuation and storage to prevent spills; benchmarking against best management practices to reduce diffuse source contamination. . Models to inform design of farm-scale best management practices and the effectiveness of best management practices for attenuating pathogen transport within catchments. . The complex nature of human exposure to zoonotic waterborne pathogens; including the relationships among livestock waste contamination water impairment zoonotic pathogens and human infection and illness. . Human exposure interventions include case studies that discuss eradicating disease in discharging populations adding filtration to minimal treated water to reduce Cryptosporidium occurrence and UV disinfection of beach waters to reduce beach postings. . Indicators sanitary surveys and source attribution techniques; risk assessment of exposure to zoonotic pathogens including an interactive risk comparison approach. . A review of epidemiological studies that address the relationship between swimmer illness and exposure to waters contaminated by nonhuman fecal wastes. . Economic evaluation of the costs and benefits associated with animal waste management and human health.