Public health implications of waste water reuse for fish production

1995 ◽  
Vol 32 (11) ◽  
pp. 145-152 ◽  
Author(s):  
M. El-S. Easa ◽  
M. M. Shereif ◽  
A. I. Shaaban ◽  
K. H. Mancy

Public health and safety concerns have traditionally been the main reasons for resisting waste water reuse for fish farming. Potential adverse health effects in such applications could be avoided if the waste is sufficiently treated before reuse. In a full scale demonstration study in Suez, Egypt, about 400 m3/d of raw sewage were treated using a multi-compartment stabilization pond system, for a total residence time from 21-26 days. The treated effluent conformed to WHO guidelines and was used for rearing two types of local fish (tilapia and gray mullet). The produced fish were subjected to an extensive monitoring program. Bacteriological examination revealed that in all samples the fish muscles were free of bacterial contaminants. Nevertheless, low levels of Escherichia coli andAeromonas hydrophila, were isolated from the surface of the fish. Salmonellae, shigellae and staphylococcus aureus were absent from the surface of all the fish sampled. In addition, toxic metals (Pb, Cu, Zn, and Cd) were found to be at much lower levels than the international advisory limits for human consumption. It is concluded that fish reared in the treated effluent at Suez Experimental Station is (a) suitable for marketing for human consumption, and (b) it's quality is equal or better than fresh water fish in Egypt.

2000 ◽  
Vol 42 (1-2) ◽  
pp. 235-239 ◽  
Author(s):  
K. H. Mancy ◽  
B. Fattal ◽  
S. Kelada

The reuse of wastewater in fish farming is widely practiced to varying degrees in different regions of the world. Recently, the University of Michigan, in collaboration with the National Institute of Oceanography and Fisheries in Egypt, and the Hebrew University of Jerusalem, Israel, conducted a full-scale demonstration study in Egypt where raw sewage was treated and used in fish farming and the irrigation of crops and trees. The whole operation was carefully monitored for microbial pathogens, parasites, and toxic chemicals in the water and the fish. In spite of the fact that the produced fish were quite suitable for human consumption, consumers in Egypt did not accept them. While public health and safety concerns have traditionally been the main reason for resisting wastewater reuse, cultural and consumer behavior seem to be the overriding factors. International guidelines for hazard control in fish farming are not sufficient to change consumer behavior in certain regions of the world.


2020 ◽  
Vol 3 (2) ◽  
pp. 17-24
Author(s):  
Lea Ulm ◽  
Ana Klobucar ◽  
Sandra Sikic ◽  
Zvonimir Sostar ◽  
Mirjana Lana Kosanovic Licina ◽  
...  

The Croatian National Health Care Act defines the areas of activities of the public health institute, including the activities of the epidemiology of infectious diseases and chronic non-communicable diseases, public health, health promotion, environmental health, microbiology, school and adolescent medicine, mental health and addiction prevention at Zagreb City level. This paper reviews the highly variable activities in the Andrija Štampar Teaching Institute of Public Health with the aim of promoting a comprehensive approach to the COVID-19 pandemic. Human and analytical resources in the Institute, activities and rapid implementation of innovations testify to the high capacities for adaptation to emerging risks. In the Institute, it is possible to carry out a whole range of tests and to monitor the environmental factors with predominant impact on human health and safety of the Zagreb environment. The supply of safe water for human consumption in the Republic of Croatia during the current COVID-19 crisis has been uninterrupted and in accordance with applicable legislation. Also, our laboratories have been developing and introducing a method for wastewater testing for SARS-CoV-2 presence. The sludge from wastewater treatment plants is used in agriculture, and potential risks associated with the COVID-19 outbreak should be assessed prior to each application on the soil. Increased use of disinfectants during the epidemic may present a higher risk to the aquatic environment. Air quality monitoring indicates a positive impact on air quality as result of isolation measures.


This thoroughly updated seventh edition is a comprehensive, clearly written, and practical textbook that includes information on both occupational health and environmental health, providing the necessary foundation for recognizing and preventing work-related and environmentally induced diseases and injuries. National and international experts share their knowledge and practical experience in addressing a wide range of issues and evolving challenges in their fields. A multidisciplinary approach makes this an ideal textbook for students and practitioners in public health, occupational and environmental medicine, occupational health nursing, epidemiology, toxicology, occupational and environmental hygiene, safety, ergonomics, environmental sciences, and other fields. Comprehensive coverage provides a clear understanding of occupational and environmental health and its relationships to public health, environmental sciences, and government policy. Practical case studies demonstrate how to apply the basic principles of occupational and environmental health to real-world challenges. Numerous tables, graphs, and photographs reinforce key concepts. Annotated Further Reading sections at the end of chapters provide avenues for obtaining further infomation. This new edition of the book is thoroughly updated and also contains new chapters on climate change, children’s environmental health, liver disorders, kidney disorders, and a global perspective on occupational health and safety.


2021 ◽  
pp. 000276422110031
Author(s):  
Jennifer Sherman ◽  
Jennifer Schwartz

In this article, we provide an early glimpse into how the issues of public health and safety played out in the rural United States during the coronavirus pandemic, focusing on Washington State. We utilize a combination of news articles and press releases, sheriff’s department Facebook posts, publicly available jail data, courtroom observations, in-depth interviews with those who have been held in rural jails, and interviews with rural law enforcement staff to explore this theme. As elected officials, rural sheriffs are beholden to populations that include many who are suspicious of science, liberal agendas, and anything that might threaten what they see as individual freedom. At the same time, they expect local law enforcement to employ punitive measures to control perceived criminal activity in their communities. These communities are often tightly knit, cohesive, and isolated, with high levels of social support both for community members and local leaders, including sheriffs and law enforcement. This complex social context often puts rural sheriffs and law enforcement officers in difficult positions. Given the multiple cross-pressures that rural justice systems faced in the wake of the COVID-19 pandemic, we explore the circumstances in which they attempted to protect and advocate for the health and safety of both their incarcerated and their nonincarcerated populations. We find that certain characteristics of rural communities both help and hinder local law enforcement in efforts to combat the virus, but these characteristics typically favor informal norms of social control to govern community health. Thus, rural sheriff’s departments repeatedly chose strategies that limited their abilities to protect populations from the disease, in favor of appearing tough on crime and supportive of personal liberty.


2021 ◽  
pp. 216507992110238
Author(s):  
Hae Ran Kim

Background: Workplace violence (WPV) is a global public health problem and a threat to the health of Korean workers. This study assessed the prevalence and risk factors of WPV and its association with mental and physical health among Korean workers. Methods: Data obtained for 50,205 respondents to the Fifth Korean Working Conditions Survey were utilized for this study. Verbal abuse, threats, physical violence, and sexual harassment were assessed individually and as a composite for “any WPV.” Workers were characterized by education, income, shift work status, access to a health and safety education program, work sector and overall health. Descriptive analyses and multiple logistic regression analyses were used to estimate the prevalence of WPV and its association with mental and physical health. Findings: Overall, 5.6% of workers reported experiencing one of four forms of WPV. The prevalence of verbal abuse, threats, physical violence, and sexual harassment were 4.9%, 0.7%, 0.2%, and 1.1%, respectively. Most perpetrators were customers. Prevalence of WPV was associated with lower education level, poor health status, long working hours, shift work, and no experience of health and safety education; 9.0% of service workers experienced violence. Workers who had experienced WPV were more likely to experience anxiety, sleep-related problems, depressive symptoms, back pain, headache/eye strain, and overall fatigue. Conclusions/Applications to Practice: Workplace violence is a serious occupational and public health concern in Korea. These results suggest managing WPV may improve workers’ well-being and that violence-prevention strategies, policies, and regulations should be implemented across most industries.


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