The Health Risks of Bathing in Recreational Waters: A Rapid Evidence Assessment of Water Quality and Gastrointestinal Illness

10.7249/rr698 ◽  
2014 ◽  
Author(s):  
Sarah King ◽  
Josephine Exley ◽  
Eleanor Winpenny ◽  
Lottie Alves ◽  
Marie-Louise Henham ◽  
...  
2021 ◽  
Vol 3 (7) ◽  
Author(s):  
Alex Saturday ◽  
Thomas J. Lyimo ◽  
John Machiwa ◽  
Siajali Pamba

AbstractBackground Microbial water quality serves to indicate health risks associated with the consumption of contaminated water. Nevertheless, little is known about the microbiological characteristics of water in Lake Bunyonyi. This study was therefore undertaken to examine the spatial and temporal variations of faecal indicator bacteria (FIB) in relation to physicochemical parameters in Lake Bunyonyi. Result The FIB concentration was consistently measured during sampling months and correlated with each other showing the presumed human faecal pollution in the lake. The highest concentration values for E. coli (64.7 ± 47.3 CFU/100 mL) and enterococci (24.6 ± 32.4 CFU/100 mL were obtained in the station close to the Mugyera trading centre. On a temporal basis, the maximum values were recorded during the rainy season in October 2019 (70.7 ± 56.5 CFU/100 mL for E. coli and 38.44 ± 31.8 CFU/100 mL for enterococci. FIB did not differ significantly among the study stations (p > 0.05) but showed significant temporal variations among the months (p < 0.05) with concentrations being significantly high in wet season than dry season (U = 794, p < 0.0001 for E. coli; U = 993.5, p = 0.008 for enterococci). Spearman’s rank correlation revealed that FIB concentrations were significantly positively correlated with turbidity and DO concentration levels (p < 0.05). Approximately 97.2% of the water samples had E. coli and enterococci concentrations levels below USEPA threshold for recreational waters. Likewise, 98.1 and 90.7% of samples recorded E. coli and enterococci counts exceeding the UNBS, APHA, WHO and EU threshold values for drinking water. Conclusion The FIB counts show that the Lake Bunyonyi water is bacteriologically unsuitable for drinking unless it is treated since the FIB pose health risks to consumers. Besides, the water can be used for recreational purposes.


2019 ◽  
Vol 690 ◽  
pp. 1203-1217 ◽  
Author(s):  
Laurence Maurice ◽  
Fausto López ◽  
Sylvia Becerra ◽  
Hala Jamhoury ◽  
Karyn Le Menach ◽  
...  

Epidemiology ◽  
2017 ◽  
Vol 28 (5) ◽  
pp. 644-652 ◽  
Author(s):  
Jade Benjamin-Chung ◽  
Benjamin F. Arnold ◽  
Timothy J. Wade ◽  
Kenneth Schiff ◽  
John F. Griffith ◽  
...  

2009 ◽  
Vol 3 ◽  
pp. 25-28 ◽  
Author(s):  
Mohd. Yousuf Ali ◽  
Md. Nurul Amin ◽  
Khairul Alam

The efforts of modern civilization to create an environment to meet human aspirations have successfully resulted in constant improvements of our lifestyle, but it has increased risks to human and ecological health. This situation has motivated many scientists throughout the world to analyze the environmental factors that can affect our health or ecology and to calculate the levels of risk. In Bangladesh development activities and utilization of the river pose a great threat to the health of the existing natural environmental system, particularly for the important river Buriganga of the capital city, Dhaka, due to the pollution of the river water. A study was carried out to observe the ecological health hazards of the Buriganga river and their risk to human health. Several random samples of water were collected from different spots on the river from September to December 2006. The samples were analyzed to determine water quality and associated environmental health risks. The study revealed that the water is high in biological oxygen demand (BOD), chemical oxygen demand (COD), phosphate (PO4 -3), ammonia, organic matters and nutrients, etc. It also revealed huge environmental health risks and possible ecological disruption of this river. Finally, the research recommends a sustainable policy framework on how the pollution could significantly be reduced by using different appropriate measures. Key words: Environmental health risk, ecological disruption, sustainable policy, water quality, Buriganga river, Bangladesh  doi: 10.3126/hn.v3i0.1915 Hydro Nepal:Journal of Water, Energy and Environment Issue No. 3, July 2008. Page: 25-28


2010 ◽  
Vol 44 (16) ◽  
pp. 4674-4691 ◽  
Author(s):  
Jeffrey A. Soller ◽  
Mary E. Schoen ◽  
Timothy Bartrand ◽  
John E. Ravenscroft ◽  
Nicholas J. Ashbolt

2008 ◽  
Vol 58 (6) ◽  
pp. 1329-1340 ◽  
Author(s):  
Vinod K. Garg ◽  
Surindra Suthar ◽  
Sushma Singh ◽  
Aleenjeet Sheoran ◽  
Garima ◽  
...  

2010 ◽  
Vol 62 (10) ◽  
pp. 2330-2337 ◽  
Author(s):  
Gideon Oron ◽  
Lieonid Gillerman ◽  
Avraham Lael ◽  
Yossi Manor ◽  
Erez Braude ◽  
...  

Health risks posed on consumers due to the use of agricultural products irrigated with reclaimed wastewater were assessed by numerical simulation. The analysis is based on defining of an Exposure Model (EM) which takes into account several parameters: (i) the quality of the applied wastewater, (ii) the irrigation method, (iii) the elapsed times between irrigation, harvest, and product consumption, and; (iv) the consumers' habits. The exposure model is used for numerical simulation of human consumers' risks by running the Monte Carlo simulation method. Although some deviations in the numerical simulation which are probably due to uncertainty (impreciseness in quality of input data) and variability due to diversity among populations reasonable results were accepted. Accordingly, there is a several orders of magnitude difference in the risk of infection between the different exposure scenarios with the same water quality. The variability indicates the need for setting risk-based criteria for wastewater reclamation, including the application method and environmental conditions, rather than single water quality guidelines. Extra data is required to decrease uncertainty in the risk assessment. Future research needs to include definite acceptable risk criteria, more accurate dose-response modeling, information regarding pathogen survival in treated wastewater, additional data related to the passage of pathogens into and in the plants during irrigation, and information referring to the consuming habits of the human community.


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