NGO's “come back ayufish” campaign and preservation of drinking water sources in Murasaki River, Kitakyushu city, Japan

2006 ◽  
Vol 6 (2) ◽  
pp. 223-230
Author(s):  
A. Hashimoto

Good quality raw material gives a good quality product. This is a fundamental rule of production not only for commodities but also for our drinking water. The citizens of Kitakyushu city have been aware of this rule and started the campaign to preserve the drinking water source, and its surrounding natural environment. The catchphrase for the campaign is “Come back Ayufish to the river”. For Japanese people, ayufish is one of the most suitable indicators of clean water or clean river. More than a thousand citizens take part in this campaign every year. A group of environmental chemists have supported this campaign by sharing the long-term monitoring data for 40 years with the NGO and also the relationship between physiological impact of water quality such as BOD and MBAS on the behavior of ayufish to return to the river is discussed.

2016 ◽  
Vol 50 (20) ◽  
pp. 10851-10858 ◽  
Author(s):  
Olaf Dienus ◽  
Ekaterina Sokolova ◽  
Fredrik Nyström ◽  
Andreas Matussek ◽  
Sture Löfgren ◽  
...  

2003 ◽  
Vol 38 (1) ◽  
pp. 115-125 ◽  
Author(s):  
Beryl Zaitlin ◽  
Susan B. Watson ◽  
Jamieson Dixon ◽  
Deborah Steel

Abstract Actinomycetes can produce significant amounts of the earthy-muddy odour compounds geosmin and 2-methylisoborneol (MIB). These filamentous bacteria are found in both terrestrial and aquatic environments, and are particularly abundant in soil. They can enter freshwater systems via terrestrial runoff and subsequently cause taste and odour outbreaks in drinking water. Since it is well known that actinomycete growth and odour production is modified strongly by environmental factors such as moisture and nutrient levels, we hypothesized that watershed and stream characteristics should influence the potential odour impact of soil runoff on surface water. In this study, 1) the relationship between actinomycete abundance and characteristics such as stream discharge, turbidity and Escherichia coli levels was investigated, and 2) actinomycetes from contrasting terrestrial sources were examined for differences in their geosmin and MIB production. Actinomycetes and stream characteristics were sampled from the Elbow River, an important drinking water source for the City of Calgary (Alberta, Canada), and three tributary streams. Actinomycetes from forested regions and agricultural land were tested for taste and odour compound production. Actinomycete levels in streams were found to correlate closely with E. coli levels and to a lesser extent with turbidity, suggesting that actinomycetes are particularly abundant in runoff from terrestrial sources with fecal contamination. Most of the 18 actinomycete isolates tested were able to produce geosmin and/or MIB regardless of their terrestrial sources, suggesting that taste and odour outbreaks due to actinomycetes may be more influenced by differences in abundance than differences in source.


2018 ◽  
Author(s):  
Hadi Mohammed ◽  
Andreas Longva ◽  
Razak Seidu

Abstract. This study develops hydrodynamic and water quality models for long-term prediction of E. coli concentrations at the raw water intake point of lake Brusdalsvatnet in Norway. The study is based on previously observed concentrations of E. coli in the tributaries of the lake and local projections of precipitation and air temperature in the region. The results indicate a gradual rise in the temperature of water at the intake point from the base year (2017) through to year 2075. Shorter spring circulation and longer autumn circulation periods are expected in the lake in future. Concentrations of E. coli at the intake point of the lake are expected to marginally increase in future. By the year 2075, the models predict a 3 fold and 2 fold increase in E. coli concentrations respectively for the spring and autumn seasons compared to current levels. The results is expected to provide the water supply system managers of Ålesund with the information necessary for long term planning and decisions in the protection of the drinking water source. The method used here can also be applied to similar water supply systems for developing effective risk management strategies for recent and future scenarios.


2017 ◽  
Vol 122 ◽  
pp. 455-470 ◽  
Author(s):  
Hongtao Duan ◽  
Min Tao ◽  
Steven Arthur Loiselle ◽  
Wei Zhao ◽  
Zhigang Cao ◽  
...  

Author(s):  
Chloé Meyer

Population using an improved drinking water source (piped water into dwellings, yards or plots; public taps or standpipes; boreholes or tubewells; protected dug wells; or protected springs and rainwater) that is located on premises and available when needed and which is free of faecal and priority chemical contamination. Basin Pollution Quality Waste


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Abdul-Aziz Seidu

Abstract Background Safe disposal of children’s faeces has always been one of the main challenges to good hygiene in Ghana. Although it has been proven that children’s faeces are more likely to spread diseases than adults’ faeces, people usually mistake them for harmlessness. This study, therefore, sought to determine the prevalence and factors associated with safe disposal of children’s faeces in Ghana. Methods Data from the 2014 Ghana Demographic and Health Survey was used for the analysis. A sample size of 2228 mother-child pairs were used for the study. The outcome variable was disposal of children stools. Both bivariate and multivariable logistic regression analyses were performed to identify the factors with safe child stool disposal. Results The prevalence of safe child stool disposal in Ghana was 24.5%. Women in the middle [Adjusted odds ratio (AOR) = 4.62; Confidence Interval (CI) = 3.00–7.10], Coastal Zone [AOR = 4.52; CI = 2.82–7.22], mothers whose children were aged 12–17 [AOR = 1.56; CI = 1.15–2.13] and 18–23 months [AOR = 1.75; CI = 1.29–2.39], and mothers whose household had improved type of toilet facility [AOR = 2.04; CI = 1.53–2.73] had higher odds of practicing safe children’s faeces disposal. However, women from households with access to improved source of drinking water [AOR = 0.62; CI = 0.45–2.7] had lower odds of practicing safe children’s faeces disposal. Conclusion Approximately only about 25 out of 100 women practice safe disposal of their children’s faeces in Ghana. The age of the child, ecological zone, the type of toilet facilities, and the type of drinking water source are associated with the disposal of child faeces. These findings have proven that only improved sanitation (i.e. drinking water and toilet facilities) are not enough for women to safely dispose of their children’s faeces. Therefore, in addition to provision of toilet facilities especially in the northern zone of Ghana, there is also the need to motivate and educate mothers on safe disposal of children’s stools especially those with children below 12 months. More so, mothers without access to improved toilet facility should also be educated on the appropriate ways to bury their children’s stools safely.


Author(s):  
Jordan Roszell ◽  
Po-Shun Chan ◽  
Brian Petri ◽  
Ted Mao ◽  
Kathleen Nolan ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document