Reducing the dimension of water quality parameters in source water: An assessment through multivariate analysis on the data from 441 supply systems

2020 ◽  
Vol 274 ◽  
pp. 111202
Author(s):  
Shakhawat Chowdhury ◽  
Tahir Husain
2007 ◽  
Vol 140 (1-3) ◽  
pp. 119-122 ◽  
Author(s):  
Charu Parashar ◽  
Neelam Verma ◽  
Savita Dixit ◽  
Rajneesh Shrivastava

Author(s):  
Ibrahim Mohamed ◽  
Faridah Othman ◽  
Adriana I. N. Ibrahim ◽  
M. E. Alaa-Eldin ◽  
Rossita M. Yunus

2021 ◽  
Vol 11 (03) ◽  
pp. 103-128
Author(s):  
Anselme Crépin Mama ◽  
Willy Karol Abouga Bodo ◽  
Gisele Flodore Youbouni Ghepdeu ◽  
Gordon Nwutih Ajonina ◽  
Jules Rémi Ngoupayou Ndam

2000 ◽  
Vol 41 (7) ◽  
pp. 87-92 ◽  
Author(s):  
B-M. Hsu ◽  
C. Huang ◽  
Y-F. Hsu ◽  
C-L.L. Hsu

Giardia and Cryptosporidium have emerged as waterborne pathogens of concern over the past few decades. Twenty-nine source water samples were collected from water treatment facilities and checked for the occurrence of Giardia and Cryptosporidium along with some water quality parameters. These facilities include ten large-scale treatment plants near major metropolitan areas, and eight simple facilities in small and secluded communities. The indirect immunofluorescence assay (IFA) was used for the detection of cysts and oocysts in water samples. In addition, fecal specimens were collected from watersheds providing source water for the treatment plants, and the presence of Giardia and Cryptosporidium was detected with the enzyme-linked immunosorbent assay (EIA). The mean concentrations of protozoa in large-scale plants were 66.6 cysts/100 litres and 89.2 oocysts/100 litres, whilesimple facilities contained 1.27 cysts/100 litres and 0.28 oocysts/100 litres, respectively. The concentrations of these two parasites exhibit the highest correlation with turbidity than any other water quality parameters. Amongthe 101 fecal specimens, eleven were positive for Giardia and 22 were positive for Cryptosporidium. It was also found that the occurrence of these two pathogens in the source water was directly linked to the surrounding farming activities, suggesting that farming activities should be kept at a certain distance from the watersheds.


2015 ◽  
Vol 8 (1) ◽  
pp. 85-89
Author(s):  
F Zannat ◽  
MA Ali ◽  
MA Sattar

A study was conducted to evaluate the water quality parameters of pond water at Mymensingh Urban region. The water samples were collected from 30 ponds located at Mymensingh Urban Region during August to October 2010. The chemical analyses of water samples included pH, EC, Na, K, Ca, S, Mn and As were done by standard methods. The chemical properties in pond water were found pH 6.68 to 7.14, EC 227 to 700 ?Scm-1, Na 15.57 to 36.00 ppm, K 3.83 to 16.16 ppm, Ca 2.01 to 7.29 ppm, S 1.61 to 4.67 ppm, Mn 0.33 to 0.684 ppm and As 0.0011 to 0.0059 ppm. The pH values of water samples revealed that water samples were acidic to slightly alkaline in nature. The EC value revealed that water samples were medium salinity except one sample and also good for irrigation. According to drinking water standard Mn toxicity was detected in pond water. Considering Na, Ca and S ions pond water was safe for irrigation and aquaculture. In case of K ion, all the samples were suitable for irrigation but unsuitable for aquaculture.J. Environ. Sci. & Natural Resources, 8(1): 85-89 2015


2018 ◽  
Vol 69 (8) ◽  
pp. 2045-2049
Author(s):  
Catalina Gabriela Gheorghe ◽  
Andreea Bondarev ◽  
Ion Onutu

Monitoring of environmental factors allows the achievement of some important objectives regarding water quality, forecasting, warning and intervention. The aim of this paper is to investigate water quality parameters in some potential pollutant sources from northern, southern and east-southern areas of Romania. Surface water quality data for some selected chemical parameters were collected and analyzed at different points from March to May 2017.


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