scholarly journals Bacteriological Examination of DrinkingWater in Different Public Places with Reference to Coliforms

2021 ◽  
Vol 1 (4) ◽  
pp. 20-21
Keyword(s):  
Drinking Water ◽  
Contamination Level ◽  
Bacteriological Examination ◽  
Public Places ◽  
Standard Methods

Abstract: This ponder explores the contamination level in drinking water in several open places. The bacteriological investigations performed were in accordancewith standard methods. Out of eight tests from distinctive locales all had checks higher than the guidelines. Cinema theaters were the foremost contaminated.

scholarly journals Study Relating to the Spatial Distribution of Ground Water Quality for Different Elements using Legacy Data of RWS&S, Andhra Pradesh, India

2014 ◽  
Vol XL-8 ◽  
pp. 383-390
Author(s):  
P. Prakash ◽  
A. Kumar Das ◽  
C. V. S. Sandilya
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Spatial Distribution ◽  
Ground Water ◽  
Andhra Pradesh ◽  
Chemical Elements ◽  
Groundwater Resources ◽  
Water Levels ◽  
Contamination Level ◽  
Ground Water Quality

The state of Andhra Pradesh, India falls in water stress<sup>4</sup> area. The primary objective of this study is to examine the spatial distribution of different chemical elements with respect to its contamination level. About 70 % of drinking water needs in rural areas and 40 % drinking water needs in urban areas are met from groundwater resources. In the last decades, rapid population growth coupled with agricultural expansion due to subsidized power to agriculture has significantly increased demand on groundwater resources. Combined to this, the effect of Global warming has put stress on ground water which is resulting in declines in water levels and deterioration of ground water quality. This may be evidenced by the fact that the phreatic aquifer which was in use two decades ago, is existing no more now in some of the parts of the study area and the water is being drawn from deeper aquifers beyond phreatic aquifers. The study has been carried out for which one or more elements are contaminated and to study its spatial distribution.

scholarly journals Bacteriological examination of drinking water in Burdwan, India with reference to coliforms

2007 ◽  
Vol 6 (22) ◽  
pp. 2601-2602 ◽  
Author(s):  
Chatterjee ◽  
S N ◽  
Das ◽  
D ◽  
Roy ◽  
...  
Keyword(s):  
Drinking Water ◽  
Bacteriological Examination

Validation of a novel direct-injection chemiluminescence-based method for N-nitrosamine analysis in advanced-treated recycled water, drinking water, and wastewater

2020 ◽  
Vol 6 (4) ◽  
pp. 1106-1115 ◽  
Author(s):  
Shannon L. Roback ◽  
Hitoshi Kodamatani ◽  
Takahiro Fujioka ◽  
Megan H. Plumlee
Keyword(s):  
Drinking Water ◽  
Direct Injection ◽  
Recycled Water ◽  
Standard Methods ◽  
Water Drinking ◽  
Novel Method ◽  
Water And Wastewater

A novel method for N-nitrosamines analysis requiring significantly less time, labor and cost than standard methods is shown to have acceptable performance in multiple water matrices and yield similar results.

scholarly journals The Drinking Water of Steamships

1908 ◽  
Vol 8 (4) ◽  
pp. 504-520
Author(s):  
Marc Armand Ruffer ◽  
J. Graham Willmore
Keyword(s):  
Drinking Water ◽  
Bacteriological Examination ◽  
Short Account ◽  
The World ◽  
And Storage

We intend to give in this paper a short account of (1) the laws concerning the supply of drinking water to ships in some of the chief civilised countries of the world; (2) the results of bacteriological examination of the water on steamships; (3) the chief deficiencies in supply and storage which have come under our notice, and (4) the reforms which we consider urgently necessary.

scholarly journals KUALITAS BAKTERIOLOGIS AIR MINUM ISI ULANGPADA TINGKAT PRODUSEN DI KABUPATEN BADUNG.

2015 ◽  
Vol 9 (2) ◽  
pp. 52
Author(s):  
Made Partiana ◽  
Made Sudiana Mahendra ◽  
Wayan Redi Aryanta
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Significant Relationship ◽  
Raw Materials ◽  
Urban Community ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Bacteriological Examination ◽  
Probable Number

The presence of refill drinking water in the urban community especially Badung Regency is favored as an alternative of water supply because it cost relatively cheaper compared to water in pacage. The number of samples in this study was 45 outlets with refill drinking water as its study material. The bacteriological examination of the material of study was done on included most probable number (MPN) of coliform and Eschericia coli. The result of refill drinking water investigation bacteriological examination revealed 88.9 % outlets were considered qualified, 11.1 % of them were unqualified because they contained coliform bacteria and one stall had Eschericia coli. The observation hygiene 15.6 % unqualified and sanitation outlets examination 17.8 % unqualified. Correlation test showed no significant relationship between raw materials, equipment, processing, hygiene and sanitation autlets with bacteriological quality of drinking water

scholarly journals Cyanobacterial dynamics and toxins concentrations in Lake Alto Flumendosa, Sardinia, Italy

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Mara Stefanelli ◽  
Simona Scardala ◽  
Piera Angela Cabras ◽  
Andrea Orrù ◽  
Susanna Vichi ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Fish Farming ◽  
Toxin Production ◽  
Typical Feature ◽  
Drinking Water Supply ◽  
Contamination Level ◽  
Animal Population ◽  
Cell Quota ◽  
Cell Densities

Seasonal blooms of cyanobacteria (CB) are a typical feature of Lake Alto Flumendosa (Sardinia, Italy). The waters of this lake are used for drinking water supply, for agricultural and industrial uses, and fish farming activities. Since cyanotoxins are not monitored in edible organisms, diet could be a relevant route of human exposure. CB also represent a threat for the health of wild and domestic animals that use lake water for beverage. Therefore, to characterize the CB community and assess the risk for human and animal population, CB dynamic, mcyB+ fraction, and microcystins (MCs) concentration have been followed monthly for 18 months, in three stations. Results confirmed the presence of several toxigenic species. Planktothrix rubescens dominated between August 2011 and April 2012 (3.5×106 cells L-1), alternating with Woronichinia naegeliana (8×106 cells L-1) and Microcystis botrys (9×105 cells L-1). Dolichospermum planctonicum was always present at low densities (104 cells L-1). MCs were detected, at values well below the 1 µg L-1 threshold of WHO for drinking water. The molecular analysis of mcyB gene for P. rubescens indicated the presence of a persistent toxic population (average 0.45 mcyB/16S rDNA). Highly significant linear regressions were found between P. rubescens and the sum of the demethylated MC variants, and between M. botrys and the sum of MC-LR and MC-LA, also when co-occurring, suggesting that these two species were responsible for different MC patterns production. The regression lines indicated a quite stable MC cell quota. However, in some spotted samples very different values were obtained for both MC concentrations and cell quota (from 10-fold lower to 30-40-fold higher than the ‘average’) showing an unexpected significant variability in the rate of toxin production. The relatively low cell densities during the monitoring period is consistent with the low-to absent MC contamination level found in trout muscle; however, the analytical method was affected by low recovery, probably due to MC-protein binding. Our results show that, during the study period, no risk of exposure for the human and animal population occurred. However, the persistence of a complex CB community characterised by a significant toxic fraction suggests the need for periodic monitoring activity. Particularly, the hidden deep summer P. rubescens blooms, located where water is taken for drinking water supply, and M. botrys, able to produce the most toxic MC variants with high cell quota, should be kept under control. The documentation and interpretation of sudden changes in toxins concentrations deserve special attention. This is particularly relevant in proximity of fish farming plants and water catchment sites. 

scholarly journals Report of the Standard Methods Committee for the Examination of Shellfish (Bacteriological Examination of Shellfish and Shellfish Waters)

1943 ◽  
Vol 33 (5) ◽  
pp. 582-591
Author(s):  
James Gibbard ◽  
C. T. Butterfield ◽  
Hazel M. Hatfield ◽  
A. Parker Hitchens ◽  
A. C. Hunter ◽  
...  
Keyword(s):  
Bacteriological Examination ◽  
Standard Methods
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