Temporal variability of disinfection by-products concentration in urban public water system

2013 ◽  
Vol 14 (4) ◽  
pp. 393-398
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Temporal Variability ◽  
Water System ◽  
The Other ◽  
Major Constituent ◽  
System P ◽  
Public Water System ◽  
Drinking Water Samples ◽  
By Products

The occurrence of trihalomethanes (THMs) was studied in the drinking water samples from urban water supply network of Karachi city that served more than 18 million people. Drinking water samples were collected from 58 locations in summer (May-August) and winter (November-February) seasons. The major constituent of THMs detected was chloroform in winter (92.34%) and summer (93.07%), while the other THMs determined at lower concentrations. Summer and winter concentrations of total THMs at places exceed the levels regulated by UEPA (80 μg l-1) and WHO (100 μg l-1). GIS linked temporal variability in two seasons showed significantly higher median concentration (2.5%-23.06%) of THMs compared to winter.

scholarly journals Microbiological water quality in a decentralized Arctic drinking water system

2020 ◽  
Vol 6 (7) ◽  
pp. 1855-1868
Author(s):  
Stephanie L. Gora ◽  
Tim Anaviapik Soucie ◽  
Nicole E. McCormick ◽  
C. Carolina Ontiveros ◽  
Vincent L'Hérault ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water System ◽  
Arctic Region ◽  
Water Source ◽  
Domestic Water ◽  
Point Of Use ◽  
System P ◽  
Drinking Water System ◽  
Microbiological Water Quality ◽  
Drinking Water Samples

Drinking water samples were collected from the water source, water delivery truck, domestic water storage tanks, and at the point of use in a decentralized drinking water system in Pond Inlet, Nunavut, a predominantly Inuit community in Canada's Arctic region.

scholarly journals Disinfection by-products in drinking water distribution system of Bucharest City

2021 ◽  
Vol 3 (1) ◽  
pp. 10-18
Author(s):  
Iuliana Paun ◽  
◽  
Florentina Laura Chiriac ◽  
Vasile Ion Iancu ◽  
Florinela Pirvu ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Distribution System ◽  
Water Distribution ◽  
Inorganic Ions ◽  
Residual Chlorine ◽  
Chlorination Process ◽  
Water Legislation ◽  
Drinking Water Samples ◽  
By Products

Chlorine is widely used in Romania and all over the world as a disinfectant of drinking water. During the chlorination process, the natural organic matter and inorganic ions react with chlorine forming disinfection by-products (DBPs). The predominant organic disinfection by-products are trihalomethanes (THMs) while the main inorganic disinfection by-products are chlorate and chlorite ions. THMs were detected in all investigated drinking water samples from Bucharest distribution system with values from 27.8 µg/L up to 75.1 µg/L, which are below the maximum concentration value admitted by Romanian drinking water legislation of 100 µg/L. Chloroform constitutes the major component in total THMs concentration found in all tested drinking water. Chlorate and chlorite anions were not detected in any of the investigated drinking water samples. THMs concentration was correlated with total organic carbon (TOC), residual chlorine and chloride.

scholarly journals TO THE QUESTION ABOUT THE QUALITY OF DRINKING WATER SYSTEM OF CENTRALIZED DRINKING WATER SUPPLY OF REPUBLIC OF MORDOVIA

2017 ◽  
pp. 41-43 ◽  
Author(s):  
A.V. Abramkin ◽  
R.S. Rakhmanov
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Water System ◽  
Drinking Water Supply ◽  
Surface Water Resources ◽  
Drinking Water System ◽  
Scientific Substantiation ◽  
Drinking Water Samples

Surface water resources of Mordovia Republic characterized by an inconstant output during a year, therefore, underground artesian waters use for household and drinking water supply. In 2009–2015 the quality of drinking water samples taken in 22 districts of Mordovia was unfavorable according to content of fluorine (taken in 13 districts and city of Saransk), iron (taken in 11 districts and city of Saransk), strontium (1 district), iodine was absent in all water samples. The main contaminant was fluorides, their level was up to 1,5–5,2 MAC. The development and scientific substantiation of hygienic actions on group and individual prevention of exposure to elevated concentrations of fluorine as well as iodine deficiency in human body are required.

scholarly journals Potential endocrine disruptor activity of drinking water samples

2015 ◽  
Vol 3 (1) ◽  
pp. e983384 ◽  
Author(s):  
Marize de Lm Solano ◽  
Cassiana C Montagner ◽  
Carolina Vaccari ◽  
Wilson F Jardim ◽  
Janete A Anselmo-Franci ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Endocrine Disruptor ◽  
Drinking Water Samples

Investigation of radioactivity in selected drinking water samples from Maryland

2008 ◽  
Vol 277 (1) ◽  
pp. 155-159 ◽  
Author(s):  
I. Outola ◽  
S. Nour ◽  
H. Kurosaki ◽  
K. Inn ◽  
J. La Rosa ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Drinking Water Samples
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