نتایج جستجو برای: drinking waters

تعداد نتایج: 85218  

Journal: :Journal of environmental sciences 2015
M Martínez-Sales F García-Ximénez F J Espinós

Organic pollutants are present in drinking waters due to inefficient detection and removal treatments. For this reason, zebrafish is proposed as a complementary indicator in conventional potabilization treatments. Based on the most sensitive parameters detected in our previous work, in this study we attempted to examine the possible cumulative effect between generations of environmental polluta...

2016
Vahid Noroozi Karbasdehi Sina Dobaradaran Abdolhamid Esmaili Roghayeh Mirahmadi Fatemeh Faraji Ghasemi Mozhgan Keshtkar

In this data article, we evaluated the daily fluoride contents in 20 household desalinators working by reverse osmosis (RO) process in Bushehr, Iran. The concentration levels of fluoride in inlet and outlet waters were determined by the standard SPADNS method using a spectrophotometer (M501 Single Beam Scanning UV/VIS, UK). The fluoride content in outlet waters were compared with EPA and WHO gu...

Journal: :The Science of the total environment 2009
Shakhawat Chowdhury Pascale Champagne P James McLellan

Disinfection for the supply of safe drinking water forms a variety of known and unknown byproducts through reactions between the disinfectants and natural organic matter. Chronic exposure to disinfection byproducts through the ingestion of drinking water, inhalation and dermal contact during regular indoor activities (e.g., showering, bathing, cooking) may pose cancer and non-cancer risks to hu...

Journal: :Applied sciences 2021

The occurrence of pharmaceuticals in water catchments and drinking waters raises potential risks to public health. Therefore, after addressing the major aquatic contamination pathway, wastewater treatment plants (WWTPs), and, subsequently, surface waters, 18 human from 6 therapeutic groups (antibiotics, lipid regulators, selective serotonin reuptake inhibitors, non-steroidal anti-inflammatory d...

2013
AMNA KHATOON ZAID AHMED PIRZADA

In the present study, bacteriological quality of 187 different mineral water bottle brands marketed in Karachi was analyzed from September 2009 to June 2010. All the collected samples were analyzed for the presence of coliform bacteria, fecal coliform bacteria, E. coli, fecal entrococci, P. aeruginosa and total viable plate count (TVPC). Alarmingly, 67 (36%) of these samples did not comply with...

Journal: :Chemical senses 2001
I Zacarías C G Yáñez M Araya C Oraka M Olivares R Uauy

Copper effects on human health represent a relevant issue in modern nutrition. One of the difficulties in assessing the early, acute effects of copper ingested via drinking water is that the taste of copper may influence the response and the capacity to taste copper in different waters is unknown. The purpose of the study was to determine the taste threshold of copper in different types of wate...

2008

We find that, after taking raw foodstuffs, neither the number of white corpuscles nor the correlation of their percentage has changed. Ordinary unboiled drinking water, mineral water, salt, different green foodstuffs, cereals; nuts, honey, raw eggs, raw meat, raw fish, fresh milk, sour milk, butter ― in other words, foodstuffs in the state in which they exist in nature, belong to the group of t...

2006
M. Tuzen M. Soylak

The concentrations of chromium, nickel, copper, manganese, zinc, iron, cobalt and aluminum ions in drinking waters from eight sites of Tokat, Turkey, were determined by atomic absorption spectrometry. The values found the present work for the heavy metal contents of the drinking water samples of Tokat, Turkey were below the maximum tolerable limits set by the World Health Organisation (WHO) and...

2004
Jennifer Reisig Mark Walker Michelle Sweeney

ryptosporidium and Giardia are single-celled, microscopic organisms and are disease-causing parasites that may infect people through contaminated drinking water and recreational waters. Symptoms resulting from infection include mild to severe diarrhea, abdominal cramps, weight loss, bloating, and vomiting. Chlorine, a commonly used disinfectant in water supplies, can eliminate Giardia from wate...

Journal: :Nepal Medical College journal : NMCJ 2012
S K Rai K Ono J I Yanagida S Ishiyama-Imura M Kurokawa C K Rai

Bacterial contamination of drinking water is a major public health in Nepal. A large scale study on contamination of drinking water was done covering all three ecological belts (mountain, hill and Terai) in all five (eastern, central, western, mid-western and far-western) development regions of Nepal during 2009-2011. Of the total 506 water samples studied, one-forth (25.1%; 127/506) were visua...

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