Natural radionuclide concentrations in drinking water (well and spring mineral waters) samples from Bordj-Bouarreridj region, east Algeria

2021 ◽  
Author(s):  
H. Kebir
Keyword(s):  
Drinking Water ◽  
Natural Radionuclide ◽  
Mineral Waters ◽  
Water Well

Survey of Bottled Drinking Water Sold in Canada. Part 1. Lead, Cadmium, Arsenic, Aluminum, and Fluoride

1992 ◽  
Vol 75 (6) ◽  
pp. 949-953 ◽  
Author(s):  
Robert W Dabeka ◽  
Henry B S Conacher ◽  
John Salminen ◽  
Gerald R Nixon ◽  
Gunther Riedel ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Tap Water ◽  
Bottled Water ◽  
Mineral Waters ◽  
Mineral Spring ◽  
Bottled Drinking Water ◽  
Drug Regulations ◽  
Tap Water Quality

Abstract Samples of bottled water (n = 172) offered for sale in Canada were analyzed for lead, cadmium, arsenic, aluminum, and fluoride: means and ranges (μg/g) found were, respectively, 0.0026 (<0.0010- 0.074), 0.00018 (<0.0001-0.0004), 0.0030 (<0.001- 0.048), 0.027 (<0.010-0.568), and 0.543 (<0.050- 5.85). Comparison of levels among mineral waters (n = 64), spring waters (n = 77), and miscellaneous waters (n = 31) indicated appreciable differences only in the case of fluoride. For fluoride, the means and medians (μg/g) for mineral, spring, and miscellaneous waters were 1.179 and 0.455, 0.152 and 0.090, and 0.201 and <0.050, respectively. No samples were found in violation of the tolerances in the Canadian Food and Drug Regulations; however, 1 sample (in a lead-soldered can) contained lead and 15 samples contained fluoride at levels above the limits recommended by the Guidelines for Canadian Drinking Water (tap-water) Quality.

Lessons learned from the 2013 Calgary flood: Assessing risk of drinking water well contamination

2017 ◽  
Vol 80 ◽  
pp. 78-85 ◽  
Author(s):  
Kristin M. Eccles ◽  
Sylvia Checkley ◽  
Darren Sjogren ◽  
Herman W. Barkema ◽  
Stefania Bertazzon
Keyword(s):  
Drinking Water ◽  
Lessons Learned ◽  
Water Well

Salt Fluoridation and General Health

1995 ◽  
Vol 9 (2) ◽  
pp. 138-143 ◽  
Author(s):  
K.E. Bergmann ◽  
R.L. Bergmann
Keyword(s):  
Drinking Water ◽  
Salt Intake ◽  
Dental Fluorosis ◽  
Fluoride Concentration ◽  
Mineral Waters ◽  
Table Salt ◽  
Fluoride Level ◽  
Individual Level ◽  
Salt Consumption ◽  
Fluoride Intake

Salt fluoridation is a systemic form of fluoride supplementation, leaving it to the consumer whether he wants fluoride supplements or not, but thereafter not requiring special dependability for daily compliance. Most German drinking water has low fluoride concentrations. The estimated fluoride intake in German children is between 100 and 300 μg/day, and in adults, between 400 and 600 μg/day. Male subjects have higher mean intakes than females. From 70 to 90% of the salt intake of 10 to 13.5 g/day in German adults comes from commercially prepared foods. This leaves about 1 to 4 g of salt to be added as table salt at the individual level and to become the source of supplementary fluoride. To increase fluoride intake by at least 500 μg/d, and to prevent an additional intake of more than 3000 μg/day, it may be necessary to have salt at a fluoride level of around 500 μg/g or to include one commercial food to be prepared with fluoridated salt, e.g., bread. A salt fluoride concentration of 250 μg/g does not present a risk of dental fluorosis. However, clear recommendations about systemic fluoride supplementation must be given as long as there are fluoride tablets, fluoride-rich mineral waters, and fluoridated table salt available simultaneously. Persons at risk for hypertension from salt consumption require different means of fluoride supplementation. By and large, in areas of low drinking water fluoride, fluoridated table salt has the potential to become a means of systemic supplementation comparable with drinking water fluoridation.

scholarly journals Radon 222Rn in drinking water of West Pomeranian Voivodeship and Kuyavian-Pomeranian Voivodeship, Poland

Nukleonika ◽  
2018 ◽  
Vol 63 (2) ◽  
pp. 43-46
Author(s):  
Kamil Wieprzowski ◽  
Marcin Bekas ◽  
Elżbieta Waśniewska ◽  
Adam Wardziński ◽  
Andrzej Magiera
Keyword(s):  
Drinking Water ◽  
Radon Concentration ◽  
Liquid Scintillation ◽  
Natural Radionuclide ◽  
Decay Product ◽  
Scintillation Counting ◽  
Population Exposure ◽  
Human Consumption ◽  
Counting Method ◽  
The West

Abstract Radon Rn-222 is a commonly occurring natural radionuclide found in the environment from uranium-radium radioactive series, which is the decay product of radium Ra-226. The presence of radon carries negative health effects. It is, in fact, classified as a carcinogen, and therefore, it is necessary to continuously monitor its concentration. The aim of this study was to determine the level of radon-222 concentration in water intended for human consumption in the two voivodeships of Poland: West Pomeranian and Kuyavian-Pomeranian. Measurements were performed for more than 60 intakes. The level of radon was measured by using the liquid scintillation counting method. The range of measured radon concentration in the water from the West Pomeranian Voivodeship was from 0.90 to 11.41 Bq/dm3 with an average of 5.01 Bq/dm3, while that from the Kuyavian-Pomeranian Voivodeship was from 1.22 to 24.20 Bq/dm3 with an average of 4.67 Bq/dm3. Only in three water intakes, the concentration of radon-222 exceeded the value of 10 Bq/dm3. The obtained results allowed to conclude that population exposure associated with radon-222 in water is negligible and there is no need to take further action. In the case of three intakes where a higher concentration of radon was found, the potential exposure was low.

scholarly journals Domestic wells have high probability of pumping septic tank leachate

2011 ◽  
Vol 8 (3) ◽  
pp. 5701-5732
Author(s):  
J. E. Horn ◽  
T. Harter
Keyword(s):  
Drinking Water ◽  
Rural Areas ◽  
High Probability ◽  
Transport Model ◽  
Regional Scale ◽  
Septic Tank ◽  
Septic Systems ◽  
Capture Zone ◽  
Septic System ◽  
Water Well

Abstract. Onsite wastewater treatment systems such as septic systems are common in rural and semi-rural areas around the world; in the US, about 25–30 % of households are served by a septic system and a private drinking water well. Site-specific conditions and local groundwater flow are often ignored when installing septic systems and wells. Particularly in areas with small lots, thus a high septic system density, these typically shallow wells are prone to contamination by septic system leachate. Typically, mass balance approaches are used to determine a maximum septic system density that would prevent contamination of the aquifer. In this study, we estimate the probability of a well pumping partially septic system leachate. A detailed groundwater and transport model is used to calculate the capture zone of a typical drinking water well. A spatial probability analysis is performed to assess the probability that a capture zone overlaps with a septic system drainfield depending on aquifer properties, lot and drainfield size. We show that a high septic system density poses a high probability of pumping septic system leachate. The hydraulic conductivity of the aquifer has a strong influence on the intersection probability. We conclude that mass balances calculations applied on a regional scale underestimate the contamination risk of individual drinking water wells by septic systems. This is particularly relevant for contaminants released at high concentrations, for substances which experience limited attenuation, and those being harmful even in low concentrations.

scholarly journals The occurrence of Aeromonas spp. in the bottled mineral water, well water and tap water from the municipal supplies

2008 ◽  
Vol 51 (5) ◽  
pp. 1049-1055 ◽  
Author(s):  
Denise de Oliveira Scoaris ◽  
Fernando Cezar Bizerra ◽  
Sueli Fumie Yamada-Ogatta ◽  
Benício Alves de Abreu Filho ◽  
Tânia Ueda-Nakamura ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Mineral Water ◽  
Tap Water ◽  
Indicator Bacteria ◽  
Well Water ◽  
Total Coliforms ◽  
Water Well ◽  
Artesian Water ◽  
Bottled Mineral Water

The aim of this work was to study the occurrence of Aeromonas sp in the bottled mineral water, well water and tap water from the municipal supplies. Positive samples were found for Aeromonas spp. 12.7% from the mineral water, 8.3% from the artesian water and 6.5% from the tap water. The recovery of Aeromonas spp. was significantly higher in the bottled mineral and artesian water than in the tap water from municipal supplies. The occurrence of the Aeromonas spp. did not correlate significantly with the contamination indicator bacteria (i.e. total coliforms) in the artesian water samples. However, a significant correlation was found between Aeromonas spp. and total coliforms in the both mineral water and tap water samples. The presence or absence of a correlation between the indicator bacteria and Aeromonas could reflect the occasional appearance of the pathogen in the drinking water and the different rates of survival and recovery of these agents compared with those fecal indicators. The finding that 41.6, 14.8 and 9.0 % of the artesian water, bottled mineral water and tap water, respectively, sampled in the current study failed to meet the Brazilian standard for total coliforms in the drinking water should therefore be of concern.

scholarly journals Evaluation of Microbial Communities of Bottled Mineral Waters and Preliminary Traceability Analysis Using NGS Microbial Fingerprints

Water ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 2824
Author(s):  
Federica Carraturo ◽  
Carmela Del Giudice ◽  
Mariacristina Compagnone ◽  
Giovanni Libralato ◽  
Maria Toscanesi ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Safety Management ◽  
Water Quality Management ◽  
Warning System ◽  
Storage Conditions ◽  
Bottled Water ◽  
Mineral Waters ◽  
Human Consumption ◽  
Microbial Composition

The microbiological monitoring of mineral bottled waters results is crucial for the prevention of outbreaks in consumers. European and International regulations establish the quality of water intended for human consumption in order to preserve human health from the negative effects deriving from water contamination. Advanced methods targeting the faster detection of potential pathogens in drinking water may consent to the creation of an early warning system, enhancing water quality management. This study aimed to suggest the implementation of standard water quality evaluations, based on the characterization of the microbial composition of mineral bottled water brands, contributing to the periodic control of the water’s microbiological stability along with the shelf life, and, consequently, the stability of the supplying sources. Bottled water microbiota analysis was combined with the qualitative and quantitative evaluation of microbial loads in time, and the monitoring was performed in two seasons and two different storage conditions for a total of sixty days. The employment of molecular microbiology techniques (NGS and Sanger sequencing), compared to standardized cultural methods and integrated with metagenomic analysis, combining chemical and physical indicators for each sample, allowing for the generation of specific fingerprints for mineral bottled waters, pointing at simplifying and improving the foreseen risk assessment strategies to ensure the adequate traceability, quality and safety management of drinking water.

scholarly journals Behavior of TiO2 and CeO2 Nanoparticles and Polystyrene Nanoplastics in Bottled Mineral, Drinking and Lake Geneva Waters. Impact of Water Hardness and Natural Organic Matter on Nanoparticle Surface Properties and Aggregation

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 721 ◽  
Author(s):  
Lina Ramirez ◽  
Stephan Ramseier Gentile ◽  
Stéphane Zimmermann ◽  
Serge Stoll
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Natural Organic Matter ◽  
Drinking Water Treatment ◽  
Water Hardness ◽  
Engineered Nanoparticles ◽  
Mineral Waters ◽  
Lake Geneva ◽  
Water Treatment Process ◽  
The Impact

Intensive use of engineered nanoparticles (NPs) in daily products ineluctably results in their release into aquatic systems and consequently into drinking water resources. Therefore, understanding NPs behavior in various waters from naturel to mineral waters is crucial for risk assessment evaluation and the efficient removal of NPs during the drinking water treatment process. In this study, the impact of relevant physicochemical parameters, such as pH, water hardness, and presence of natural organic matter (NOM) on the surface charge properties and aggregation abilities of both NPs and nanoplastic particles is investigated. TiO2, CeO2, and Polystyrene (PS) nanoplastics are selected, owing to their large number applications and contrasting characteristics at environmental pH. Experiments are performed in different water samples, including, ultrapure water, three bottled mineral waters, Lake Geneva, and drinking water produced from Lake Geneva. Our findings demonstrate that both water hardness and negatively charged natural organic matter concentrations, which were measured via dissolved organic carbon determination, are playing important roles. At environmental pH, when negatively charged nanoparticles are considered, specific cation adsorption is promoting aggregation so long as NOM concentration is limited. On the other hand, NOM adsorption is expected to be a key process in NPs destabilization when positively charged PS nanoplastics are considered.

Tularemia: A differential diagnosis in oto-rhino-laryngology

1993 ◽  
Vol 107 (2) ◽  
pp. 127-129 ◽  
Author(s):  
Stein Helge Glad Nordahl ◽  
Terje Hoel ◽  
Olaf Scheel ◽  
Jan Olofsson
Keyword(s):  
Drinking Water ◽  
Differential Diagnosis ◽  
Case Report ◽  
Francisella Tularensis ◽  
High Titre ◽  
Cervical Lymph Nodes ◽  
Northern Norway ◽  
Source Of Infection ◽  
Water Well ◽  
Contaminated Drinking Water

Tularemia can present as an oto-rhino-laryngological disease. The clinical and radiological (CT) manifestations, diagnosis and treatment are discussed based on a case report where a patient with tonsillitis and enlarged cervical lymph nodes was admitted to the department of oto-rhino-laryngology of a hospital in Northern Norway.Francisella tularensiswas isolated from the blood and there was a high titre of agglutinating serum antibodies to F. tularensis. The patient's contaminated drinking water well is the suspect source of infection.

scholarly journals Determination of strontium in drinking water and consequences of radioactive elements present in drinking water for human health

2006 ◽  
Vol 51 (1) ◽  
pp. 87-98 ◽  
Author(s):  
Milos Rajkovic ◽  
Mirjana Stojanovic ◽  
Gordana Pantelic ◽  
Vedrana Vuletic
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Human Health ◽  
Natural Radionuclide ◽  
Uranium Content ◽  
Supply System ◽  
Radioactive Isotopes ◽  
Radioactive Elements ◽  
The City

In this paper the analysis of strontium and uranium content in drinking water has been done, indirectly, according to the scale which originates from drinking water in water-supply system of the city of Belgrade. Gamaspectrometric analysis showed the presence of free natural radionuclide in low activities. The activity of 90Sr in scale which is 0.72?0.11 Bq/kg was determined by radiochemical. Because of the small quantities of fur in the house heater this activity can be considered as irrelevant, but the accumulation of scale can have intensified influence. In this paper, the analysis of effects of the radioactive isotopes presence (first of all 238U and 235U) in drinking water on human health has been done. .

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