scholarly journals Analysis of drinking water quality from the standpoint of health risks

2018 ◽  
Vol 143 ◽  
pp. 04004
Author(s):  
Valentina Nikiforova ◽  
Elena Vidishcheva
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Health Risks ◽  
Age Groups ◽  
Oral Intake ◽  
Risk Level ◽  
Special Method ◽  
Irkutsk Region ◽  
Public Drinking Water ◽  
System Risk

The paper presents a hygienic quality assessment of water from sources in the Irkutsk Region (Russia) used for public drinking water supply. The aim of the study is to assess health risks to the population of Bratsk and the Bratsk District, which is associated with the exposure to chemicals coming with drinking water from the public water supply system. Risk of occurrence and development of non-carcinogenic effects is assessed for separate age groups using a special method. Based on the risk assessment methodology, non-carcinogenic risks for children and adults are described in quantitative terms. The total health risk of the test groups associated with the oral intake of chemicals with drinking water is estimated as negligible and, therefore, does not need to be reduced through additional measures. Lead and fluoride contents in drinking water are the major contributors to the risk level (59.5–68.4%). There is a risk of developing blood disorders and cardiovascular diseases in children of Bratsk (HI = 1.19), as well as bone tissue and teeth disorders in children of Bikey village, Bratsk District (HI = 1.10).

scholarly journals The history and present of public drinking water supply and its regionalisation in Debrecen

2013 ◽  
pp. 147-151
Author(s):  
Sándor Nagy
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Public Water Supply ◽  
Considerable Decrease ◽  
The Public ◽  
Public Drinking Water ◽  
History Of ◽  
Sanitation Systems ◽  
Regional Water

The public water supply played a major role in the urbanization of Debrecen city, just like in the case of many other cities. We had plenty of water and so we wasted it. However nowadays we experience a considerable decrease in the level of groundwater which causes an increasing need of energy for pumping. Beside the above mentioned the ecological threat and the decreasing water quality are also major problems. This study attempts to draw attention to the possibilities and the future of the regional water supply, by showing the history of the water supply, the sanitation systems of Debrecen and their present day activities.

scholarly journals Lithium levels in the public drinking water supply and risk of suicide: A pilot study

2017 ◽  
Vol 43 ◽  
pp. 197-201 ◽  
Author(s):  
Vilma Liaugaudaite ◽  
Narseta Mickuviene ◽  
Nijole Raskauskiene ◽  
Rima Naginiene ◽  
Leo Sher
Keyword(s):  
Drinking Water ◽  
Pilot Study ◽  
Water Supply ◽  
Drinking Water Supply ◽  
The Public ◽  
Public Drinking Water ◽  
Public Drinking

Health risks of pollutants in the surface water sources of the centralized drinking water supply in Zhengzhou, China

2012 ◽  
Vol 37 (3) ◽  
pp. 253-264
Author(s):  
Qingli Cheng ◽  
Hui Wu ◽  
Wenlin Wang ◽  
Yanjü Wu ◽  
Hongli Li ◽  
...  
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Water Supply ◽  
Health Risks ◽  
Water Sources ◽  
Drinking Water Supply

scholarly journals HYGENIC ASSESSMENT OF DYNAMICS OF CHLOROFORM EXPOSITION IN PERM REGION AND IT'S IMPACT ON CAUSING DISEASES OF THE BLOOD, BLOOD-FORMING ORGANS AND CERTAIN DISORDERS INVOLVING IMMUNE MECHANISM AMONG CHILDREN

2018 ◽  
Vol 97 (1) ◽  
pp. 29-34
Author(s):  
Kristina V. Chetverkina ◽  
S. V. Kleyn ◽  
V. M. Chigvintsev
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Oral Intake ◽  
Blood System ◽  
Drinking Water Supply ◽  
Comparative Characteristic ◽  
Immune Mechanism ◽  
Child Population ◽  
Hematopoietic Organs ◽  
Perm Region

On the basis of the system review, the relevance of the problem of the chloroform content in the drinking water of centralized drinking-water supply systems in the Perm Territory is confirmed. The comparative characteristic with the average Russian indices is presented. Insufficient volume of information containing data on the impact of the oral intake of chloroform on the blood system was established. There are presented results of the research content of chloroform in water samples from centralized drinking water supply in the cities of Perm region, as well as in the blood of the child population aged from 3 to 13 years living in these areas and consuming water under investigation in the period from 2011 to 2015. A long-term dynamics of the content of chloroform, contained in samples of drinking water and in bio-environments is described. A mathematical simulation of the dependence of the chloroform content in the blood as an exposure marker on the concentration of chloroform in water was carried out. As a result of the analysis of the prevalence rate of diseases of the blood system, hematopoietic organs and certain disorders involving the immune mechanism in the child population, there was established the relevance of differences between the territories of Permsky Krai with surface and underground water supply. The dynamics of the chloroform content in water and morbidity according to the class of blood diseases, hematopoietic organs and certain disorders involving the immune mechanism is presented and described. The association between the exposure to the oral intake of chloroform with drinking water with a morbidity on the class of diseases of the blood system was established on the basis of constructing a mathematical model. The conclusion about the legitimacy of information on the effect of the oral intake of chloroform on the blood system, hematopoietic organs and certain disorders involving the immune mechanism is presented.

scholarly journals Analyzing health risks caused by contaminated drinking water (experience gained in Samara region)

2021 ◽  
pp. 41-51
Author(s):  
O.V. Sazonova Sazonova ◽  
◽  
A.K. Sergeev ◽  
L.V. Chupakhina ◽  
T.K. Ryazanova ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Health Risks ◽  
Hazard Quotient ◽  
Actual Data ◽  
Controlled Study ◽  
Water Supply Systems ◽  
Contaminated Drinking Water ◽  
Supply Systems

Environmental contamination is still a pressing issue, in particular, contaminated drinking water sources and contaminated drinking water from centralized communal water supply systems, since it produces negative effects on human health. Our research goal was to estimate probable impacts exerted on overall morbidity in Samara by quality of drinking water taken from centralized communal water supply systems as a most significant environmental factor. Our research tasks included taking and analyzing drinking water samples from centralized communal water supply systems; calculating carcinogenic and non-carcinogenic health risks caused by analyzed chemicals. To fulfill the tasks and achieve the goals, in 2018–2019 we performed sanitary-chemical analysis of drinking water quality as per 20 sanitary-chemical parameters; our research object was drinking water taken from centralized communal water supply systems in 7 districts in Samara. Obtained actual data on contamination of water taken from centralized water supply networks in Samara were used as primary basis for calculating hazard indexes and carcinogenic risk coefficients using conventional exposure scenarios. In our research we revealed that maximum total non-carcinogenic hazard quotient was determined by arsenic and petroleum products introduction. Assessment of carcinogenic risks caused by contaminants in drinking water revealed that total health risk for children younger than 18 was within the second range as per its median; total carcinogenic risks for adults, within the third range. At the same time, arsenic contents did not exceed hygienic standards in all examined samples. So, we assessed carcinogenic and non-carcinogenic risks, basing on actual data on quality of drinking water taken from centralized communal water supply systems. It seems vital to perform a wider-scale controlled study in several regions in order to assess significance of revealed factors for morbidity among population.

scholarly journals Essential elements and standards for their contents in drinking water

2020 ◽  
pp. 30-38
Author(s):  
O.O. Sinitsyna ◽  
◽  
S.I. Plitman ◽  
G.P. Ampleeva ◽  
O.A. Gil'denskiol'd ◽  
...  
Keyword(s):  
Drinking Water ◽  
Health Risks ◽  
Human Body ◽  
Daily Intake ◽  
Carcinogenic Risk ◽  
Water Sources ◽  
Essential Elements ◽  
Risk Level ◽  
Drinking Water Sources ◽  
Reference Doses

Certain essential and conditionally essential natural elements (selenium, chromium, iodine, molybdenum, cobalt, vanadium, fluorine, lithium, silicon, boron, and bromine) are standardized in terms of their contents in drinking water as per sanitary-toxicological parameters of adverse health effects. Our research goal was to determine a contribution made by drinking water into supplying a human body with essential natural elements as well as to substantiate the necessity to update standards regarding these substances. We applied calculation models for dose equivalents of essential elements MPC (maximum permissible concentration), MPC calculations for these substances basing on a necessary 20 % contribution made by drinking water into reference doses, and calculation of non-carcinogenic health risks due to essential elements occurrence in specific drinking water sources with these elements being distributed into different groups as per similar effects produced on certain organs and systems in a body. We took existing drinking water sources containing 6 essential elements with similar effects as an example and applied a procedure for assessing non-carcinogenic health risks. Acting nickel and selenium MPC do not supply a body with an optimal daily intake whereas their determined MPC are not only harmless but also conform to the minimum necessary intake dose. At the same time neither acting lithium MPC nor its calculated one taking into account risk assessment based on internationally accepted reference doses doesn’t provide the minimum necessary daily intake into a human body. When boron and vanadium are contained in drinking water in a concentration close to their MPC, then their 20 % contribution into the reference dose is exceeded (71.4 % and 164.7 % accordingly). Introduction of these essential elements with food can become a factor that determines non-carcinogenic risk level.

scholarly journals A model for prediction of microbial disease burden of water supply options in Bangladesh

2015 ◽  
Vol 4 (1) ◽  
pp. 31-36 ◽  
Author(s):  
M Feroze Ahmed
Keyword(s):  
Escherichia Coli ◽  
Drinking Water ◽  
Infectious Diseases ◽  
Water Supply ◽  
Health Risks ◽  
Disease Burden ◽  
Microbial Pathogens ◽  
Indicator Organisms ◽  
Statistical Parameters ◽  
Rural Bangladesh

Infectious diseases caused by microbial pathogens are most common and widespread health risks are associated with drinking water. This paper presents a model for prediction of disease burden for ingestion of microbial pathogens through drinking water in rural Bangladesh. The concentration of indicator organisms (Thermotolerant coliform or Escherichia coli) in cfu/100ml were taken as input in the model and estimated disease burden in ?DALYs with some relevant statistical parameters are obtained as output. The model has been found useful in quantifying relative disease burden of microbial pathogens, comparing safety of different water supply options and delineating the interventions needed to reduce disease burden from drinking water. DOI: http://dx.doi.org/10.3329/sjm.v4i1.22759 Stamford Journal of Microbiology, Vol.4(1) 2014: 31-36

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