URANIUM QUANTIFICATION IN GROUNDWATER AND HEALTH RISK FROM ITS INGESTION IN AND AROUND TIRUVANNAMALAI, TAMIL NADU, INDIA

2020 ◽  
Vol 189 (2) ◽  
pp. 137-148 ◽  
Author(s):  
Durai Ganesh ◽  
G Senthil Kumar ◽  
Laith Ahmed Najam ◽  
V Raja ◽  
M A Neelakantan ◽  
...  
Keyword(s):  
Drinking Water ◽  
Tamil Nadu ◽  
Hazard Quotient ◽  
Life Time ◽  
Carcinogenic Risk ◽  
Excess Cancer Risk ◽  
Led Fluorimeter ◽  
Daily Dose ◽  
Contaminated Drinking Water ◽  
Drinking Water Samples

Abstract The aim of this study is to assess the degree of contamination in drinking water sources around the holy mountain “Arunachala” in Tiruvannamalai, Tamil Nadu. Drinking water samples from 20 different sites were collected, and their physio-chemical parameters, pH, electrical conductivity and total dissolved solvents were determined. An LED fluorimeter was used to determine the concentration of uranium in these samples. As consumption of contaminated drinking water involves both carcinogenic and non-carcinogenic risk, excess cancer risk; life-time average daily dose; hazard quotient and annual effective dose were calculated for the samples. On comparing these values with their respective maximum permissible limits, it is found that water from the aquifers around the mountain is safe to consume.

scholarly journals Chemistry and Microbiology of Urban Roof Runoff in Kraków, Poland with Ecological and Health Risk Implications

2020 ◽  
Vol 10 (23) ◽  
pp. 8554
Author(s):  
Magdalena Strzebońska ◽  
Agnieszka Gruszecka-Kosowska ◽  
Anna Kostka
Keyword(s):  
Drinking Water ◽  
Ecological Risk ◽  
Hazard Quotient ◽  
Chemical Compounds ◽  
Carcinogenic Risk ◽  
Acceptable Level ◽  
Roof Runoff ◽  
Toxicity Potential ◽  
Microbiological Parameters ◽  
Permissible Levels

Urban rainwater samples, collected in various districts of Kraków during the period from the spring of 2019 to the winter of 2020, were investigated, and relevant risk implications were assessed. The contents of 31 components were determined, including: bacteria, fungi, pH, EC, Cl-, N-NO3, P-PO4, SO42-, SiO2, K, Mg, Ag, Al, Ba, Ca, Cu, K, Mg, Mo, Na, Pb, Sb, and Zn. The highest contents of the investigated elements were determined in the industrial (eastern) part of Kraków. The values of toxicity potential were <1, indicating a lack of ecological risk. The value of contamination degree indicated moderate rainwater contamination in all analyzed elements (Cdeg = 9.44). The total non-carcinogenic risk values, in both adults (hazard quotient (HQ) = 1.38) and children (HQ = 2.54), exceeded the acceptable level of one. Regarding individual elements in dermal contact, the acceptable level of 1 × 10−6 was exceeded in Pb (adults carcinogenic risk (CR) = 4.87 × 10−5, children CR = 2.23 × 10−5). The contents of the analyzed chemical compounds did not exceed the permissible levels adopted for drinking water; however, rainwater was significantly contaminated with respect to its microbiological parameters. Rainwater was suitable for non-potable use.

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 Presence of Helicobacter pylori in drinking water of Karachi, Pakistan

2011 ◽  
Vol 6 (03) ◽  
pp. 251-255 ◽  
Author(s):  
Adnan Khan ◽  
Amber Farooqui ◽  
Shahana Urooj Kazmi
Keyword(s):  
Developing Countries ◽  
Helicobacter Pylori ◽  
Drinking Water ◽  
Environmental Factors ◽  
Metropolitan Area ◽  
Membrane Filtration ◽  
Filtration Method ◽  
Contaminated Drinking Water ◽  
H Pylori ◽  
Drinking Water Samples

Background: Prevalence of Helicobacter pylori (H. pylori) infection is an increasing problem in developing countries. Several environmental factors such as overcrowding, poverty, contaminated drinking water and food are considered to contribute toward transmission of infection; however, little is known about their definitive roles. The aim of this study is to investigate the presence of H. pylori in drinking water samples of Karachi, Pakistan. Methodology: Samples of drinking water were collected from 18 different towns located in the metropolitan area of Karachi. Samples were concentrated by membrane filtration method and subjected to PCR for the detection of H. pylori. Results: Two out of 50 (4%) samples collected from two different densely populated town areas were found to be positive for H. pylori. Conclusion: The study provides evidence for the presence of H. pylori in municipal drinking water of Karachi.

scholarly journals Health risk assessment by trace elements in an aquatic system in midwestern Brazil

2021 ◽  
Vol 10 (10) ◽  
pp. e398101019037
Author(s):  
Raylane Pereira Gomes ◽  
Thais Reis Oliveira ◽  
Aline Rodrigues Gama ◽  
Fernando Santos Lima ◽  
José Daniel Gonçalves Vieira ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Trace Elements ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Socioeconomic Development ◽  
Hazard Quotient ◽  
Hazard Index ◽  
Carcinogenic Risk ◽  
Risk Indices ◽  
Daily Dose

Water is an important asset for the maintenance of life and socioeconomic development. Aquatic environments have been anthropized, receiving a large polluting load, mainly from trace elements.This study investigates the occurrence of health risks caused by 15 trace elements in the surface water of João Leite stream. Health risk indices were evaluated as average daily dose (ADD), hazard quotient (HQ), hazard index and carcinogenic risk. The risk analysis to human health of the stream João Leite water, indicated that the ADDingestion for the adults had the highest for Fe 1.86E-00 µg/kg/day and lower value for Be 8.0E-05 µg/kg/day. On the other hand, of ADDdermal the highest value was for Fe 5.02E-02 µg/kg/day and, the smallest for Sb 1.54E-05 µg/kg/day. For children to ADDingestion obtained was obtained the highest Fe value 2.60E-00 µg/kg/day and smaller for Be 1.12E-04 µg/kg/day. For ADDdermal the highest value was for Fe 8.58E-02 µg/kg/day and smaller for Sb 2.64E-05 µg/kg/day. HQ for adults ranged from 1.61E-05 to 2.97E-01 for HQingestion and 7.71E-06 to 1.01E-01 for HQdermal. For children 2.25E-05 to 3.74E-01 for HQingestion and 1.32E-05 to 1.73E-01 for HQdermal. The health risk assessment showed that for children, the trace elements present in water have a potentially adverse effect on non-carcinogenic health. The carcinogenic risks were unacceptable for both children and adults. Thus, it is recommended that the use of these waters be limited and that measures be taken to minimize pollution by trace elements.

scholarly journals Health Risk Assessment of Fe, Mn, Cu, Cr in Drinking Water in some Wells and Springs of Shush and Andimeshk, Khuzestan Province, Southern Iran

2016 ◽  
Vol 10 (2) ◽  
pp. 29-35
Author(s):  
Mohamad Sakizadeh ◽  
◽  
Rouhollah Mirzaei ◽  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Drinking Water ◽  
Environmental Protection Agency ◽  
Hazard Quotient ◽  
Hazard Index ◽  
Carcinogenic Risk ◽  
Manganese Concentration ◽  
Khuzestan Province ◽  
Geostatistical Methods

Background: In the current study,the hazard quotient, the hazard index (HI) and spatial variations of Fe,Mn,Cu and Cr in drinking water sources of Andimesk-Shush, Khuzestan Province, Southern Iranaquifer were assessed. Methods: We compared theconcentrations of aforementioned heavy metals in wells and springs inAndimeshk and Shush regions. The non-carcinogenic risk assessment of heavy metals was implemented usingUnited States Environmental Protection Agency (USEPA) index.The spatial maps in the area were developed by geostatistical methods. Results: Mean concentrations of heavy metals in groundwater sources of the study area in decreasing order was as follows: Cu >Mn> Fe> Cr. Except for iron,mean heavy metal concentrations were higher than the standard levels. Manganese concentration in 41.5% of the samples exceeded the permissible limits. Copper was higher than the safety limit in 74% of the samples, and chromium in 54% of the cases. The spatial pattern of heavy metals concentrations indicated higher concentrations in the southern parts of the region. The mean hazard quotients of most samples for the four heavy metals were lower than one, indicating that there was no immediate threat due to the exposure to these heavy metals. The calculated accumulated hazards of these heavy metals produced different results, with hazard indices of higher than one. Conclusion: The accumulated hazard indicesfor the evaluated metals were higher than one, indicating that chronic ingestion of these waters threatens the health of local consumers on the long run.

scholarly journals Geo-spatial distribution of fluoride in drinking water resources in Eastern Iran

2020 ◽  
Vol 20 (6) ◽  
pp. 2082-2095
Author(s):  
Nourahmad Nourafrouz ◽  
Ali Naghizadeh ◽  
Borhan Mansouri ◽  
Hamed Biglari ◽  
Elham Derakhshani ◽  
...  
Keyword(s):  
Drinking Water ◽  
Hazard Quotient ◽  
Ingestion Rate ◽  
Age Groups ◽  
Fluoride Concentration ◽  
Important Variable ◽  
Water Ingestion ◽  
Drinking Water Resources ◽  
Eastern Iran ◽  
Drinking Water Samples

Abstract The purpose of this study was to determine the fluoride concentrations in drinking water of the Khaf County in Eastern Iran. Moreover, health risk assessment of three age groups (children, teens and adults), sensitivity analysis and uncertainties in the risk estimates were carried out using Monte Carlo simulation. For this reason, drinking water in 33 villages and 5 cities of the Khaf County were collected during March to September 2018. Fluoride contents in drinking water samples were assayed by using a HACH-DR6000 spectrophotometer. Fluoride content in drinking water from urban area and rural area ranged from 0.50 to 0.91 mg L−1 and 0.24 to 2.31 mg L−1. Among the population of the 33 villages, about 17 villages, corresponding to 51%, receive fluoride concentrations less than 0.5 mg L−1 (minimum allowable concentration recommended by WHO), while the population of 4 villages, corresponding to 12%, receive fluoride concentrations higher than 1.5 mg L−1 (the maximum allowable concentration of fluoride in drinking water recommended by the WHO). Moreover, our findings showed that the drinking water ingestion rate, fluoride concentration in water, and the fraction of skin in contact with water were the most important variable in calculating the Hazard quotient (HQ).

Environmental predictors of diarrhoeal infection for rural and urban communities in south India in children and adults

2015 ◽  
Vol 143 (14) ◽  
pp. 3036-3047 ◽  
Author(s):  
D. KATTULA ◽  
M. R. FRANCIS ◽  
A. KULINKINA ◽  
R. SARKAR ◽  
V. R. MOHAN ◽  
...  
Keyword(s):  
Drinking Water ◽  
Rural Communities ◽  
Low Socioeconomic Status ◽  
Tamil Nadu ◽  
Urban Slums ◽  
Environmental Drivers ◽  
Environmental Predictors ◽  
Rural And Urban ◽  
Contaminated Drinking Water ◽  
Behavioural Factors

SUMMARYDiarrhoeal diseases are major causes of morbidity and mortality in developing countries. This longitudinal study aimed to identify controllable environmental drivers of intestinal infections amidst a highly contaminated drinking water supply in urban slums and villages of Vellore, Tamil Nadu in southern India. Three hundred households with children (<5 years) residing in two semi-urban slums and three villages were visited weekly for 12–18 months to monitor gastrointestinal morbidity. Households were surveyed at baseline to obtain information on environmental and behavioural factors relevant to diarrhoea. There were 258 diarrhoeal episodes during the follow-up period, resulting in an overall incidence rate of 0·12 episodes/person-year. Incidence and longitudinal prevalence rates of diarrhoea were twofold higher in the slums compared to rural communities (P < 0·0002). Regardless of study site, diarrhoeal incidence was highest in infants (<1 year) at 1·07 episodes/person-year, and decreased gradually with increasing age. Increasing diarrhoeal rates were associated with presence of children (<5 years), domesticated animals and low socioeconomic status. In rural communities, open-field defecation was associated with diarrhoea in young children. This study demonstrates the contribution of site-specific environmental and behavioural factors in influencing endemic rates of urban and rural diarrhoea in a region with highly contaminated drinking water.

scholarly journals Radiological and chemical risk assessment from uranium concentrations in groundwater samples collected from Al-Kufa area, Iraq

2020 ◽  
Vol 20 (8) ◽  
pp. 3194-3206
Author(s):  
Ali Abid Abojassim ◽  
Hayder Hussan Neama
Keyword(s):  
Annual Effective Dose ◽  
Hazard Quotient ◽  
Uranium Isotopes ◽  
Average Daily Dose ◽  
Average Value ◽  
Chemical Risk Assessment ◽  
Excess Cancer Risk ◽  
Groundwater Samples ◽  
Toxicity Risk ◽  
Daily Dose

Abstract In nature, uranium is composed of three isotopes, 238U, 235U, and 234U. Emitting alpha particles leads to radionuclides decay. The aim of this work is to set up a database for uranium concentrations in groundwater samples collected from Kufa city, Al-Najaf governorate, Iraq. Twenty four samples have been examined for detecting the presence of uranium levels using a CR-39 detector. The measured uranium concentrations were used to determine uranium isotopes with their ingested radiological toxicity risk (annual effective dose of uranium isotopes and excess cancer risk) and chemical toxicity risk (lifetime average daily dose and hazard quotient) from consumption of the water samples in the present study. The results show that the average value of uranium concentrations, uranium isotopes 238U, 235U, and 234U (1.20 ± 0.04) μg/L, (1.48 ± 0.06) Bq/L, (0.069 ± 0.002) Bq/L and (1.49 ± 0.06) Bq/L respectively. Also, it is concluded that the total average annual effective dose and excess cancer risk in all regions under study were (0.10 ± 0.004) mSv/y and (0.31 ± 0.013) × 10−3 respectively. Moreover, the average value lifetime average daily dose, and hazard quotient was 0.0389 ± 0.0016 μg/kg.day and 0.0649 ± 0.0026 respectively. All results of radiological and chemical risk assessment from uranium concentrations in groundwater samples collected from the Al-Kufa area when used as drinking water were within the global limitations of the organization International Commission on Radiological Protection (1.9 μg/L; 1 mSv/y and 0.18 mSv/y) and World Health Organization recommended (0.6 μg/kg/day). Finally, it can be concluded that uranium concentrations do not affect human health according to radiation contents.

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