Trends in water quality of selected streams and reservoirs used for water supply in the Triangle area of North Carolina, 1989–2013

Aim. Study of the influence of drinking water quality on the ecologically-dependent morbidity of the population of the Republic of Dagestan.Material and Methods. Methods of current and retrospective analysis of regional health indicators and methods of mathematical-statistical and medical-geographical analysis were used. Statistical processing of the results was carried out using the STATISTICA and Excel software packages. When carrying out laboratory studies on the quality of drinking water, we used a Lumex atomic absorption spectrometer "MGA-915MD".Results. Numerous hygiene studies indicate the direct impact of unsatisfactory drinking water quality on the health of a population. The relationship between sanitary and chemical indicators and the incidence rate for a number of nosological forms has been proven. It is generally accepted that human health is influenced by lifestyle factors (working, living and relaxation conditions), heredity and the ecological condition of the area of residence, including the quality of drinking water. Although it is not possible to differentiate the share of the negative effect caused by the consumption of poor quality drinking water but the incidence of certain nosological forms (cancer of the esophagus, gastrointestinal tract and kidney diseases) in the those regions of the Republic of Dagestan under consideration correlates with the characteristics of drinking water.Conclusion. The problem of pollution of water supply sources for the population in the dynamics of the long-term remains a priority concern. The quality and safety of drinking water are decreasing, which cannot but have a negative impact on public health. Correlation linkages between indicators of drinking water quality and oncological morbidity of the population were also established in indicators below the maximum permissible concentrations, which corresponds to a typical logistic model of causal relationships and serves as evidence of the high dependence of health disorders on chemical contamination of water supply sources.

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Impact of Changes in Land Use and Land Cover in the Contribution Basin of Doutor João Penido Water Supply Reservoir of Juiz de Fora, MG, Brazil

Journal of Management and Sustainability ◽

10.5539/jms.v11n1p108 ◽

2021 ◽

Vol 11 (1) ◽

pp. 108

Author(s):

Juliana Nazareth de Lana ◽

Márcio de Oliveira ◽

Vanessa Romario de Paula ◽

Cézar Henrique Barra Rocha

Keyword(s):

Water Quality ◽

Land Use ◽

Land Cover ◽

Water Supply ◽

Quality Parameters ◽

E Coli ◽

The City ◽

Water Supply Reservoirs ◽

Limnological Parameters

Changes in the land use and land cover in areas adjacent to water reservoirs directly affect the quality of this water. This research presents a study on the water quality in the basin of one of the most important public water supply reservoirs in the city of Juiz de Fora, Minas Gerais. The main objective of this study was to analyze the behavior of limnological parameters and the correlation with land use and land cover in the contribution basin of the Doutor João Penido reservoir (CBJPR). The methodology was based on the analysis of water quality parameters, related to water samples collected from 2012 to 2015. Six sampling points were chosen from different locations: spring, medium course, main tributaries of the reservoir and the reservoir catchment. The parameters analyzed were turbidity, total solids (TS), oxygen consumed (OC), dissolved oxygen (DO), electrical conductivity, total nitrogen (TN), total phosphorus (TP), E. Coli, temperature, pH and total dissolved solids (TDS). The Kendall’s tau test was used to analyze the correlations between the parameters of water quality, land use and land cover in the CBJPR. In general, measured parameters showed better results in spring and in reservoir catchment, showing a worse quality of the water along the tributaries and the dilution power of the reservoir. The correlations pointed to the need for protection and preservation of forests in strategic locations to ensure good water quality.

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Hydrology and water quality of Little Cross Creek, Cumberland County, North Carolina, 1996-98

10.3133/wri994284 ◽

2000 ◽

Keyword(s):

Water Quality ◽

North Carolina ◽

Cumberland County

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Hydrology and water quality of the Great Dismal Swamp, Virginia and North Carolina, and implications for hydrologic-management goals and strategies

Scientific Investigations Report ◽

10.3133/sir20205100 ◽

2021 ◽

Author(s):

Gary K. Speiran ◽

Frederic C. Wurster

Keyword(s):

Water Quality ◽

North Carolina ◽

Great Dismal Swamp ◽

Dismal Swamp ◽

Hydrologic Management

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PROBLEMS OF WATER SUPPLY IN THE TERRITORY OF THE OREL REGION AND WAYS TO SOLVE IT

10.37539/july192.2021.31.64.008 ◽

2021 ◽

Author(s):

Павел Алексеевич Лапин ◽

Сергей Александрович Копылов ◽

Дмитрий Васильевич Елисеев

Keyword(s):

Water Quality ◽

Water Supply ◽

The State ◽

Quality Of Water ◽

The City

В статье анализируется состояние водного фонда в области и обеспеченность жителей региона водой. Рассматриваются основные проблемы неудовлетворительного качества воды в районах области и в г. Орле. Предлагается комплекс мероприятий с целью повышение качества водоснабжения на территории Орловской области путём строительства пяти объектов водоснабжения. The article analyzes the state of the water fund in the region and the provision of water to the residents of the region. The main problems of unsatisfactory water quality in the districts of the region and in the city of Orel are considered. A set of measures is proposed to improve the quality of water supply in the territory of the Orel region through the construction of five water supply facilities.

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