Excessive Concentration of Manganese in Drinking Water and Risk to the Health of the Population of the Northern Region

Korchina, T. Ya.; Minyaylo, L.A.; Korchin, V. I.

doi:10.35627/2219-5238/2018-299-2-28-33

Cited by 8 publications

(1 citation statement)

References 5 publications

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“…In addition, according to a comprehensive survey, an increased content of Mn in the hair of residents of various sex and age groups was registered in a number of federal districts of the Russian Federation (Skalny et al, 2011(Skalny et al, , 2012(Skalny et al, , 2013(Skalny et al, , 2014. In this regard, in recent decades, scientists have begun to pay special attention to the study of the consequences of chronic low-level exposure to Mn on the human and animal organisms (Korchina, Minyaylo, and Korchin, 2018;Fernández-Olmo et al, 2021;Racette et al, 2021).…”

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confidence: 99%

Influence of subchronic exposure to manganese carried by female rats during pregnancy on the behavioral and cognitive abilities of their offspring at later stages of postnatal development

Kazakova,

Marshinskaya,

Notova

2024

BioComm

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The study evaluated the effects of prenatal exposure to manganese (Mn) on the functional state of offspring at later stages of postnatal development (PND). Female rats were treated with MnSO4·5H2O in the diet at a dose of 1433 mg/kg starting 28 days prior to breeding and through gestation. The pregnancy proceeded normally, no physical abnormalities were observed. There was a lag in physical development of the offspring, which was characterized by a later opening of the eyes, the formation of a coat and the eruption of incisors, the weight gain was attenuated from PND 0-84. Offspring had hyperactive behavior and deterioration in spatial learning and memory. The level of Mn in the blood serum and cerebral cortex was higher than the control values by 11 % and 53 % respectively. The acetylcholinesterase level in the serum was higher by 47 %. These findings highlight the risk of prenatal exposure to subchronic doses of Mn.

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Section: Introductionmentioning

confidence: 99%

Influence of subchronic exposure to manganese carried by female rats during pregnancy on the behavioral and cognitive abilities of their offspring at later stages of postnatal development

Kazakova,

Marshinskaya,

Notova

2024

BioComm

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Comparative Characteristics of Quality Parameters of Waters of the Oka River in Places of Water Intake of Utility and Drinking Water System in Ryazan

Litvinova

Дементьев

Lyapkalo

et al. 2022

I.P. Pavlov Russian Medical Biological Herald

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INTRODUCTION: Surface water sources play an important role in supply of large cities with water. Their waters are subject to anthropogenic pollution with different chemical compounds which may be significant risk factors for the health of the population. The article presents the results of comparative sanitary-hygienic characteristics of the water quality of the Oka river in places of water intake of utility and drinking water supply system of Ryazan. Being the only surface source of water supply, the Oka river provides 53% of the total water consumption of the Ryazan population, therefore a rational choice of the place of water intake can have a considerable impact on the effectiveness of water conditioning and purification and on the final quality of drinking water. AIM: To give a comparative sanitary-hygienic characteristic of the water quality of the Oka river in places of the water intake of the utility and drinking water supply system of Ryazan. MATERIALS AND METHODS: A comparative evaluation of the water quality of the Oka river, as a surface source of water supply, was carried out based on the average long-term values of control parameters (organoleptic, microbiological, chemical) and the proportion of samples that do not meet hygienic standards in the sections of three water intakes in Ryazan in 20122019. The average parameters were compared by the method of variance analysis; for paired comparisons, Scheffe and Tamhein criteria were used, taking into account the results of Levene test. The statistical parameters were calculated in SPSS Statistics 19 program. RESULTS: The chemical composition of the Oka river water was characterized by the greatest pollution with iron (2+) and aluminum. The water of Oksky and Borkovskoy water intakes was characterized by higher average concentrations of iron (2+) and ammonia, as well as greater contamination with generalized and thermotolerant coliform bacteria, compared with the water of Sokolovsky water intake. CONCLUSION: A lower initial quality of the water in Oksky and Borkovskoy water intakes may be due to their location in the 'blind' river course characterized by the processes of eutrophication and slowed down water exchange. High concentrations of iron (2+) may be associated with supply of stream water from the underground sources or with anthropogenic pollution.

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Ranking of territories in the Voronezh region by the incidence rates resulting from chemical load

II,

2024

Российский Вестник Гигиены

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Numerous studies conducted by domestic and foreign researchers report the influence of environmental pollution on shaping morbidity of a population. The study was aimed to rank the territories of the Voronezh Region by the incidence rates probably resulting from chemical pollution of atmospheric air, drinking water, soils in residential areas recorded in 2018–2022. The districts were divided into three groups based on the long-time annual average incidence rates. The degree of correlation between the disease entities and the chemical environmental factors was determined through correlation analysis. The findings have shown that the city of Voronezh and Pavlovsky District are the territories at risk of the disorders with the etiology that is likely to be associated with chemical air pollution. The territories at risk of the disorders that are likely to be associated with chemical pollution of drinking water include Kashirsky, Kantemirovsky, Olkhovatsky, Ternovsky, Khokholsky districts, while the territories at risk of the disorders that are likely to be associated with chemical pollution of soils in residential areas include the city of Voronezh, Borisoglebsky city district, Liskinsky and Rossoshansky districts. The situation observed in the above administrative territories requires in-depth study of the degree of the impact of chemical factors on public health and identification of the sources of these factors. The findings can be used to develop the guidelines on minimization of the adverse effects of chemical environmental factors on public health in the region.

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Excessive Concentration of Manganese in Drinking Water and Risk to the Health of the Population of the Northern Region

Cited by 8 publications

References 5 publications

Influence of subchronic exposure to manganese carried by female rats during pregnancy on the behavioral and cognitive abilities of their offspring at later stages of postnatal development

Influence of subchronic exposure to manganese carried by female rats during pregnancy on the behavioral and cognitive abilities of their offspring at later stages of postnatal development

Comparative Characteristics of Quality Parameters of Waters of the Oka River in Places of Water Intake of Utility and Drinking Water System in Ryazan

Ranking of territories in the Voronezh region by the incidence rates resulting from chemical load

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