Assessing health risks associated with drinking water quality (on the example of regions in Bashkortostan where oil fields are located)

Rakhmatullina, L.R.; Suleymanov, Rafail A.; Валеев, Т К; Бактыбаева, З Б; Рахматуллин, Н Р

doi:10.21668/health.risk/2021.2.03.eng

Cited by 7 publications

(1 citation statement)

References 10 publications

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“…Например, выделяются исследования, представляющие неканцерогенный риск как вероятность развития симптомов хронической интоксикации на протяжении определенного времени в количестве дополнительных случаев общей заболеваемости [10,11]. Другие авторы представляют неканцерогенный риск как отношение поглощенной дозы вещества к референтной и его специфическое воздействие на критические органы и системы [12][13][14].…”

Section: коммунальная гигиенаunclassified

Some Methodological Approaches to Assessing Health Risks Related to Potable Water Quality in Centralized Water Supply Systems

Богданова¹,

Alenitskaya²,

Sakharova³

2023

PH&LE

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Introduction: In the current variety of normative documentation for characterizing the impact of water pollutants from centralized water supply systems on public health, it seems relevant to consider methodological approaches to the hygienic assessment of drinking water and unify them in accordance with modern methods. Objective: To consider methodological approaches to assessing risks posed by potable water quality in centralized water supply systems based on public health monitoring data. Materials and methods: The authors reviewed regulatory documents on health risk assessment from chronic exposure to chemicals in tap water. An algorithm has been developed to optimize the assessment of three types of potential risk posed by chemical and organoleptic water quality indicators: carcinogenic, non-carcinogenic, and organoleptic. Results: In the first place, we determined steps of risk assessment aimed at focusing on priority indicators and excluding those chemicals which method of determination does not allow determining the concentration or interferes with its averaging. The variability in the assessment of non-carcinogenic risk due to differences in the values of safe doses/concentrations and the procedure for calculating risk values and their interpretation was noted. A comparative description of the procedure for assessing carcinogenic risk and the classification of its levels are given. The authors present an algorithm for optimizing risk assessment related to the quality of drinking water from centralized water supply systems based on socio-hygienic monitoring data. Conclusion: The presented algorithm, which is based on regulations with authors’ additions, involves most of the aspects that hygienists face when planning and studying the health effects of drinking water quality. It enables optimization of assessing risks of exposure to water contaminants from centralized water supply systems based on socio-hygienic monitoring data. In addition, it summarizes the ambiguous procedure for risk assessment established in the regulatory documentation, supplemented by the experience of domestic long-term studies.

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Section: коммунальная гигиенаunclassified

Some Methodological Approaches to Assessing Health Risks Related to Potable Water Quality in Centralized Water Supply Systems

Богданова¹,

Alenitskaya²,

Sakharova³

2023

PH&LE

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Oil sludge barns as objects of accumulated environmental damage and sources of public health risks

May

Maksimova

Termulaeva

et al. 2022

Hygiene and Sanitation

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Introduction. The research is vital given the task to quantify public health risks caused by objects of accumulated environmental damage. A health risk is a criterion to establish what objects of accumulated environmental damage should be considered priority ones for elimination. Our research goal was to assess and characterize public health risks caused by oil sludge barns located in Argun municipal district in Chechnya, Russian Federation to determine whether this object of accumulated environmental damage should be considered a priority for elimination. The object is typical for this type of waste storage. Materials and methods. Our research concentrated on examining oil sludge barns with the total volume of wastes exceeding one hundred thirty thousand cubic meters. They were located within a settlement less than 50 meters away from the closest residential area. Approximately 40.2 thousand people permanently reside in a zone exposed to the analyzed object. We collected and analyzed background data on the object and performed wide-scale instrumental measurements of soils, drinking water, ambient air and food in the zone influenced by the object. Overall, we accomplished more than 400 tests to estimate safety and quality of soils, drinking water from non-centralized water supply sources and ambient air. Results. We established soils, drinking water from non-centralized water supply sources, and ambient air to be polluted with chemicals typical for oil sludge barns in the zone located next to the object, the closest residential area included. Major risk factors were oil products and their specific components, heavy metals (copper, arsenic, cadmium, and lead), and benz(a)pyrene. The total health risk for people living in the closest settlements was rated as “high”. Limitations. All the obtained estimates, health risk rates included, describe oil sludge barns located in a zone with specific geological and climatic-geographic conditions and in close proximity to residential areas. Conclusion. Assigning the analyzed object into a “high risk category” allows considering it a priority for elimination and it is mandatory to include it in the list of objects that should be eliminated immediately. After the object is eliminated, this territory is aimed for housing development. With bearing this in mind, it seems advisable to perform comparative control examinations of the environment after all the works on eliminating the accumulated environmental damage have been completed.

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Methodical grounds and experience gained in implementing complex assessment of activities aimed at risk to public health and effectiveness of measures to improve the quality of drinking water in centralized water supply systems

Zaitseva

Kleyn

May

et al. 2022

Hygiene and Sanitation

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Introduction. Safe and qualitative drinking water is among the most significant conditions for minimizing environmental risks to public health. Our research goal was to develop and test methodical approaches to complex assessment of activities aimed at improving drinking water quality in centralized water supply systems. Within these approaches, effectiveness of such activities should be estimated as per health risk criteria. Materials and methods. Fuzzy set theory (fuzzy logic) was selected as relevant methodical grounds for estimating effectiveness of implemented activities. Our research objects were activities performed within regional programs and indicators of drinking water quality. A rate of public health risk was selected as a criterion to estimate effectiveness of an activity. Results. We developed a set of methodical tools that allowed assessing drinking water quality considering a variety of heterogeneous and instrumentally measurable indicators that were divided into several groups. Overall, we included more than 100 indicators that were grouped as organoleptic, sanitary-microbiological and parasitological, sanitary-chemical and radiological ones. We suggested a weighting factor for each indicator of drinking water quality. This weighting factor correlated with severity of health disorders under exposure to improper values of a specific indicator. Ranges of values for each indicator were scaled as per a degree of its hazard for human health and weighting factors were established for each indicator group. The total risk considered effects produced by all the indicator groups, their share contribution to a negative health outcome also taken into account. We determined a value of the membership function to establish where a specific risk would be found on the scale with risk rates from low to extremely high. Health risks were assessed prior to implementation of activities and after it. We also suggested a scale to measure effectiveness of implemented activities. Those activities that resulted in health risk reduction by less than 20% were estimated as low-effective ones. If a risk went down by 20-60%, activities were estimated as moderate or average-effective; a reduction by more than 60% indicated that implemented activities were effective or even highly effective. Limitations. The use of the existing information database on adverse effects and reference levels under exposure to environmental factors. Should new relevant data become available, this might result in the necessity to revise risk scales and weighting factors of specific indicators. Conclusion. We tested the suggested methodical approaches within actual projects implemented currently. The testing revealed their relevance to the existing tasks since these approaches facilitate proper assessment of activities as per a system of heterogeneous qualitative and quantitative indicators.

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Assessing health risks associated with drinking water quality (on the example of regions in Bashkortostan where oil fields are located)

Cited by 7 publications

References 10 publications

Some Methodological Approaches to Assessing Health Risks Related to Potable Water Quality in Centralized Water Supply Systems

Some Methodological Approaches to Assessing Health Risks Related to Potable Water Quality in Centralized Water Supply Systems

Oil sludge barns as objects of accumulated environmental damage and sources of public health risks

Methodical grounds and experience gained in implementing complex assessment of activities aimed at risk to public health and effectiveness of measures to improve the quality of drinking water in centralized water supply systems

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