Content Of Petroleum Products Research Articles

КОРРЕЛЯЦИОННЫЙ АНАЛИЗ СИЛЫ СВЯЗИ МЕЖДУ РЕЗУЛЬТАТАМИ МОНИТОРИНГА АВАРИЙНОГО НЕФТЯНОГО ЗАГРЯЗНЕНИЯ ПОЧВ СКРИНИНГОВЫМИ МЕТОДАМИ

Major accidents at oil and gas industry enterprises related to soil contamination with petroleum products are considered. Based on the analysis of scientific research, it was determined that the existing methods for assessing the content of petroleum products in the soil have a number of significant limitations. Overcoming them requires the organization of a soil monitoring system, characterized by the possibility of rapid determination of pollutants and the allocation of clear boundaries of the permissible content of oil and petroleum products. The use of the arbitration method of infrared spectroscopy and the molecular luminescence method for estimating the content of petroleum products in the soil is experimentally justified. A correlation analysis was carried out between the measurement results obtained using the two presented methods. It was found that at low concentrations of petroleum products in soils, there is a linear dependence with a very high binding force, characterized by a Pearson correlation coefficient of 0,93. With relatively high values of the content of petroleum products in the soil and a significant spread of the experimental data obtained, it is advisable to use rank correlation. The use of the identified dependencies allows us to form a fairly complete picture of the situation in the study area associated with soil contamination with petroleum products, based on the results obtained using one of the presented screening methods. This greatly simplifies the procedure for assessing the state of the soil cover and creates prerequisites for reducing decision-making time and increasing the responsiveness to emerging emergencies.

TECHNOLOGY OF WATER TREATMENT FROM OIL PRODUCTS USING MAGNETIC LIQUIDS FROM INDUSTRIAL WASTE

This article explores new perspectives on the use of magnetic fluids for efficient water treatment of petroleum products. A review of existing technologies and their limitations is provided, emphasizing the need for new approaches. The use of magnetic fluids that are highly selective to petroleum products is investigated. Experimental results show that the modified magnetic fluids effectively remove petroleum products from water, providing high quality treatment. The study also examines the durability and cost-effectiveness of the proposed approach, suggesting its practical application in water treatment plants. The paper provides a valuable contribution to the water treatment field, opening up new opportunities for effective removal of petroleum products and protection of water resources. Aims of the study are to reduce the concentration of petroleum products in wastewater; to develop an effective technology for wastewater treatment from petroleum products using magnetic fluid. Objectives of the work are to study the composition of iron-containing waste; to consider the technology of wastewater treatment from petroleum products; to study the parameters of wastewater treatment from petroleum products.The objects of the study are industrial iron-containing waste, magnetite obtained from waste, as well as magnetic liquid synthesized on the basis of magnetite and wastewater.

Assessment of the Ra-226 and Ra-228 Content in the Bottom Sediments of the Kolva and Usa Rivers (Bolshezemelskaia Tundra of the Nenets Autonomous Region and the Komi Republic)

An assessment was made of the content of natural radionuclides Ra-226 and Ra-228, as well as petroleum products, in the bottom sediments of the Kolva and Usa rivers (Bolshezemelskaia tundra of the Nenets Autonomous Region and the Komi Republic). The values of the specific activities of the studied radionuclides, their isotope ratios, the concentration of petroleum products are obtained, and the correlation dependences of the specific activities of Ra-226 and Ra-228 on the concentration of petroleum products are established. It has been demonstrated that certain sections of the Kolva river are characterized by increased content of Ra-226 in bottom sediments. It was concluded that the likely source of radionuclide entry into bottom sediments is the entry of oil and gas waste into surface waters.

КАТАСТРОФА SEAMARK B ЦЕМЕССКОЙ БУХТЕ

As part of the monitoring of environmental objects, studies of the environmental consequences were carried out immediately after the catastrophic shipwreck of the cargo ship Seamark in Tsemes Bay. In addition to human casualties and material losses, each wreck causes damage to the ecology of the seas. Human pollution of the marine environment leads to its degradation and the accumulation of toxic substances in water and living organisms. Sampling of sea water within two months from the moment of the disaster made it possible to assess the dynamics of the content of impurities in sea water. The general parameters of sea water were determined using standard methods (total mineralization, pH, anionic surfactants), as well as the content of petroleum products. It has been established that even at a considerable distance from the site of the disaster, the content of petroleum products in sea water exceeds the norm by almost two orders of magnitude. The real and future consequences of seawater pollution with petroleum products for the ecology of the sea are described.

THE IMPACT OF SOIL POLLUTION BY OIL ON THE CONTENT OF HUMIC SUBSTANCES

The research assesses the impact of oil contamination on soil humus substances. Laboratory experiments with varying concentrations of petroleum products on different soil types revealed that even small amounts of oil lead to significant degradation of humus substances, altering their structure and reducing their content. These changes may disrupt soil properties, diminishing fertility, structure, and water retention capacity, and reducing microbial activity. Understanding this influence is crucial for developing strategies to rehabilitate polluted soils and sustain ecosystems. Keywords: Humus, acidity, oil contamination, phytotesting, carbon content, oil mineralization, soil toxicity

Preventive geochemical barriers during transport construction

The article discusses the possibility of using chlorite crushed stone as part of geochemical barriers in transport construction. It has been shown that during the construction of railways and during their operation, the main pollutants are petroleum products and heavy metal ions. To substantiate and study the neutralizing properties of chlorite crushed stone, infrared spectroscopy, ionomer, atomic absorption spectrometry and the gravimetric method for determining petroleum products were used. Research has shown that chlorite crushed stone is a quartz-albite-chlorite shale with a small inclusion of carbon; its physical and mechanical characteristics are not inferior to granite crushed stone. The oil capacity of chlorite crushed stone depends on the concentration of petroleum products in the model solution and ranges from 0.03 to 0.5 g/g. Chlorite crushed stone has a capacity towards nickel, iron and cadmium ions, while their simultaneous presence in the model solution does not have selectivity towards these ions. It has been proven that when the capacity of chlorite crushed stone is fully realized in relation to one of the heavy metal ions, it is not washed out and replaced by another metal ion (for example, nickel and iron ions). It has been proven that the presence of organic contaminants in the model solution does not significantly affect the capacity of chlorite crushed stone for heavy metal ions. It has been shown that chlorite crushed stone, due to its physical, physical-mechanical and chemical properties, can be used in geochemical barriers to protect the environment from pollution.

Pollutants and Their Potential Toxicity in the Water Bodies of the "Oleksandriya" Arboretum (Ukraine)

The levels of contamination of the water bodies of the "Oleksandriya" arboretum (the town of Bila Tserkva, Ukraine) by heavy metals, petroleum products, and anionic synthetic surfactants were investigated in August 2022 and their potential toxicity for aquatic organisms was assessed. It has been proven that the detected concentrations of some heavy metals (Cu, Zn, Mn, Fe, and Pb) in the ponds located in the Western ravine of the "Oleksandriya" arboretum can exert an adverse effect on the vital activity of hydrobionts (aquatic plants, fish, etc.). The maximum concentration of petroleum products was registered in the water of the Kholodny pond (the Eastern ravine of the park), which can cause toxic effects in hydrobionts. The water of the ponds also contained anionic synthetic surfactants probably due to the influx of municipal sewage, which also results in worsening the ecological and toxicological state of the studied water bodies.

Биоаугментация нефтезагрязненных почв

In a field experiment, the high efficiency of the in situ bioaugmentation method was demonstrated using three biological products (Putidoil, Arkoil and Multibak Asset) to clean up the territory in the Volgograd region 6 years after an emergency oil spill. The use of these biologics allowed for 4 months of treatment to reduce the concentration of petroleum products in chestnut soil (initially from 5,100 to 5,500 mg /kg) by 72.2-98.6%. The best results were obtained at the site treated with Putidoil biologics, where the concentration of petroleum products decreased from 5,500 to 699 mg/kg by the end of the season. Detoxification of oil-contaminated soils with the help of biological products to ensure an environmentally safe soil condition. Keywords: OIL PRODUCTS, CHESTNUT SOIL, BIOLOGICAL PRODUCTS, PUTIDOIL, ARCOIL, MULTIBAS ACTIVE, BITOAUGMENTATION, GRAVIMETRIC METHOD

Distribution of Hydrocarbons in the Snow Cover of Natural and Urbanized Landscapes in the South of the Far East, Russia.

This study analyzed total organic carbon (TOC), petroleum products (PP), suspended materials (SM), volatile aromatic hydrocarbons (toluene, o-xylene, etc.) and n-alkanes in the snow cover of Bol'shekhekhtsirsky, Zeysky state natural reserves and Khabarovsk, on 4, 5 and 9 stations in the south of the Russian Far East in March 2020. In Bol'shekhekhtsirsky reserve, the concentrations of TOC, PP, and SM in snow samples were in the range of 1.5-2.4, 0.06-0.11, and 11.4-1.9mg/L, 1.4-1.9, 0.02-0.05, and 11-23mg/L in Zeysky reserve, while in Khabarovsk were 1.7-23.7, 0.12-1.26, and 25-294mg/L, respectively. In addition, the benzene, toluene, and o-xylene concentrations of snow samples ranges from not detected (ND) to 2.4, ND-3.1, and 1.1-2.7µg/L in Khabarovsk, ND-1.3, ND-2.1, and ND-2.7µg/L, respectively in Bol'shekhekhtsirsky reserve. Carbon preference index values of n-alkanes were consistent with anthropogenic sources for stations 7, 8 and 2 in Khabarovsk (Heat Power Plants 1, 2 and city roads). The snow of the Zeysky Reserve is not contaminated with organic pollutants, and can be used as a conditional background for the south of the Russian Far East.

RESULTS OF RESEARCH OF CHEMICAL METHODS TO IMPROVE THE EFFICIENCY OF WATERTREATMENT FOR INJECTION INTO THE SYSTEM OF RESERVOIR PRESSURE MAINTENANCE

The separated water from Preliminary Water Removal Unit isused as a working agent of the pressure maintenance system and, accordingly,the quality must meet regulatory requirements. Pumping waterinto the reservoir without preliminary preparation and considering thephysicochemical properties of water and porosity of the reservoir leadsto contamination of the bottom-hole zone of the well and to reducing theintake capacity of injection wells. Recovery of injection well performancerequires a lot of material and energy costs.The use of gravity sedimentation and oil sedimentation tanks make itpossible to obtain water with a content of petroleum products up to30-50 mg/l and mechanical impurities of 20–40 mg/l. The standardapproach to solving the problems of increasing loads and destruction ofstable oil-water emulsions is increasing the capacity of the treatmentfacility by building additional reservoir equipment. This approachinvolves a number of significant time and financial costs and does notallow to organize a solution to the problem in a short time.The influence of deoilers to the quality of water treatment has been studiedin order to provide deeper purification of reservoir water for thepossibility of obtaining water containing petroleum products andmechanical impurities up to the requirements of the OST-39-225-88.Deoilers do not dissolve or remove petroleum products. Deoilers enlargepetroleum productsby bringing them closer to each other. Then mechanicalimpurities and petroleum products must be removed from the existingwater treatment system. The research of the influence of deoilers forthe stabilization of the oil-water emulsion has been carried out.According to the results of studies of the effect of deoilers on the qualityof water treatment, with the use of all tested deoilers, the content ofpetroleum products in the water decreases and it is possible to obtainwater of the quality required by OST-39-225 under the conditions of oiland water treatment during the technological mode of operation of theUPS. At the same time, however, the supply of trapped oil to the pipelinein front of the oil sedimentation tanks leads to an increase in the residualwater in the treated oil. To minimize the risks of disruption of thetechnological regime at the UPS, the recommended ratio of incomingliquid — captured oil when using deoilers for water purification wasdetermined.

Wpływ zanieczyszczeń na zawartość składników odżywczych w glebie

Soil degradation occurs as a result of the ingress and accumulation of excessive amount of pollutants in the soil. The article presents the results of theoretical and experimental studies of the complex effect of soil contamination (concentration of petroleum products, toxic salts, dense residue, sodium ions, sulfate ions, magnesium ions, calcium, chloride ions, bicarbonate ions) on the content of nutrients (alkaline hydrolyzed nitrogen, phosphorus, potassium, humus). A detailed analysis of scientific papers has been carried out, based on which the main scientific tasks solved in the article have been formulated. It has been established that soil-salt processes are insufficiently studied and are the object of scientific research in recent years. At the first stage of research, sampling was carried out and the content of nutrients and pollutants in the soil was determined. Determination of element concentrations was performed by collecting soil samples and their subsequent laboratory testing. At the second stage, a correlation-regression analysis of the obtained data was performed and multiple linear regressions were established. The interaction of substances in the soil was determined by analyzing the obtained multiple linear regressions. Two types of soils were studied: with chloride and with sulfate type of salinization. For soils with chloride type of salinity, dependences have been established for the content of humus, alkaline nitrogen and potassium, while in case of phosphorus multiple linear regression does not exist. For soils with sulfate type of salinization, multiple linear regression dependences of concentrations of alkaline nitrogen, phosphorus, potassium have been determined. It is established that the complex influence of the studied elements is decisive. No regression dependence was found for the humus content, which indicates that the concentration of the studied elements has almost no effect on the humus content in the soil. Comparison of the obtained multiple linear regressions with the results of laboratory studies showed a good correlation between these data series. The obtained regularities of pollutant and nutrient interactions in soils are expected in future to enable creation of scientific bases for development of new methods of desalination of soils polluted by formation waters as well as for planning effective reclamation actions.

Ecological assessment of heavy metals and petroleum products in soils of roadside areas of Tyumen city

The article assesses the content of petroleum products and heavy metals (cadmium, copper, zinc, lead) in the soils of roadside territories of Kalininsky administrative district of Tyumen. The content of petroleum products and heavy metals (gross and mobile forms) in soil samples collected near petrol stations and road crossings was analyzed. The correlation between the intensity of the traffic flow and the gross content of heavy metals is shown. According to generalized data, the content of petroleum products near the studied road junctions is 30% higher than in the area of gas stations. The gross content of lead in the soils of roadside areas near automobile intersections is 64% higher. But the gross content of cadmium, copper and zinc is lower than near gas stations. The absence of exceeding the standards for the gross content and mobile form of the studied heavy metals, with the exception of cadmium, was revealed. The relationship between the intensity of the traffic flow and the gross content of heavy metals is direct, characterized by positive correlation coefficients from 0.37 to 0.88. The closest relationship between the intensity of the traffic flow and the level of accumulation of oil products has been established.

Использование вермикультуры для переработки донных отложений, загрязненных нефтепродуктами

The vermiculture was kept in plastic containers on a mixture of sludge from oil mine treatment facilities and peat. It has been shown that bottom sediments contaminated with petroleum products can be used as a component of a vermicompostable mixture. During the processing process, the content of petroleum products in the composting mixture significantly reduced, but the level of reduction varied depending on the ratio of sludge and peat in the vermicomposting mixtures. The optimal mixture options for faster processing of the substrate include a mixture of contaminated sludge and filler in a ratio of 30:70 and 50:50. Reproductive performance of earthworms, as well as the increase in the number and biomass of juveniles, remains low in all variants of mixtures, but is close to optimal at a 30% content or in composted material.

Features of the self-restoration of the oil-contaminated peat-bog soil – a field study

The features of self-restoration processes of the oligotrophic peat-bog soil disturbed by crude oil pollution were studied. Soil contamination was carried out in field long-term experience. The key soil self-recovery indicators were: (1) the rate of carbon dioxide emission by the soil, which quantitatively characterizes the mineralization of petroleum hydrocarbons by microorganisms; (2) content of petroleum products. The microorganisms of the studied soil were characterized by low resistance to the toxic effects of oil: during the first three years of the experiment, the respiration of oil-contaminated soils was significantly lower than in pure soil. Restoration of microbial respiration to the control level and its further intensive growth occurred after 4-5 years of the experiment only in soils with low oil doses: 0.3 and 0.6 l m-2. In time, this coincided with the maximum rate of oil decomposition, which indicates the microbial nature of its utilization. The respiration of soil with oil high doses (1.8 and 3.0 l m-2) remained significantly lower than in pure soil throughout the entire experiment. At the same time, the amount of oil products in these samples markedly decreased. Oil degradation in these variants could occur due to the activity of anaerobic bacteria or abiotic processes.

Factors leading to high concentrations of pollutants in surface waters

The dependence of the frequency of excess of hygienic standards in surface waters on individual substances and complex indexes is investigated. It was found that in some cases, there are significant dependencies on production-induced factors (water withdrawal, wastewater discharge, percentage of plowed lands), while in other cases natural factors (climatic humidity, geological structure of catchment areas) are the predominant ones. Technogenic factors are predominate in case of high values of biochemical oxygen consumption, concentrations of petroleum products and nitrogen compounds. Natural factors of high concentrations are more significant for metal ions, chlorides, sulphates and total salt concentrations. With regard to metals, especially copper and zinc, very strict standards have been adopted in Russia, which also contributes to a very high repeatability and multiplicity of their excess. As for phenols and chemical oxygen consumption, the role of natural or man-made factors is less unequivocal.

Bioremediation potential of native microorganisms of the southern chernozem

In the course of the conducted studies, main groups of soil microorganisms in the southern chernozem were identified. The resistance of isolates to the action of oil in the concentration range of 15–25%, the possibility of using it as a carbon source, the ability of soil microbiota to biodegradate oil in contaminated soil and the resistance of bacteria to low temperatures, high NaCl concentrations, acid and alkali resistance were established. 15 genera (31 species) of heterotrophic bacteria were isolated from uncontaminated soil samples of the southern chernozem subtype. Our assessment of the abundance dynamics of microorganisms isolated from laboratory contaminated soils showed that as a result of oil exposure, there was a significant decrease in the numbers of microorganisms: by the 180th day of our experiment, 10 bacteria species belonging to 3 genera were isolated, namely: Bacillus, Micrococcus and Serratia. Among the isolated bacteria, resistance to the action of the pollutant at a concentration of 25% was established for B. coagulans, B. mojavensis, B. megaterium, M. luteus, as well as for the museum strain of B. pumilus CM. By cultivating the studied bacterial strains on a carbon-free medium M9 with 15 and 20% oil added, their ability to use petroleum hydrocarbons as the only carbon source was established; however, when the concentration increased to 25%, only M. luteus, B. mojavensis and B. pumilus KM retained this ability. The presence of hydrocarbon-oxidizing bacteria in soil samples contributed to the 42% decrease in the oil mass concentration in 180 days. The most significant decrease in the concentration of petroleum products occurred in the period from the 10th to the 30th day and amounted to 25%, which is probably due to the increase in the numbers of heterotrophic bacteria. The ability to grow at a temperature of +4°C was established for representatives of the genus Bacillus, including the museum strain of B. pumillus CM, 4 strains of bacilli remained viable in an acidic environment (pH 5), 7 strains of bacilli and M. luteus and S. plymuthica remained viable in an alkaline environment (pH 9). The studied bacterial strains were growing on a GRM-agar with a NaCl concentration of 7%, the ability to grow at a NaCl concentration of 15% was preserved only by the museum strain of B. pumillus KM. The obtained results open the prospects for the use of hydrocarbon-oxidizing bacteria with a high adaptive potential as potential oil destructors capable of biodegradation at low temperatures, in conditions of high salinity and in a wide range of pH of the medium.

Physiological changes and rate of resistance of Acrosiphonia arcta (Dillwyn) Gain upon exposure to diesel fuel

The changes in the morpho-physiological state of green alga Acrosiphonia arcta upon exposure to diesel fuel (DF) at concentrations of 20; 100; 1,000; 2,000; 3,000 of maximum permissible concentrations (MPC) were studied. The main physiological stress markers, such as enzymes of the antioxidant system (AOS), non-enzymatic antioxidants (carotenoids) and free amino acids (as components of plant metabolome) were measured. In general, all concentrations of the petroleum product used changed the activity of the antioxidant system, changed the intensity of physiological processes (photosynthesis, free amino acid synthesis) and also affected the structure of microbiomes inhabiting the surface of algae.It was shown that the concentration of DF within 1 mg/l (20 MPC) was not lethal as plants were able to maintain physiological activity and the observed changes were reversible.Although DF exposure caused decreases in superoxide dismutase (SOD) activity, proline concentration and photosynthetic rate, increases in catalase activity and pigment concentration were observed. After the effects of stress disappeared, most physiological parameters were restored, except for carotenoid content.Higher DF concentrations (100 MPC and higher) caused injury to cell structures and damage to the pigment apparatus. The restoration of functions after the termination of exposure to stress was not achieved. Epiphytic bacterial communities actively responded both to the introduction of a toxicant and to the changing physiological parameters of algae by the change in the numbers of cultured heterotrophic bacteria. The results of this study showed that the concentration of petroleum products in the water decreased to values not exceeding MPC in the presence of algae in the environment.

Development of a certified reference material intended to control measurement results accuracy of petroleum products in water and its application for proficiency testing of laboratories through interlaboratory comparative tests

The article considers the notion of oil content as a measurable indicator and provides information on the procedures for measuring the content of petroleum products by IR spectrometry in natural water, drinking water, and treated wastewater. Certified reference materials (CRMs) for petroleum products with certified characteristics of the mass or mass concentration of petroleum products in the matrix were registered in the system of metrological support of measurements. The content of polar petroleum products in the raw material was not taken into account when establishing the certified values of these CRMs; this leads to a significant difference between a certified characteristic of CRMs and the determined indicator of measurement procedures based on the IR spectrometry method. In contrast to CRMs with a certified characteristic in the form of the total content of petroleum products, there was a need to develop CRM for determining the mass concentration of only non-polar and low-polar petroleum products by the IR spectrometry method.Information about the stages of CRM development is presented: selection and preparation of material, investigation of material stability. The results of CRM certification for certified indicators in the range of 0.05–2.00 mg/dm3 are presented. The correctness of these results was confirmed in accredited laboratories by interlaboratory comparative tests.The CRM of mass concentration of non-polar petroleum products in a polar organic solvent GSO 11733–2021 was approved. The metrological characteristics of the CRM were established: the range of permissible certified values is 0.1–3.0 mg/cm3, the permissible relative expanded uncertainty of the certified value for k=2 5 %. The traceability to SI units of the certified CRM value is insured.It has been confirmed that the developed GSO 11733–2021 is intended to control the accuracy of the measurement results of the mass concentration of non-polar petroleum products in drinking water, natural surface water, and treated wastewater using IR spectrometry and can be used for attestation of procedures for measuring the mass concentration of non-polar petroleum products in water by IR spectrometry. The scope of the CRM is environmental protection, quality control of drinking water, natural surface water, and treated wastewater.

Development of one- and dicotyledic plants on reclaimed oil-contaminated alluvial turf soils

Laboratory chronic experiments have determined the effect of the content of petroleum products (PP) in reclaimed alluvial turf heavy loamy and light loamy soil on the growth, yield of green mass and the development of the root system of spring wheat and seed peas. High residual PP content in reclaimed soil resulted in increased seed germination time, with no effect on germination. When growing wheat on reclaimed alluvial turf heavy loamy soil, the toxic effect was manifested only in the early stages of plant development in a variant containing 16.9 g/kg of PP. In the alluvial turf light loamy soil version containing 21.8 g/kg of pollutant, inhibition of plant growth was observed throughout the experiment. In chronic experiments for growing peas on heavy coal soil containing 16.9 g/kg of PP, on light coal soil containing 11.7 g/kg and higher, plant growth inhibition was observed, with a tendency to increase the toxic effect towards the end of the growing experience. Oil contaminants in concentration up to 11-12 g/kg in reclaimed alluvial turf heavy and light-coal soils do not affect the yield of green wheat mass, in concentration 9.7 g/kg and higher inhibit the growth of pea plants, lead to a decrease in the yield of their green mass. The oxidation efficiency of petroleum products when growing plants on reclaimed alluvial turf soil did not exceed 37% and was determined by the initial concentration of pollutant. The presence of PP in the soil led to a change in the structure of the root system of the plants being grown. Tested plants when cultivated on heavy soils are more resistant to negative PP. The findings show that sown peas are more sensitive to the presence of PP in reclaimed soil.

ОЦІНКА ЯКОСТІ ПИТНИХ ВОД З РІЗНИХ ДЖЕРЕЛ ВОДОПОСТАЧАННЯ

Purpose. Monitor different sources of water supply in a particular region of Ukraine. Methodogy. To monitor the drinking water of the selected settlement of Cherkasy region, water from the water supply network (10 samples), water from the pump room (1 sample) and water from wells (26 samples) were selected and analyzed for 20 main chemical indicators in accordance with the requirements of DSanPiN 2.2.4-171-10 and DSTU 7525: 2014. Findings. It was found that tap water has a slight excess of iron and turbidity in 5 samples. The water does not contain aluminum, ammonium ions, nitrates, nitrites, residual amounts of free and bound chlorine and chlorination by-products. The sample of water from the pump room has a slight excess of silicon and salts of general hardness – calcium and magnesium ions. Water from the pump room in chemical composition (pH, dry matter, alkalinity, chlorides, sulfates, sodium) and the content of microcomponents is very similar to tap water, it has a slightly higher "color" and "turbidity", but the content of petroleum products and iron does not exceed drinking standards. water – 0.1 mg / dm3 and 0.2 mg / dm3, respectively. In this case, well water is the most unsuitable for drinking purposes. It was found that the largest excess of normalized values in these waters was observed when determining the dry residue (up to 4 standards), hardness (up to 5 standards), nitrate concentration (up to 9 standards).Originality. Monitoring of drinking water in the selected settlement of Cherkasy region and the analysis of the suitability of tap water, pump room water and well water for drinking needs.Practical value. The peculiarities of the chemical composition of drinking water supply facilities of this settlement have been established, in particular, much attention is paid to the determination of microelements and persistent organic toxicants at the level of their maximum permissible concentrations. The analysis of the obtained results testifies that the quality of tap water and pump room meets the current hygienic standards in terms of organoleptic parameters, general mineralization, hardness, alkalinity, content of organic components, and water in almost all wells does not meet.