Heavy metals in the small rivers of Ternopil region under different types of anthropogenic pressure

Prokopchuk, O.; Грубінко, В. В.

doi:10.15421/011621

Cited by 8 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In fact, no correlation between the detected Mn and Fe contamination of water bodies and the environmental load was observed in 38 because both recreation lands and lands transformed by a high anthropogenic impact demonstrate similar levels of the pollution coefficients. In addition to anthropogenic factors, the excess in Mn and Fe concentration in river water is caused by the occurrence of these elements in abiotic components of river valleys, particularly in areas with iron and manganese, alluvial deposits, clay soils with ferrous metal compounds and leaching of elements from rock, soil and forest litter 38 .…”

Section: Volatility Of Chemical Composition Of Plantsmentioning

confidence: 96%

“…As follows from Table 2, the medicinal plants of producer 3 collected in Ternopil region are characterised by significantly higher Mn and Cd contents compared to plants collected in other areas. The content and dynamics of seasonal migration of heavy metals, including Mn, Fe, Co, Pb, and Zn, have been recently analysed in small rivers of Ternopil region 38 . The territory of Ternopil region was divided into 4 parts, namely agricultural (AL), urbanised (UL), recreation lands (RL), and lands transformed by a high anthropogenic impact (TL).…”

Section: Volatility Of Chemical Composition Of Plantsmentioning

confidence: 99%

See 1 more Smart Citation

Essential and Toxic Microelements in the Medicinal Remedy Hyperichi herba by Different Producers

Derkach¹,

Khomenko²

2018

Rese. Jour. of Pharm. and Technol.

View full text Add to dashboard Cite

The elemental composition of herbal remedy, Hyperichi herba, grown in different regions of Ukraine and supplied by three different producers, was studied by flame atomic absorption spectroscopy. The concentrations of essential microelements Fe, Cu, Mn and Zn, as well as toxic metals Pb, Cd, Cr and Co were determined and compared with the available literature data. The significant difference between samples from different producers is observed for Mn, Co, and Cd. The higher the Fe content, the lower Mn and Zn concentrations are detected in individual samples. The concentration of Cu is rather stable. Cadmium is detected in samples of one producer only while in others it is below the detection limit. Relatively small concentrations of Pb are detected in all samples. Chromium is below the detection limit in all studied plants. The elemental composition of plants collected by one producer is characterised by higher Mn and Cd concentrations compared to other samples. The observed Mn enrichment correlates well with an increased content of this element in regional rivers which is virtually independent of an anthropogenic impact on the environment. The principal component analysis was used to minimise the number of variables. Three principal components composed of the concentrations of all essential and some non-essential microelements are sufficient to explain 91% of the total variance.

show abstract

Section: Volatility Of Chemical Composition Of Plantsmentioning

confidence: 96%

Section: Volatility Of Chemical Composition Of Plantsmentioning

confidence: 99%

Essential and Toxic Microelements in the Medicinal Remedy Hyperichi herba by Different Producers

Derkach¹,

Khomenko²

2018

Rese. Jour. of Pharm. and Technol.

View full text Add to dashboard Cite

show abstract

“…They mostly remain in the environment. Therefore, it is not surprising that these metals are among the primary contaminants of soil and water in Ukraine [25][26][27][28].…”

Section: Variability Of the Composition Of Medicinal Plantsmentioning

confidence: 99%

“…Such results allow us to study the cumulative effect of local diversity of plant species within one botanical genus [23,24] and also the impact on the environment [25,26]. For example, pollution by heavy metals of small Ukrainian rivers was studied in [27,28] from the viewpoint of polluted waters influence on the local plant growth.…”

Section: Introductionmentioning

confidence: 99%

Chemistry of medicinal plants as an integral part of ecological education

Derkach

Tarasenko

2021

E3S Web Conf.

View full text Add to dashboard Cite

The degree of variability in the composition of herbal medicines was studied on the example of the preparation of St. John's wort from various Ukrainian producers. The Cu and Zn contents were the most stable compared to other (Fe, Mn, Co, Cr, Ni, Pb, Cd) microelements among plants of different origins. The content of toxic elements (Pb, Cd) did not exceed the established standards. Meanwhile, a 2-3-fold concentration difference was observed for hyperforin, an active pharmaceutical ingredient in St. John’s wort. Thus, the existing standards do not ensure the stability of the composition of herbal preparations. As a result, the quality of medicinal drugs can be significantly different. The key reason for the variation in plant composition is environmental influence, including anthropogenic factors. Existing training programs for prospective specialists of the pharmaceutical industry do not pay enough attention to the impact of the environment on the quality of herbal raw materials. Necessary changes to the syllabi of relevant disciplines are formulated to eliminate this shortcoming and ensure sustainable development of raw materials sources for the pharmaceutical industry.

show abstract

“…Біологічна небезпечність металів визначається також тим, що вони зазнають модулювального впливу температури, рН середовища, вмісту кисню, присутності хелатувальних агентів та низки інших чинників (Grubinko et al, 2011). Одночасно сполуки важких металів відіграють важливу роль у життєдіяльності всіх організмів, оскільки у невеликих кількостях проявляють високу фізіологічну активність та виконують роль активаторів біохімічних та фізіологічних процесів (Elkady et al, 2015;Bukar et al, 2016;Prokopchuk and Grubinko, 2016). Збільшення їх природних концентрацій зумовлює токсичний вплив на живі організми (Bruins et al, 2000;Dragun et al, 2009).…”

Section: рівненський державний гуманітарний університет рівне українаunclassified

Seasonal variations in the level of heavy metals in the water of minor rivers

Суходольська

2017

Biosys. divers.

View full text Add to dashboard Cite

This article analyses the level of heavy metals (Zn, Mn, Fe, Pb, Co, Ni, Cd) and characteristics of their transportation through the water of minor rivers in Rivne region, Ukraine. The levels of Zn, Cu, Mn, Fe, Ni, Co in the waters of these fisheries exceeded the maximum permissible concentration limit in different months. We found that the concentration of Pb and Cd did not exceed the permissible concentration limit in the waters of the fisheries during the year of research, while the level of other metals exceeded the permissible levels by 1.1 to 151.0 times. This research confirms that the surface waters of Rivne region are characterized by high concentrations of iron, manganese, zinc, and nickel. The level of iron exceeded the maximum permissible concentration limit by 1.1 to 5.0 times, the level of zinc by 1.5 to 15.0 times, that of manganese by1.3 to 6.7 times and the nickel level by 1.3 to 151.0 times in the fishery waters. In principle, the increase in the level of heavy metals (Zn, Cu, Mn, Fe, Ni, Co) is connected with the lithological composition of reservoirs in the water-collecting areas of the investigated rivers, and besides with the significant influence of the anthropogenic load (fuel combustion, aqueous wastes of factory units, agricultural effluent, etc.), and with the increase in aquatic vegetation, pH balance, temperature change and so on. The appearance of iron-manganese compounds can be explained by natural causes such as reformation of the source minerals into secondary minerals in the conditions of pH level recession in water, which causes the release of these molecular entities; leaching of iron from the iron-manganese septarian nodules, a substantial amount of which is contained in the illuvial horizon. The increase in the level of zinc and nickel in the river water is connected with the leaching of these elements from subsurface rocks, soil and forest leaf litter. Atmospheric condensation is a significant source of the presence of nickel in the surface water. For the investigated rivers, the most significant factors in the water's chemical composition are physiographic (foremost, the character of the soil cover, intensivity of erosion, extent of forest and swamp cover) and anthropogenous impact. In the rivers of Rivne region high concentrations of heavy metals are the consequence of the long-term aggradation of abiotic and biotic substances of the water ecosystem. There is a tendency for a reduction in the concentration of most metals in the abiotic substances of the water reservoir during the vegetative season and an increase after the end of this season. This research shows that the high level of contamination of the water of Rivne region's minor rivers by the investigated heavy metal components is caused primarily by anthropogenic factors.

show abstract

Heavy metals in the small rivers of Ternopil region under different types of anthropogenic pressure

Cited by 8 publications

References 8 publications

Essential and Toxic Microelements in the Medicinal Remedy Hyperichi herba by Different Producers

Essential and Toxic Microelements in the Medicinal Remedy Hyperichi herba by Different Producers

Chemistry of medicinal plants as an integral part of ecological education

Seasonal variations in the level of heavy metals in the water of minor rivers

Contact Info

Product

Resources

About