scholarly journals Ecological and geochemical features of the landscapes of the Baikal State Natural Biosphere Reserve

2021 ◽  
Vol 885 (1) ◽  
pp. 012049
Author(s):  
E Yu Elsukova ◽  
I Yu Arestova ◽  
E O Chunyaeva ◽  
E O Mordovskoy
Keyword(s):  
Heavy Metals ◽  
Plant Communities ◽  
Biosphere Reserve ◽  
Pinus Sibirica ◽  
Ecological State ◽  
Mobile Forms ◽  
Microelement Composition ◽  
Maximum Allowable Concentrations ◽  
Geochemical Assessment

Abstract The aim of the study is a comprehensive assessment of the state of natural-territorial complexes of the Baikal State Natural Biosphere Reserve, including an ecological and geochemical assessment of soils, analysis of plant communities, determination of the ecological and biogeochemical features of the vegetation of the area. The distribution of mobile forms of heavy metals in the soils of the Baikal Biosphere Reserve has been studied. The coefficient of total soil pollution has been calculated. The maximum allowable concentrations exceedances for Cr, Mn, Cu and Pb were registered. Analysis of the microelement composition of the crust of Pinus sibirica showed the accumulation of Cd and Ni in relation to the Dobrovolsky clarke in all the studied areas of the reserve. Based on the studies carried out, it can be recommended to monitor the ecological state of natural territorial complexes on a regular basis on the territory of the Baikal State Biosphere Reserve.

scholarly journals Monitoring of technogenic soil pollution in manufacture

2021 ◽  
Author(s):  
B.E. Gubasheva ◽  
M.A. Khassenova ◽  
E.K. Akkereyeva
Keyword(s):  
Heavy Metals ◽  
Soil Cover ◽  
Humus Content ◽  
Gas Processing ◽  
Mobile Forms ◽  
West Kazakhstan ◽  
A Chain ◽  
Ph Level ◽  
The City

The growth of production zones in the city of Aksai in the West Kazakhstan region leads to contamination of the soil cover, which, in turn, causes a chain reaction of pollution. Due to soil contamination, soil moisture and the underground surface are polluted. As a result, the processes in the soil change, the vital activity of plants, animals and microorganisms are disrupted. The article presents data on the study of changes in soil cover under the influence of human activity. The results of the conducted studies on the determination of the humus content and pH level, the content of heavy metals in technogenically disturbed soils in the adjacent territory of the natural gas processing enterprise are presented. The obtained data on the gross content and mobile forms of heavy metals indicates that the maximum permissible concentration level for these pollutants is not exceeded.

scholarly journals Accumulation of heavy metals in soil and litter of roadside plantations in Western Polissia of Ukraine

2021 ◽  
Vol 63 (3) ◽  
pp. 232-242
Author(s):  
Serhii Maksimtsev ◽  
Serhii Dudarets ◽  
Vasyl Yukhnovskyi
Keyword(s):  
Heavy Metals ◽  
Species Composition ◽  
Ammonium Acetate ◽  
Absorption Spectrometry ◽  
Forest Litter ◽  
Acer Platanoides ◽  
National Importance ◽  
Mobile Forms ◽  
Forest Belts ◽  
Maximum Allowable Concentrations

Abstract The article presents the results of a study on the influence of roadside forest belts of different species composition on the accumulation of heavy metals in soil and litter along roads of international and national importance in the conditions of Western Polissia of Ukraine. Mobile forms of Cd, Cu, Pb and Zn in soil and forest litter samples were determined in ammonium acetate extract buffer by atomic absorption spectrometry. The analysis of the content of heavy metals, their comparison with the maximum allowable concentrations depending on the composition of plantations and the category of the highway have been done. It is confirmed that roadside forest belts perform important functions in the accumulation of heavy metals in soil and forest litter. It is confirmed that roadside forest belts perform important functions in the accumulation of heavy metals in soil and forest litter. Among all the pollutants studied, the concentration of cadmium was the lowest and that of zinc the highest (especially in forest litter). Lead and copper in this indicator occupied an intermediate position. Despite the different species composition of plantations, the coefficient of concentration of heavy metals in the soil did not exceed the maximum allowable concentrations and was on average in the range of 0.10–0.20 of these indicators. The greatest effect of delaying the migration of heavy metals was observed in forest litter. Therefore, in order to effectively use the biological barrier along the roads, it is necessary to create linear protective belts of deciduous species with Acer platanoides, Betula pendula, Carpinus betulus and Tilia cordata, which give a rich annual litterfall.

The effects of silt fields of Bortnytska aeration station on ecological state of land and water in the adjacent areas

2021 ◽  
pp. 114-128
Author(s):  
M. V. Yatsiuk ◽  
A. M. Shevchenko ◽  
R. P. Bozhenko ◽  
S. M. Lyutnitsky
Keyword(s):  
Heavy Metals ◽  
Agricultural Land ◽  
Ecological State ◽  
Crop Failure ◽  
Maximum Permissible Concentrations ◽  
Mobile Forms ◽  
Exchangeable Magnesium ◽  
Agricultural Use ◽  
Almost All ◽  
The Impact

The article highlights the results of research on assessing the ecological state of the land near the silt fields №1 and №3 of Bortnytska aeration station in the Zolochiv village community of Boryspil district in Kyiv region. The presence of previously recorded increased content of heavy metals in soils compared to the background content, both in terms of their gross content and the content of mobile forms was confirmed within the certain areas near the silt fields. For the elements-pollutants (Zn, Cu, Cr, Pb) at some points within the agricultural land, exceeding the values ​​of their gross content and the content of mobile forms (Zn, Cu) of the maximum permissible concentrations was recorded at 1.1-6.2 and 1.1 -2.6 times, respectively. The average values ​​of heavy metals content for floodplains (settlement) and agricultural land near silt fields indicate their prevailing values ​​for the latter in almost all elements, as well as exceeding the background values ​​and maximum permissible concentrations for the land where silt deposits were previously applied as fertilizers. Within the surveyed areas, soils are classified as unsalted, but the increased content of exchangeable magnesium may adversely affect soil fertility. Increased mineralization and content of ammonium and nitrates in groundwater are observed near silt fields, which is obviously related to the impact of silt water and can lead to deterioration of groundwater quality in the area of ​​their transit and discharge, in particular within the village Gnidyn. The area of ​​land with an extremely dangerous pollution rate in terms of total heavy metal is about 300 hectares, with a dangerous pollution rate is 260 hectares, and the estimated damage from crop failure may be 1.65 million UAH/year and 0.3 million UAH/year respectively. Within the areas adjacent to the silt fields, the condition of soils, water resources, cultivated products and the health of the population should be constantly monitored, especially when using the polluted land for agricultural use or housing.

scholarly journals The content of heavy metals in the raw materials of some representatives of the genus Paeonia L. in an urbanized environment

2021 ◽  
Vol 16 (4) ◽  
pp. 337-352
Author(s):  
Antonina A. Reut ◽  
Svetlana G. Denisova
Keyword(s):  
Heavy Metals ◽  
Raw Materials ◽  
Point Of View ◽  
Raw Material ◽  
Mobile Forms ◽  
Soil Solutions ◽  
Quantitative Indicators ◽  
The City ◽  
Maximum Content

At present, heavy metals are generally recognized as priority soil pollutants, while the most active pollutants are their mobile forms, which can pass from solid phases into soil solutions and be absorbed by plants. It is known that the vegetative mass of agricultural crops is capable of accumulating large amounts of heavy metals. Ornamental flower crops, which firmly occupy their ecological niche, are practically not considered from this point of view. The aim of this work was to study the features of the accumulation of heavy metals in the aboveground and underground organs of some representatives of the genus Paeonia L. in the urbanized environment of the city of Ufa. The objects of research were four species ( P. peregrina Mill., P. lactiflora Pall., P. lactiflora f. rosea, P. delavayi Franch.) (Family Paeoniaceae Rudolphi) and three varieties of hybrid peony (Appassionata, Mustai Karim, Jeanne dArc). The study of the elemental composition of the aboveground and underground parts was carried out according to the method Determination of As, Pb, Cd, Sn, Cr, Cu, Fe, Mn and Ni in samples of food products and food raw materials by the atomic absorption method with electrothermal atomization. Mathematical data processing was carried out using generally accepted methods of variation statistics using the AgCStat software package in the form of an Excel add-in. Eight element studies are presented for each raw material group. Quantitative indicators of elements are given in mmol/kg of air-dry raw materials. It was revealed that in the studied samples the copper content was 4.152520.00 times higher than that of other elements. The minimum concentrations of arsenic (0.00350.0064 mmol/kg), chromium (0.00190.0046 mmol/ kg), manganese (0.01740.0219 mmol/ kg) and iron (0.00590.0125 mmol/ kg) were noted in the roots; lead (0.0030.037 mmol/kg), cadmium (0.00020.001 mmol/kg) and copper (0.14770.2134 mmol/kg) - in the leaves; nickel (0.00820.0179 mmol/kg) - in the flowers of the studied paeonies. The maximum content of arsenic (0.00620.0123 mmol/kg) and chromium (0.00280.0063 mmol/kg) was found in the leaves; lead (0.00270.0223 mmol/kg), nickel (0.01670.0209 mmol/kg), manganese (0.01730.0212 mmol/kg) and iron (0.00870.0138 mmol/kg) - in stems; cadmium (0.00020.0009 mmol/kg) and copper (0.1440.244 mmol/kg) - in flowers. Therefore, cutting paeonies in the autumn before retirement avoids the accumulation of these microelements in the soil. The results of the correlation analysis showed that the absolute values of the concentrations of the studied elements in the considered taxon of paeonies correlate with each other to a moderate and strong degree.

Determination of some heavy metals (Fe, Cu, Zn and Pb) in blood by total reflection X-ray fluorescence

2003 ◽  
Vol 107 ◽  
pp. 203-206 ◽  
Author(s):  
M. Bounakhla ◽  
A. Doukkali ◽  
K. Lalaoui ◽  
H. Aguenaou ◽  
N. Mokhtar ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Total Reflection ◽  
X Ray

Determination of selected heavy metals in tuna fish (Thunnus thynnus)

2013 ◽  
Vol 38 (03) ◽  
Author(s):  
S Mol ◽  
S Karakulak ◽  
S Ulusoy
Keyword(s):  
Heavy Metals ◽  
Thunnus Thynnus ◽  
Tuna Fish

ЭКОЛОГО-ГЕОХИМИЧЕСКОЕ РАЙОНИРОВАНИЕ ТЕРРИТОРИИГ. БИРОБИДЖАНА ПО УРОВНЮ ЗАГРЯЗНЕНИЯ СНЕЖНОГО ПОКРОВА

2019 ◽  
Author(s):  
V.B. Kalmanova
Keyword(s):  
Heavy Metals ◽  
Snow Cover ◽  
Urban Area ◽  
Constructive Method ◽  
Comparative Characteristic ◽  
Ecological State ◽  
Sources Of Pollution ◽  
Mobile Sources ◽  
Arcview Gis ◽  
Very High

В статье представлены результаты исследования экологогеохимического состояния снежного покрова как индикатора качества атмосферного воздуха г. Биробиджана. Выявлены основные природные и антропогенные факторы, предопределяющие экологическое состояние городской территории в зимний период (климатические, планировочная структура, стационарные и мобильные источники загрязнения). Определено, что выбросы основных загрязнителей во время отопительного сезона превышает летний в 6,5 раз. Проведены геохимические исследования снежного покрова на 60 экспериментальных площадках, заложенных в различных функциональных зонах города. Выявлено значительное превышение тяжелых металлов над фоновым уровнем: железа до 60, марганца до 50, меди до 40, цинка до 20, никеля до 12, свинца до 10, кобальта до 6 раз. С 2003 по 2018 годы содержание химических элементов в снеге увеличилось в 2 раза за счет мобильных источников загрязнения, ТЭЦ, котельных. Проведена сравнительная характеристика накопления тяжелых металлов в снеге за 2003 и 2018 годы и установлен ранжированный ряд загрязняющих токсичных веществ. Разработана шкала оценки загрязнения депонирующих сред по суммарному показателю концентрации тяжелых металлов, согласно которой в Биробиджане выявлено 5 уровней загрязнения снежного покрова. В целом экологическое состояние урбанизированной территории признано неудовлетворительным (8 площади территории относится к очень высокому, 14 к высокому, 21 к выше среднему, 27 к среднему уровням загрязнения, 30 к относительно чистым районам города). По полученным результатам разработана карта в программе ArcView GIS Экологогеохимическое районирование территории г. Биробиджана по уровню загрязнения снежного покрова с выделением наиболее загрязненных участков (70 от общей площади города является загрязненной). По результатам проведенных исследований предложены конструктивные методы планирования урбанизированной территории с целью улучшения ее экологического состояния: проведение геомониторинга (контроль загрязнения снежного покрова и своевременный его вывоз на специально оборудованные полигоны). Snow cover is taken as an indicator of air quality using Birobidzhan, a middlesize city in the Russian Far East, as a case study. The main natural and manmade determinants influencing the ecological state of the urban area in winter are identified: climate, a planning structure, and the stationary and mobile sources of pollution. During the heating season the emission of major pollutants exceeds the summer level by 6.5 times. The geochemical study of snow cover was performed at 60 experimental sites in different functional urban areas. A significant excess of heavy metals over the regional background level was revealed: iron up to 60 times, manganese up to 50, copper up to 40, zinc up to 20 , nickel up to 12, lead up to 10, cobalt up to 6 times. From 2003 to 2018 the content of chemical elements in snow increased in 2 times due to the mobile sources of pollution, thermal power plants, and boilers. The comparative characteristic of accumulation of heavy metals in snow for 2003 and 2018 is carried out, and the ranked number of polluting toxic substances is established. The scale of pollution assessment in depositing environments was developed using the cumulative indicator of heavy metal concentration. Five levels of snow cover pollution are found in Birobidzhan: low, moderate, above moderate, high and very high. As a whole, the ecological state of the urban area is considered as unsatisfactory (8 of the area with a very high level of pollution, 14 with high, 21 above moderate, 27 a moderate level of pollution, 30 a relatively clean area). According to the results, a map was developed in the ArcView GIS program Ecological and geochemical zoning of Birobidzhan, using the level of the snow cover pollution with the allocation of the most polluted areas (70 of the total area of the city is polluted). According to the results, a constructive method of planning in an urban area is proposed in order to improve its environmental condition: geomonitoring as a control of pollution in snow cover and its prompt removal to specially equipped landfills.

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