Peculiarities of Recultivating the Ash Dump of Power Station-1 in the City of Khabarovsk

2014 ◽  
Vol 1051 ◽  
pp. 444-447
Author(s):  
A.A. Suprunova ◽  
L.T. Krupskaya ◽  
T.G. Borzenkova
Keyword(s):  
Heavy Metals ◽  
Chemical Elements ◽  
Research Work ◽  
Climatic Conditions ◽  
High Concentration ◽  
Power Station ◽  
Migration Intensity ◽  
Strong Winds ◽  
High Level ◽  
The City

The article presents the results of the research work on the peculiarities of recultivation of the ash dumps of power station No1 (PS1) in the city of Khabarovsk. The research showed that the climatic conditions of the region promote the dust dispersal of toxic agents from the surface of the ash dump. The pollution of the air basin here can be attributed to the extremely high level of pollution (EHP), the priority pollutant is the dust containing heightened concentrations of heavy metals (Pb, Mn, Cu, Cr, Co, Ni, Cd). As a result it leads to the deterioration of the population’s health, especially to the high level of respiratory organs diseases. The research of the sprouting of the herbaceous plants (mixture of timothy-grass, clover and mustard) on prepared model soils showed their healthy growth. The ash chemical composition was studied. It showed high concentration of toxic chemical elements (Hg, Be, Sr, Cd, V, Th, 40K, Cr, Mb, AS, Sb,Se, Te, Pb, Ni, Co). The migration intensity of heavy metals ions into the plants was analyzed. On the basis of the experimental research the optimum composition of the substrate was revealed and recommended for recultivating the ash dump of PS1, namely: soil+sand+ash. Climatic conditions of the Khabarovsk Krai do not permit to recommend the sand+ash substrate for recultivation because of strong winds.

A PROMISING ASSORTMENT OF TREES AND SHRUBS FOR LANDSCAPING IN VOLGOGRAD CITY

2021 ◽  
pp. 5-18
Author(s):  
E.N. Tyukhtina ◽  
Keyword(s):  
Negative Impact ◽  
Ornamental Plants ◽  
Botanical Garden ◽  
Climatic Conditions ◽  
Green Spaces ◽  
Ecological Situation ◽  
High Concentration ◽  
High Level ◽  
The City ◽  
Trees And Shrubs

The article deals with one of the most relevant topics of the modern city and ecology - the problem of landscaping in Volgograd. The city is characterized by an industrial urbanism, with a high concentration of population, saturation of production facilities and vehicles, which contributes to a high level of negative impact on the environment. The pace of greening of the city lags behind the pace of construction of the residential sector, and the existing green spaces do not meet the sanitary and hygienic, aesthetic requirements. The prospects of this problem are determined, the existing green spaces are considered, data on the climatic conditions of the city and the ecological situation are given. Improvement in the field of landscaping is associated with the scientifically sound placement of green spaces, taking into account all the factors that affect the growth and development of plants in the urban environment. Unfortunately, due to the uneven distribution of the assortment of trees and shrubs, the species composition of the central streets and squares of the city is extremely poor. The study focuses on the role of the botanical garden in urban landscaping and aims to create recommendations for the sorting of tree and shrub plants for urban landscaping. As a result of the analysis of the assortment of ornamental plants of the open ground of the botanical garden, the article proposed species and varieties of woody and shrubby plants that have passed the introduction tests for more than 5-10 years. Recommendations for sorting are aimed at improving the ecological situation of the city and greening the recreation areas of citizens. The proposed list of tree and shrub species cannot fully solve the problem of greening the city, but it will help to significantly enrich the composition of tree and shrub plants.

scholarly journals STUDY OF THE CONTENT OF CERTAIN HEAVY METALS IN THE SOFT TISSUE OF THE (VIVIPARUS VIVIPARUS L.) THAT INHABITATES THE RIVER OF SOZH IN GOMEL

2021 ◽  
Vol 0 (1) ◽  
pp. 29-39
Author(s):  
Тatiana V. Makarenko ◽  
◽  
Ilya V. Hryshchanka ◽  
Andrei I. Makarenko ◽  
Alexander N. Nikitin ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Surface Runoff ◽  
Aquatic Ecosystems ◽  
Soft Tissues ◽  
Anthropogenic Load ◽  
Residential Areas ◽  
High Concentration ◽  
Viviparus Viviparus ◽  
High Level ◽  
The City

The soft tissues of molluscs are the components that make it possible to establish the degree of influence of the urban agglomeration on the pollution of the components of the aquatic ecosystem, which do not have a visible anthropogenic load, with compounds of heavy metals. The content of the heavy metals under investigations (except for nickel) decreased in comparison with the data obtained in 2002, which indicates a decrease in anthropogenic load on the aquatic ecosystems of the Sozh. The high content of copper, cobalt and nickel before the city’s wastewater is received confirms the influx of pollutants with the surface runoff of agro-residential areas and settlements located upstream of the city along the river. Unidirectional decrease in copper concentration downstream of the Sozh testifies to the course of ecosystem self-cleaning processes. Confirmation of these processes is a significant decrease in the content of lead and chromium in the area outside the city, in comparison with the section of the river within the city limits. The abnormally high concentration of lead and chromium in the soft tissues of Viviparus viviparus L. in the river section within the city limits, nickel and cobalt below the city limits, indicates the flow of metals into the river with the surface runoff of the city. The high level of metal content in the old complex shows the need to conduct a study on the content of pollutants in aquatic ecosystems that do not have a visible anthropogenic load, but are used by the population for recreational purposes.

scholarly journals Perculiarities of introduction of Araliaceae Juss. in botanical gardens (Kyiv, Ukraine)

2018 ◽  
Vol 29 (2) ◽  
Author(s):  
A. P. Morozko ◽  
O. Y. Leshchenko ◽  
O. V. Kolesnichenko ◽  
Y. V. Lykholat ◽  
M. Zemnianska ◽  
...  
Keyword(s):  
Introduced Species ◽  
Climatic Conditions ◽  
Comprehensive Assessment ◽  
Good Prospect ◽  
Botanical Gardens ◽  
Introduced Plants ◽  
Local Soil ◽  
Open Ground ◽  
High Level ◽  
The City

The results of physiological, morphological, anatomical peculiarities of introduced plants of Araliaceae Juss. have been given. Study of seasonal growth and development peculiarities of Araliaceae Juss.  showed that most of these plants were introduced successfully but the process was complicated by climatic conditions of the area in city Kiev. According to a comprehensive assessment a large number of studied species were highly evaluated for decorative effect. Introduced species of family Araliaceae Juss. are characterized by high-level adaptation to local soil and climatic conditions in Botanical gardens of Kiev. The vast majority of them bloom but not all can form seeds. Thus, among the introduced plants only five representatives of genus Acanthopanax – Acanthopanax lasiogyne, Acanthopanax divaricatus, Acanthopanax sieboldianus, Acanthopanax trifoliatus and Acanthopanax wardii have high level of adaptation. To determine the prospect of cultivating research species we assessed the degree of winter resistance by the 5-point M. K. Vechova scale on the basis of visual observations in conditions of the open ground. The level of adaptation of plants was evaluated in the city Kyiv using the estimation scale measured in points and in percentages. Results of researches showed that the species have a high resistance to the effects of adverse factors. All types of this family are promising for introduction into culture and can be widely used in various branches of the national economy.  A comprehensive assessment of the decorative effect of ornamental plant species was carried out by the O. G. Horoshyh and O. V. Horoshyh scales, according to which the decorative effect of the vast majority of studied species was highly appreciated. The results of our study shows that the introduced species of Araliaceae Juss. have a good prospect for further their use in ornamental gardening, urban greening and landscape design in private territories of citizens.

scholarly journals Determination of the Level of Snow Cover Pollution with Heavy Metals within the City of Kovrov Boundaries

2014 ◽  
pp. 69-76
Author(s):  
Keyword(s):  
Heavy Metals ◽  
Snow Cover ◽  
Chemical Elements ◽  
Iron Accumulation ◽  
Winter Period ◽  
Vladimir Oblast ◽  
The City

The paper presents the outcomes of the investigation of heavy metals and iron accumulation in the Kovrov (Vladimir Oblast) snow cover. On the basis of snowmelt waters’ analysis a calculation of the chemical elements input into snow cover over the winter period has been carried out.

GEOECOLOGICAL ASSESSMENT OF THE MODERN ZINC CONTENT IN THE SOIL COVER OF THE URBANIZED TERRITORIES OF THE SOUTH OF RUSSIA

2021 ◽  
Vol 82 (3) ◽  
pp. 115-120
Author(s):  
SINTSOV ALEXANDER V. ◽  
◽  
BARMIN ALEXANDER N. ◽  
ZIMOVETS PETR A. ◽  
VALOV MICHAIL V. ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Maximum Permissible Concentration ◽  
Soil Cover ◽  
Chemical Elements ◽  
Zinc Content ◽  
Soil Samples ◽  
The Body ◽  
Urbanized Area ◽  
The Impact ◽  
The City

Anthropogenic and technogenic processes in the urban environment significantly change the chemical composition of the soil cover. One of such processes influencing the state of the urban soil is the process of soil cover pollution with heavy metals. Heavy metals are biochemically active and highly toxic; they are found in various components of the natural environment, as well as in systems of anthropogenic and technogenic origin. They have the property of accumulation in the body of living beings and have a negative effect on their condition. This group of chemical elements includes lead, zinc, chromium, mercury, copper, iron and other metals. Exceeding the permissible concentration of heavy metals in the soil of an urbanized area and their toxic effects pose a significant danger to humans. Contamination of the soil cover of an urbanized area with heavy metals is associated with the impact of a large number of sources of anthropogenic and technogenic origin, namely, energy and industrial facilities, city infrastructure support systems, zones of construction activities and storage of materials or waste. One of the main highly toxic chemical pollutants of the soil cover of the urbanized territory belonging to the group of heavy metals is zinc «Zincum-Zn». The article describes the results of a 2020 study of the current zinc content in the soil cover of the city of Astrakhan. The relevance of the work lies in the geochemical analysis of the content of heavy metals in the soil of the city of Astrakhan. The aim of the work was to study the modern process of soil contamination of the city of Astrakhan with zinc. The work was based on the task of determining the degree of exceeding the hygienic standards of the maximum permissible concentration of zinc in soil samples. Methods of geographical and ecological research were used in the work, soil samples were collected, followed by determination of the concentration of a substance in each of the soil samples in a certified laboratory. In the course of the work, the indicators of exceeding the maximum permissible concentration of zinc in the soil of the city of Astrakhan were determined and the presumptive sources of pollution were identified.

scholarly journals Assessment of Pollution Trend of Oke Afa Canal Lagos, Nigeria

2010 ◽  
Vol 7 (2) ◽  
pp. 605-611 ◽  
Author(s):  
R. A. Olowu ◽  
O. O. Ayejuyo ◽  
G. O. Adewuyi ◽  
I. A. Adejoro ◽  
T. A. Akinbola ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Water Body ◽  
Organic Load ◽  
High Concentration ◽  
Canal Water ◽  
Physiochemical Properties ◽  
Permissible Level ◽  
High Level ◽  
Very High ◽  
Significant Concentration

The physiochemical properties of Oke Afa water body were investigated. The parameters were compared with established international standard (APCELS). The canal water contained very high concentration of BOD (64.8±11.3 mg/L) and COD (107.8±22.3 mg/L) which would suggest the presence of a high level of organic load that result in the pollution of the canals. Significant concentration of TSS ranging from (92±100 mg/L), SO42-(9.84±5.59 mg/L), PO43-(0.66±0.33 mg/L), Cl (37±2.84 mg/L), NO3-(2.63±0.6 mg/L) and DO (0.96±0.15 mg/L) were observed. Low concentration of zinc and copper were observed except lead that has a higher concentration above the allowed permissible level at a point B of the sampling sites. Some heavy metals were not detected at all in all the sampled points of the canal. The pH and temperature were fairly constant and the values of conductivity reveal a slight decline in the ability of the water to conduct electricity down the canal. All the detected parameters fell within limits except Lead.

scholarly journals High Concentration of Heavy Metal and Metalloid Levels in Edible Campomanesia adamantium Pulp from Anthropic Areas

2021 ◽  
Vol 18 (11) ◽  
pp. 5503
Author(s):  
David Johane Machate ◽  
Elaine S. de Pádua Melo ◽  
Daniela G. Arakaki ◽  
Rita de Cássia Avellaneda Guimarães ◽  
Priscila Aiko Hiane ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Health Risks ◽  
Chemical Elements ◽  
Hazard Quotient ◽  
Icp Oes ◽  
High Concentration ◽  
Microwave Assisted ◽  
Total Cancer ◽  
Metals And Metalloid

This study aimed to quantify the extent of heavy metal, non-metal and metalloid levels in the Campomanesia adamantium pulp obtained from an area crossed by road experiencing high large vehicle traffic and intensive agriculture modern farming, to monitor the health risks associated with pulp consumption by humans. For this purpose, in three spots located within this area, ripe fruits were collected on the roadside, bush and farm-margin. Pulp samples were digested by microwave-assisted equipment, and chemical elements were quantified by ICP OES. The concentrations of K, Pb, Se, Fe, Mo, Zn, Co, Ni and Mn in the pulp collected in roadside/bush points showed statistical differences (p < 0.05). The heavy metals and metalloid concentrations that exceeded FAO/WHO standards were ordered Pb > As > Mo > Co > Ni > Mn > Cr. Therefore, among these metalloid and heavy metals, As, Pb and Cr were found to be higher in farm-margin > roadside > bush (1.5 × 10−3, 1.1 × 10−3 and 6.2 × 10−4), respectively. Therefore, As is the most important metalloid with higher levels in farm-margin, roadside and bush (1.5 × 10−3, 1.0 × 10−3 and 6.0 × 10−4 > 10−6–10−4 and 3.33, 2.30 and 1.34 > 1), respectively, to total cancer risk and hazard quotient, if 10 g daily of pulp are consumed.

scholarly journals Protecting Children’S Health Against Environmental Exposure to Heavy Metals – Theory Versus Practice

2018 ◽  
Vol 29 (1) ◽  
pp. 16-20
Author(s):  
Klaudia Gut ◽  
Małgorzata Bołdys-Labocha ◽  
Agata Piekut
Keyword(s):  
Heavy Metals ◽  
Significant Risk ◽  
Normative Values ◽  
High Concentration ◽  
Medical Problems ◽  
Limit Values ◽  
Lead And Zinc ◽  
Theory Versus ◽  
Cadmium Lead ◽  
High Level

Abstract The high level of heavy metals is one of the main indicators of soil contamination, which is a significant risk to ecological and health safety. Lack of regulations requiring the examination of the level of contamination in the areas where recreational facilities for children are located directly translate into the lack of preventive or corrective actions and leads to the persistence of a permanent threat connected with a high level of heavy metals concentration in soils. The aim of the study was to identify significant sources of exposure of children to heavy metals depending on the location of recreational areas (sports fields). The results show a high concentration of cadmium, lead and zinc in the analysed soils. Of all samples, more than 70% of them have values exceeding the limit values of cadmium in soils. In the case of lead and zinc, the normative values were exceeded, respectively, in 44% and 64% of soil samples. Practical solutions introduced in the framework of regulations related to environmental protection do not correlate in practice with an extensive obligation to protect the health of children and adolescents, whose performance is clearly focused on medical problems, disregarding the risk resulting from environmental factors.

scholarly journals Characterization of Sasar and Firiza Rivers Water Quality on Specific Toxic Pollutants Regime ( metals)

2012 ◽  
Vol 69 (2) ◽  
Author(s):  
Oana MARE ROȘCA ◽  
Lucia MIHALESCU ◽  
Zorica VOSGAN ◽  
Monica MARIAN ◽  
Anca DUMUTA ◽  
...  
Keyword(s):  
Public Health ◽  
Heavy Metals ◽  
Water Quality ◽  
Industrial Area ◽  
Toxic Pollutants ◽  
Baia Mare ◽  
Zinc Cadmium ◽  
High Level ◽  
The City

The Sasar River basin covers an area of 311 sq.km and it is situated in NW Romania. The investigated area is included, mainly, in the industrial area of the city of Baia Mare, an ar ea with ancient traditions related to the exploitation of non-ferrous ores. Therefore, the mining exploitation activities have created pressing conditions on the environmental and public health of the analyzed area.The dynamic indicators of water quality on specific toxic pollutants  ( metals )  for the period 19982007 were analyzed in three sections located upstream and downstream from the industrial centers of Baia Sprie and Baia Mare.The analyses of the dynamics of heavy metals in the waters of the Sasar River have found that, the main issues are high Pb and Cu indicators for the upstream section of Baia Sprie; as for the section downstream of Baia Mare, the Zn, Cd and Mn indicators are found in such concentrations that their values determine a high level of toxicity for the monitoring section.There is a clear reduction trend in specific toxic pollutants for the upstream section of Baia Sprie. Special problems continue to be reported for zinc, cadmium, manganese and lead, for the sections downstream of Baia Mare and upstream from the confluence of the Sasar and Firiza Rivers.

scholarly journals Antioxidant Defense System Alternations in Four Crab Species as a Bio-Indicator of Environmental Contamination

2019 ◽  
Vol 76 (1) ◽  
pp. 73
Author(s):  
Aderonke Omolara LAWAL-ARE ◽  
Rasheed Olatunji MORUF ◽  
Sarah Oyeyinka OLUSEYE-ARE ◽  
Tajudeen Opeyemi ISOLA
Keyword(s):  
Heavy Metals ◽  
Defense Mechanism ◽  
Heavy Metal Concentration ◽  
Antioxidant Defense System ◽  
Pollution Indices ◽  
Crab Species ◽  
High Concentration ◽  
Lagos Lagoon ◽  
Anti Oxidant ◽  
High Level

The ecological health status of aquatic environment is a determinant for the survival and growth of organisms within such niche. An investigative study was carried out on four crab species – Cardiosoma armatum, Goniopsis pelli, Callinectes amnicola, Portunus validusinhabiting contaminated sites in Lagos Lagoon- exploring their anti-oxidant defense mechanism in the light of heavy metal concentration in the crab tissues. Amongst the measured heavy metals, cadmium level proved to be significantly highest (P<0.05) with range concentration of 0.42±0.12mg/kg (G. pelli)- 0.79±0.06 mg/kg (C. armatum). Contrastingly, lead was marginally low with concentration below 0.01 mg/kg in all the crab species. Organismal responses to environmental pollution showed a high level of biomarkers. C. armatum was observed to have elevated level of superoxide dismutase (123.04±0.01min/mg/pro), catalase (7.74±0.05min/mg/pro), glutathion transferase (18.21±0.02 Hmol/mg pro), reduced glutathione (2.92±0.04Hmol/mg pro) and glutathione peroxidase (61.85±0.06 Hmol/mg pro) above other species with C. amnicola recording the lowest concentration of the biomarkers. With the low level of heavy metals and corresponding high concentration of these biomarkers, the pollution indices within the study habitat are quite modest.

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