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.

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 Seasonal dynamics of cadmium and plumbum in the Turia and Pripyat rivers

2020 ◽  
pp. 540-546
Author(s):  
Halyna Humeniuk ◽  
Olena Voloshyn ◽  
Volodymyr Voloshyn
Keyword(s):  
Heavy Metals ◽  
Surface Waters ◽  
Seasonal Dynamics ◽  
Aquatic Ecosystems ◽  
Quantitative Composition ◽  
Anthropogenic Pressure ◽  
Qualitative Composition ◽  
Significant Excess ◽  
Qualitative And Quantitative ◽  
High Level

The anthropogenic pressure on aquatic ecosystems leads to a significant transformation of their quantitative and qualitative composition. Many rivers of Ukraine are polluted. The object of research was the surface waters of the rivers Pripyat and Turiya (Volyn region, Ukraine). Analysis of the qualitative and quantitative composition of toxicants (Cd, Pb) showed that the waters of the rivers have high level of pollution. A negative phenomenon in the studied reservoirs is a significant excess of concentrations of heavy metals: lead in 118 times and cadmium in 110 times in August.

scholarly journals Identification of noise level and indication of its impact on residential barrier design in street edge

2020 ◽  
Author(s):  
ARTEKS Jurnal Teknik Arsitektur ◽  
Frengky Benediktus Ola
Keyword(s):  
Human Body ◽  
Noise Level ◽  
Building Design ◽  
Body Parts ◽  
Residential Areas ◽  
The People ◽  
Local Roads ◽  
High Level ◽  
The Impact ◽  
The City

The effect of noises toward human body not only disturb the hearing organs, it can also disturb other human body parts and in some cases may results in reduction of work’s efficiency. This study aims to assess the noise level in residential areas on the edge of the city of Yogyakarta highway and to find any indication of the impact on building design and barriers by homeowners to reduce noise. This research is quantitative associative. Data obtained from measurements and field observations. The results showed that the noise level in residential areas on the edge of the highway, class II street and local roads in the city of Yogyakarta did not meet the standard values of LTNI and LNP. The design of buildings and barriers as a noise reduction factors for the highway was found with a percentage of 100% on the Jalan Bung Tarjo segment, 85.7% on the Jalan Ki Penjawi segment, 20.83% on the Jalan Juminahan segment, 52.08% on the Jalan Bausasran segment, 13.37% on the Jalan Suryodiningratan segment, and 10.7% on the Jalan Mangkuyudan segment. Therefore, the people of Yogyakarta are not fully aware of the high level of road noise.

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 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.

scholarly journals Urban Sprawl Typology in Semarang City

2018 ◽  
Vol 32 (2) ◽  
pp. 131-145
Author(s):  
Yutri Aprillia ◽  
Bitta Pigawati
Keyword(s):  
Affordable Housing ◽  
Urban Sprawl ◽  
City Centre ◽  
Residential Areas ◽  
Zoning Regulations ◽  
Growth Increase ◽  
Medium Level ◽  
High Level ◽  
The Impact ◽  
The City

The population and economic growth increase the need of space leading to an increase in built-up area. There is an increased activity in the city centre which results in the residents feeling less comfortable to live in the area. Hence, the growth of the settlement area tends to head towards the periphery. This condition is an indication of the developments of the built-up area in the periphery. Urban sprawl is a phenomenon of development of an irregular built-up area which leads to the suburbs. Urban development as a result of urban sprawl will trigger an increase in the demand for supporting facilities and infrastructure. An urban Sprawl in Semarang City has resulted in the establishment of residential areas in a conserved region, which is against zoning regulations in the Semarang City Spatial Planning Document (RTRW). Urban Sprawl Typology Research in Semarang City aims to analyse the urban sprawl typology in the city. By knowing the typology, it can minimise the impact of urban sprawl. This research was conducted using the remote sensing method and geographic information system (GIS) with the Shannon's Entropy approach. The results indicated that in 2006 and 2016, urban sprawl in Semarang City had three types of typology that can be classified as typology I (low level), typology II (medium level) and typology III (high level). The impact of urban sprawl on typology II and III can be minimised through the provision of affordable housing with adequate infrastructure, and an improvement in the permit system for housing and settlement development.

scholarly journals Microscopical Characters, Heavy Metals Level and Histopathological Effects of Lawsonia inermis L. Leaves in Female Mice

2020 ◽  
pp. 8-15
Author(s):  
Hanin N. Mughrbi ◽  
Surur A. Ahmed ◽  
Sakina S. Saadawi ◽  
Mukhtar R. Haman ◽  
Laila A. Ghashout ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Microscopical Study ◽  
Histopathological Study ◽  
Aqueous Extracts ◽  
High Concentration ◽  
Lawsonia Inermis ◽  
Female Mice ◽  
Biotechnology Research ◽  
Anomocytic Stomata ◽  
High Level

Aims: The study is intended to compare the freshly collected henna (Lawsonia inermis L.) and the market henna in term of microscopical key elements and heavy metals contamination.  Moreover, this study is aimed to investigate the effect of henna and its oily additives on kidney histology in female mice. Study Design: Department of Pharmacognosy, Faculty of Pharmacy, University of Tripoli and Animals House, Biotechnology Research Center in 2010. Methodology: The powders of collected and market henna have been subjected to a microscopical study with magnification of 5x then 40 x to investigate the henna key elements, which are calcium oxalate clusters, anomocytic stomata, starch grains and fibers. Three elements: arsenic (As), mercury (Hg) and lead (Pd) were analyzed by atomic absorption spectroscopy (AAs) for the collected and market henna. For histopathological study, an aqueous extracts of L. inermis leaves and L. inermis leaves-oils were prepared by maceration. Eighteen female Albino Wister mice (3-4-months, 20-25 gm) were injected with the prepared extracts subcutaneously by dose 50 ml/kg/day for 5 days. Kidneys were collected and subjected to histopathological study. Results: From this study, the microscopical investigation exhibited the presence of some elements which are never mentioned as the henna key elements. Both market and collected henna were contaminated with a high level of heavy metals specially lead (Pd). The histopathological findings implied that there are many histological changes on the kidney tissues such as aggregation of round cells and congestion of blood vessels. Conclusion: The market henna might be adulterated with other types of plant. The presence of a high concentration of lead (Pd) in the collected henna as well as the market henna might be considered as the cause of some L. inermis adverse effects. L. inermis leaves and L. inermis leaves-oils aqueous extracts implied many abnormalities in the kidney tissues.

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