scholarly journals Role of green spaces for migration and setting of heavy metals (as illustrated by Holosiivskyi National Nature Park, Kyiv)

2021 ◽  
pp. 97-105
Author(s):  
T. S. Tesolkina ◽  
D. V. Lukashov
Keyword(s):  
Heavy Metals ◽  
Forest Litter ◽  
Green Spaces ◽  
Winter Period ◽  
Soil System ◽  
Atmospheric Air ◽  
Leading Role ◽  
Nature Park

Air pollution by heavy metals in the urbanized surroundings presents a serious threat to human health and the environment. Road dust is distinguished as a high-level pollutant and characterized by a significant content of heavy metals. Green spaces play a leading role when it comes to improving the quality of atmospheric air in megalopolises. They trap pollutants. Most of them settle on the surfaces of plant leaves, but some can be also absorbed through the stomata. As a result of these processes, pollutants, along with fallen leaves, can later migrate to other components of the ecosystem. An important component of this system is forest litter that plays a kind of trigger role by regulating the directions of substance flows in the “leaves-litter-soil” system, keeping chemical elements from leaching out and evenly distributing their inflows. Thus, forest litter functions as a sort of biogeochemical barrier and plays a leading role in the ability of ecosystems to self-regulate. Thus, the purpose of this work was to assess the role of green spaces in improving the quality of atmospheric air in the urban surroundings and to conduct a preliminary assessment of the features of the processes of heavy metals transformation within the forest litter. The model site of research is located within the territory of Holosiivskyi forest, a part of the Holosiivskyi National Nature Park (Kyiv). The content of heavy metals in the forest litter was determined using the methods of atomic absorption spectrophotometry. The results of the study of Cu, Ni, Pb, Cd, Cr and Zn content annual dynamics within the forest litter of the hornbeam forest of the Holosiivskyi National Nature Park show that the maximum concentrations are typical for the summer period, when the litter reserves sharply decrease, and the minimum ones – for the autumn-winter period during their accumulation. Comparison of the distribution of heavy metals content within the leaf and fermented layers showed that, under the conditions of the model area, Zn, Cu, and Ni are predominantly accumulated right in the leaf layer of the forest litter. Moreover, it was revealed that the processes of leaf litter mineralization lead to migration of Cu, Ni, Pb, Cd and Cr, and setting of Zn.

Variations in Mineral/heavy metals profiling and preventive role of trichomes in Peach Fruits treated with CaC2

2020 ◽  
Vol 23 ◽  
Author(s):  
Muhammad Irfan ◽  
Safdar Abbas ◽  
Beenish Jehan Azhar ◽  
Shakeel Ahmad ◽  
Hafsa Muhammad ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Nutritional Value ◽  
Fine Powder ◽  
Calcium Carbide ◽  
Control Group ◽  
Tandem Accelerator ◽  
Health Promoting ◽  
Elemental Profiling

Background: Phytonutrients in peach fruits have health promoting antioxidants against various chronic diseases. However, there is no extensive data to show the nutritional values of Local peach cultivars after post-harvest treatments. Objective: Mainly this study was objective to determine the effect of calcium carbide on nutritional value and quality of fruits of Pakistani peach cultivars. Methods: The peach fruits were collected from three different peach orchids of KPK and the fruits were divided into 4 groups while 5th group was collected from local fruit shop. Each experimental group was treated with different concentration of calcium carbide whereas control group was not treated. The peel and pulp samples were oven dried and ground to fine powder separately. The elemental compositions were determined using Particle Induced X-ray emission and Pelletron Tandem Accelerator. Result: Sixteen elements were identified in peach fruits and the elements were Al, P, S, Cl, K, Ca, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, and Se. In peel, concentration of some elements increased or decreased after treatment with CaC2 while in pulp the conc. of nearly all detected elements was increased in treated samples. We found significantly high amount of heavy metals traces including As, Se, Co, Si, and P in peach fruits treated with CaC2. Interestingly, the presence of trichomes in peach skin prevents the transfer of these heavy metals deep into the pulp which was also verified by the elemental profiling of nectarines. Conclusion: Conclusively, the artificial ripening with CaC2 changed the nutritional value of peach fruits that has higher health risks if consume with the peel. According to our best knowledge, this is the first report that highlights the effects of CaC2 which deteriorate the nutritional value of peach fruits in Pakistan.

scholarly journals SCIENTIFIC AND METHODOLOGICAL ASPECTS AND PRACTICAL EXPERIENCE FOR THE FORMATION OF THE EVIDENTIAL BASE OF HAZARD TO HEALTH IN THE POPULATION IN THE ZONE OF INFLUENCE OF WASTE FROM THE PAST ECONOMIC ACTIVITY

2019 ◽  
Vol 96 (11) ◽  
pp. 1038-1044 ◽  
Author(s):  
N. V. Zaitseva ◽  
Irina V. May ◽  
S. V. Klein ◽  
S. S. Khankharev ◽  
A. A. Boloshinova
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Negative Impact ◽  
Health Hazard ◽  
Harmful Effect ◽  
Morbidity Rate ◽  
Atmospheric Air ◽  
The Past ◽  
Zone Of Influence

There are described an algorithm and methods for collecting the evidential base for causing hazard to the health of the population of Zakamensk (the Republic of Buryatia) in the zone of influence of the waste of the past activities of the Dzhidinsky tungsten-molybdenum combine. The source of danger is lying sands, containing a complex of toxic heavy metals - lead, cadmium, manganese, nickel, chromium, etc. The algorithm for the formation of the evidential base included: a general analysis of the sanitary and hygienic situation; assessment in the dynamics of the quality of atmospheric air, drinking water, soil, food; assessment of the risk to the health of the population; epidemiological studies; in-depth clinical surveys of a representative group of city residents (280 people). In the blood of the examinees, heavy metals were identified as biological markers of the exposure. There was evaluated a complex of the response (effect) adequate to effects of laboratory markers. By methods of mathematical statistics there was established the presence of reliable relationships in the system “source of hazard - the quality of the environment - exposure to risk factors - health status.” The hazard to the health of a citizen, due to the negative impact of the factor, was considered to be proven if it was possible to build a continuous step-by-step logical chain of relationships between the source of the harmful effect, the quality of the habitat and the establishment of the fact of the disease. The quality of the habitat of the population of Zakamensk was shown to give rise in unacceptable risks to the health of residents. The main influencing factor is the pollution of atmospheric air, local food products and drinking water from public and private wells. Risks are realized in terms of a level of the primary morbidity rate of the population of the respiratory diseases, endocrine system, digestive organs that is relatively high compared to the matched area. The relationship between health hazard and environmental factors has been fully proved in 14% of the surveyed persons. At the same time, the territory was shown not be characterized as a zone of “ecological disaster” or “an emergency environmental situation”.

scholarly journals A soundscape analysis for selected parks in Bydgoszcz

2018 ◽  
Vol 45 ◽  
pp. 00097
Author(s):  
Małgorzata Sztubecka
Keyword(s):  
Sustainable Development ◽  
Sound Level ◽  
Green Spaces ◽  
Future Generations ◽  
Subjective Perception ◽  
Negative Effects ◽  
City Center ◽  
The City

Areas that are considered human-friendly are green spaces. The existing urban parks are designed to fulfill the role of relaxation, recreation, and entertainment. However, in many cases, these are historic places, which at the time didn't have much of an impact on external factors. Sustainable development issues are related to the quality of life and the usage of the environment and its resources by present and future generations. Noise and noise protection is an issue that is part of sustainable development. The inadequate implementation of the principles of sustainable development and non-inclusion of noise can noticeably lead to negative effects now and in the future. The aim of the paper is to analyze the soundscapes of two Bydgoszcz parks located in the city center. The values of the equivalent sound level for these areas were obtained from the existing Bydgoszcz acoustic plan. Subsequently, the resulting distribution of noise was compared with the results of subjective perception of sounds by visitors. On this basis, conclusions can be drawn regarding the ways of shaping such areas while taking into account the perception of visitors.

scholarly journals Impact of intellectual resources on the economic development

2017 ◽  
pp. 219-230
Author(s):  
D. KUKAREKO
Keyword(s):  
Quality Of Life ◽  
Economic Development ◽  
Development Economic ◽  
Innovative Development ◽  
Economic Competitiveness ◽  
Leading Role ◽  
Institutional Infrastructure ◽  
The World

This article deals with the change in the leading role of resources that influence current economic development in the world. Postindustrial informational area and knowledgebased economy require newly formed institutional infrastructure and fresh view on the values and basis of the countries’ wealth. According to the necessity of improving the quality of life based on economic competitiveness ability, attracting investments and innovative development, economic policy should be lead adjusted for the leading role of informational industries that are able to renew countries’ economic growth and overcome crisis.

scholarly journals PSYCHOLOGICAL STUDIES OF THE MOTIVATIONAL-SEMANTIC SPHERE IN PATIENTS WITH DIABETES MELLITUS

2018 ◽  
pp. 6-9
Author(s):  
I. Burovska
Keyword(s):  
Diabetes Mellitus ◽  
Detailed Examination ◽  
Social Significance ◽  
Way Of Life ◽  
Leading Role ◽  
Patients With Diabetes ◽  
Psychological Features ◽  
Psychological Studies

The article is devoted to the study of the motivational and semantic sphere for patients with diabetes mellitus. Description of the patients’ main directions of the psychological features are distinguished. This study aims to explorer the formation of a hierarchical system of values, attitudes, experiences and motives of this category of patients. Different approaches in the study of this problem were noted, which point to the great possibilities of prevention in the process of rehabilitation in a given subject. The leading role of psychosocial factors of impairment of their mental adaptation and quality of life in patients with diabetes mellitus is determined. Conducting theoretical analysis of modern psychological studies of the motivational and semantic sphere in patients with diabetes makes it possible to identify and analyze the main directions of rehabilitation of this category of persons, to outline the main motivational components of the disease and their relationship with the semantic sphere of each particular person. The peculiarities of the motivational and semantic sphere of persons with diabetes mellitus are described. The relationship between the motivational and intellectual sphere of personality and its influence on the formation of motives are considered. The importance of life-building and the desire to adapt to a particular way of life, to increase its qualitative characteristics and social significance, to take into account the psychological characteristics of patients, are outlined. A detailed examination of the two structural components of this study (which is one of the key tasks of this topic) allows us to more closely combine them into a single entity that forms the life-orienting purposes of patients with diabetes, and draws attention to the dynamics of motivational processes that occur in individuals during the period the course of the disease and the possibility of correction of these processes. The prospects of further researches which consist in formation and modeling of holistic construct of motivational – semantic sphere in patients with diabetes mellitus are outlined.

scholarly journals The role of soil chemistry and soil physics in protecting soil quality: variability of sorption and transport of cadmium as an example.

1987 ◽  
Vol 35 (3) ◽  
pp. 347-359 ◽  
Author(s):  
F.A.M. de Haan ◽  
S.E.A.T.M. van der Zee ◽  
W.H. van Riemsdijk
Keyword(s):  
Soil Properties ◽  
Soil Quality ◽  
Soil Chemistry ◽  
Chemical Quality ◽  
Soil Physics ◽  
Soil System ◽  
Soil Functioning ◽  
Adsorptive Equilibrium

Soil has many functions in sustaining life. The prerequisite conditions for proper soil functioning may be expessed in terms of quality. Chemical quality of soil is predominantly determined by behaviour of compounds in soil. Compound behaviour is the result of the interactions of properties of the compounds and of the soil system under consideration. These can satisfactorily be described by applying methodical rules as derived in soil chemistry and soil physics. This is elaborated with examples referring to the static situation prevailing at adsorptive equilibrium, and to the dynamic situation of compound displacement in soil. The variability of soil properties appears to be of major concern. In these examples, attention is limited to the behaviour of cadmium in soil. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals Non-surgical treatment of uterine fibroids. Efficacy of the selective progesterone receptor modulator

2019 ◽  
pp. 13-20
Author(s):  
E. R. Dovletkhanova ◽  
E. A. Mezhevitinova ◽  
V. N. Prilepskaya
Keyword(s):  
Surgical Treatment ◽  
Uterine Leiomyoma ◽  
Experimental Studies ◽  
Uterine Fibroids ◽  
Leading Role ◽  
Receptor Modulator ◽  
Genetic Mechanisms ◽  
Non Surgical Treatment

The leading role of ovarian steroid hormones in the pathogenesis of uterine fibroids is confirmed by epidemiological, clinical and experimental studies. The new approaches to the treatment of this disease may be developed on the basis of the biological and genetic mechanisms underlying the occurrence and development of leiomyomas. The use of ulipristal acetate in patients with uterine leiomyoma may be a promising method for preparing them to the surgical procedures, but also for avoiding surgical treatment and related hypoestrogenic conditions, which results in the improvement of the women’s quality of life.

The Role of Urban Green Spaces in the Transformation of Community Ecosystem in Developing Countries

2020 ◽  
pp. 284-311
Author(s):  
José G. Vargas-Hernández ◽  
Justyna Anna Zdunek-Wielgołaska ◽  
Karina Pallaggst
Keyword(s):  
Community Involvement ◽  
Detailed Examination ◽  
Green Spaces ◽  
Empirical Literature ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Climate Regulation ◽  
Existing Data

This chapter aims to analyze the review the existing literature on some important features of urban green spaces such as the components, functions, services, community involvement, initiatives, and actions from an ecosystem perspective. The analysis begins from the assumption that urban green spaces are ecosystems of vital importance in enhancing the quality of life in an urban environment and supplying ecosystem services such as biodiversity and climate regulation. Meeting the needs of users is related with the functions and services that urban green spaces provide to communities. The methods employed in this analysis are the empirical literature and documents review, analysis of existing data on uses and users, interviews with authorities, and more detailed examination of a case specific data. Also, as some concluding remarks, some wider environmental, economic, and social initiatives for local authorities and communities are suggested that can justify initiatives by all represented and involved stakeholders. Finally, the study advances some opportunities, challenges, and further research.

scholarly journals REVIEW OF SOME ECOLOGICAL ASPECTS OF STERLET (ACIPENSER RUTHENUS LINNAEUS, 1758)

2018 ◽  
pp. 115-122 ◽  
Author(s):  
Andrey Aleksandrovich Chemagin
Keyword(s):  
Heavy Metals ◽  
Genetic Diversity ◽  
Diversity Index ◽  
Natural Populations ◽  
Winter Period ◽  
Morphometric Traits ◽  
Spawning Period ◽  
Leading Role ◽  
Acipenser Ruthenus ◽  
Turbid Waters

The article presents the review of scientific works on ecology and biology of sterlet aspects of its distribution, spawning, migration, feeding and accumulation of heavy metals in organs and tissues. It has been stated that in natural populations there are two morphs - with a sharp (long) and blunt (short) rostrum. It has been assumed that they are characterized by the separation of spawning period into time intervals. In artificial aquaculture sterlet individuals show a decrease in morphometric traits, which may result from the identical farming conditions or the reduction of genetic diversity. The background color of the tanks used for cultivation can affect the linear-weight characteristics of fish: in light colored tanks there are fish of smaller sizes, in dark colored ones - fish of larger sizes. It has been found that the color of the species body similar to the bottom substrate acts as s a highly effective protection against predators in turbid waters. The study of sterlet population of in the Ob’-Irtysh and Yenisei basins showed that the former population has a higher genetic diversity index. Migration length of sterlet is insignificant: up to 250 km. It spawns in the spring-summer period, in winter period it concentrates in the wintering holes. The leading role in sterlet feeding belongs to the representatives of benthos and zooperiphyton, which are characteristic of lithophilic, lythoreophilic and psammoreophilic biocenoses. Maximum concentrations of heavy metals have been registered in the liver and gills, minimal in the muscles. The largest accumulation of elements is noted for Fe, Al and Zn, the minimum for Cd and Co.

scholarly journals Exploration of "1 + X" Talent Training Mode in Higher Vocational Colleges for “Intelligent Manufacturing in the New Era”

CONVERTER ◽  
2021 ◽  
pp. 673-680
Author(s):  
Yi Huang, Hua Meng, Yuan Ren
Keyword(s):  
Intelligent Manufacturing ◽  
Literature Analysis ◽  
Level System ◽  
New Era ◽  
Leading Role ◽  
Training Mode ◽  
Training Quality ◽  
Vocational Colleges

In the post epidemic era, restarting the economic and social development of all countries is to give full play to the comprehensive leading role of "talents". Nowadays, there is a shortage of the technical and skilled talents in our country has reached 20 million. It is urgent to alleviate the structural contradiction of technical and skilled talents and improve the quality of technical and skilled talents training according to the standard industry, industry and occupation standards. In order to improve the training quality of skilled talents and adapt to the development requirements of "intelligent manufacturing in the new era", based on literature analysis and experience observation, this paper deeply interprets the connotation of "1 + X" vocational skill level system, analyzes the pain points of traditional vocational education talent training mode, and creatively puts forward the 1 + X talent training mode in higher vocational colleges. Besides it elaborates the establishment of the curriculum system training room, the cultivation of teachers, the evaluation of students' learning achievements, etc.

Sign in / Sign up

Export Citation Format

Share Document