scholarly journals Ivano-Frankivsk City Groundwater Landscapes Ecological State

2017 ◽  
Vol 11 (2) ◽  
pp. 247-253
Author(s):  
Gutsuleak Vasyl ◽  
Fomenko Nataliia
Keyword(s):  
Chemical Analysis ◽  
Urban Areas ◽  
Potable Water ◽  
Ecological State ◽  
Ecological Situation ◽  
Geochemical Monitoring ◽  
Geochemical Evaluation ◽  
Calculation Results ◽  
Maximum Allowable Concentrations ◽  
The City

Abstract Ecological state of groundwater used as a source of potable water in urban areas of the city of Ivano-Frankivsk and its satellites is dealt with. Groundwater is assessed as a ratio between the content of pollutants and the relevant hygiene standards. Environmental assessment grounded on the materials of chemical analysis (74 samples) compared to maximum allowable concentrations and background values. Calculations of the value of hazard and the intensity of pollutions were the methods of ecological and geochemical evaluation of groundwater contamination. Based on calculation results, geochemical maps were compiled depicting satisfactory, hazardous and critical degrees of hydro-ecological situation. Developed maps can serve for the purposes of further geochemical monitoring of ecological situation.

scholarly journals SUSTAINABILITY LEVEL OF DENSELY POPULATED AREA: JATIMULYO URBAN COMMUNITIES, LOWOKWARU DISTRICT, MALANG CITY

2019 ◽  
Vol 21 (4) ◽  
pp. 718
Author(s):  
S Haryani
Keyword(s):  
Urban Communities ◽  
Urban Areas ◽  
Urban Spatial Structure ◽  
City Development ◽  
Large Cities ◽  
Mixed Use ◽  
Big City ◽  
Calculation Results ◽  
Population Urbanization ◽  
The City

Large cities still peak the interests of some Indonesian society. Big city development as the center of economic activity is a powerful pull for society, influencing high workforce from both inside and outside of the city, causing a strong current of urbanization. One main problem that always accompanies urban areas development is density population. Urbanization has caused a very rapid explosion in the city population; one implication is the clumping workforce in large Indonesian cities. The high number of people who choose to settle in the city increase the number of both legal and illegal settlements. In the high-density settlement, many houses are not liveable and irregular. The densely populated settlements find many houses unfit for habitation and irregular. The research aims to formulate the sustainability level of Urban communities, Lowokwaru District, Malang City using quantitative method through sustainability level calculation. Jatimulyo Urban Communities is measured by the sustainability criteria of density, diversity, mixed-use, and compactness to formulate the related sustainable urban spatial structure. Interpretation of the calculation results references similar research. The calculation result shows that Jatimulyo Urban Communities is included in the moderate sustainability level, where density is moderate (101.1-200 people/ha), has a moderate building density (20-40 buildings/ha), has a random diversity level (1.0) and an entropy index (0.51), and compactness is near perfect inequality (Gini Coefficient 0.99).

Mapping of sinkholes in highly urbanized areas: Queretaro, Mexico.

2020 ◽  
Author(s):  
Iliana Guadalupe Hernández López ◽  
Enrique González Sosa ◽  
María de la Luz Pérez Rea ◽  
Dora Celia Carreón Freyre
Keyword(s):  
Urban Areas ◽  
Potable Water ◽  
Experimental Studies ◽  
Internal Erosion ◽  
Constant Field ◽  
Service Capacity ◽  
Documentary Analysis ◽  
Pipe Water ◽  
Urbanized Areas ◽  
The City

<p>In recent years, there have appeared sinkholes of various dimensions in urban areas in different parts of the world. This phenomenon represents a serious social, economic and environmental danger, since it causes alarm among the population, and considerable damage in the infrastructure. The sinkholes are generated mainly by two causes: karstic geology (common in calcic sedimentary rocks) or by the presence of excess water generated by cracks in the pipe water and sewage systems.</p><p>The excess of water is the most frequent case in highly urban centres, where the lack of maintenance or the age of the drainage systems, generate internal erosion and dissolution of the finest particles, producing the abrupt vertical collapse of the soil, which develops an hole in the ground. From experimental studies, the mechanism of soils that generate internal erosion; soil stratification, soil types and their hydrodynamic properties, is well known.</p><p>In Mexico, sinkholes are a very common problem in the center of the country, mainly in states like Aguascalientes, Mexico City, San Luis Potosi, State of Mexico and Queretaro. In particular, in the city of Queretaro, there have been sinkholes, which have affected the traffic and movility of this city.</p><p>Documentary analysis and mapping indicate that this type of sinkholes show a tendency to be generated in the periphery of the capital of Queretaro, because these are areas of potential urban growth, as well as exceeding the service capacity of the sewage and potable water systems, regardless of the construction process of this type of work. The results show that in 2018, at least seven significant sinkholes were generated in the urban area, while in 2019, more than 15 sinkholes, most of which have been ruled to be caused by a rupture in potable water and sewage pipes, were reported.  In this first evaluation we can observe a double increase in the appeareance of sinkholes, therefore, it is necessary to carry out constant field and experimental studies, to understand the mechanism of these phenomena that occur in highly urbanized areas.</p>

scholarly journals Parklands of “Dynamo” park, “Naval Fleet Officers’ House” in the city of Khabarovsk and their ecological state

2021 ◽  
Vol 895 (1) ◽  
pp. 012038
Author(s):  
V I Roslikova ◽  
T I Matveenko
Keyword(s):  
Anthropogenic Impact ◽  
Soil Cover ◽  
Ecological State ◽  
Ecological Situation ◽  
Soil Environment ◽  
Elementary Landscape ◽  
Geological Conditions ◽  
Basic Parameters ◽  
The City ◽  
Bioindication Methods

Abstract On the example of the park zones of the city of Khabarovsk (“Dynamo” and “House of officers of the fleet”), a variety of transformation of the soil cover and the formation of new preferred formations were revealed. The specificity of the state of the soil environment of two parks, located in e same type of engineering-geological conditions, but different variants of anthropogenic impact, is revealed. The changes in the structure of the profiles depending on the position of the soil in the elementary landscape are considered and their biological activity is characterized. The use of bioindication methods indicates that the most comfortable park areas of the city are also susceptible to contamination with heavy metals. It is proposed to use the characteristics of the basic parameters of the soil cover as a promising approach in improving the environment. This will reveal the ecological situation of the territory and make appropriate decisions to improve its condition.

scholarly journals Assessment of the ecological state of the territory by its population in the context of the formation of environmental awareness (on the example of a small town)

2020 ◽  
Vol 208 ◽  
pp. 01012
Author(s):  
Irina Zaitseva ◽  
Aleksander Krikunov
Keyword(s):  
Environmental Policy ◽  
Small Town ◽  
Environmental Awareness ◽  
Environmental Problems ◽  
Ecological State ◽  
Ecological Situation ◽  
Place Of Residence ◽  
General Complex ◽  
The City ◽  
Official Data

The article analyzes the assessment of the ecological state of the territory by its population in a small town to study the state of public environmental awareness. According to official data, the city of Yelets and the Lipetsk region in general face a significant number of unresolved environmental problems against the background of a quite stable ecological situation. Given the general complex ecological situation in the region, the assessment of the ecological situation in specific settlements, rooted in the local agenda, can be radically different. This allows us to speak about the primary attention of the population to their local place of residence and the problems they face directly. The involvement of the population in the activities to preserve the environment of the region as a whole requires promoting public environmental awareness through a competent environmental policy by state and municipal authorities.

Urbanization of fauna on the example of marsh frog (Pelophylax ridibundus)

2015 ◽  
Vol 26 (3-4) ◽  
pp. 116-123
Author(s):  
A. P. Korzh ◽  
T. V. Zahovalko
Keyword(s):  
Urban Areas ◽  
Cognitive Modeling ◽  
Negative Impact ◽  
Natural Populations ◽  
Cellular Level ◽  
Anthropogenic Factors ◽  
Migration Routes ◽  
Corrective Effect ◽  
The Impact ◽  
The City

Recently, the number of published works devoted to the processes of synanthropization of fauna, is growing like an avalanche, which indicates the extreme urgency of this theme. In our view, the process of forming devices to coexist with human and the results of his life reflects the general tandency of the modern nature evolution. Urbanization is characteristic for such a specific group of animals like amphibians, the evidence of which are numerous literature data. Many researchers use this group to assess the bioindicative quality of the environment. For this aim a variety of indicators are used: from the cellular level of life of organization up to the species composition of the group in different territories. At the same time, the interpretation of the results is not always comparable for different areas and often have significantly different interpretations by experts. Urban environment, primarily due to the contamination is extremely aggressive to amphibians. As a consequence, the urban populations of amphibians may be a change in the demographic structure, affecting the reproductive ability of the population, the disappearance of the most sensitive species or individuals, resizing animals, the appearance of abnormalities in the development, etc. At the same time play an important amphibians in the ecosystems of cities, and some species in these conditions even feel relatively comfortable. Therefore, it is interesting to understand the mechanisms of self-sustaining populations of amphibians in urban environments. To assess the impact of natural and anthropogenic factors on the development of amphibian populations were used cognitive modeling using the program Vensim PLE. Cognitive map of the model for urban and suburban habitat conditions were the same. The differences concerned the strength of connections between individual factors (migration, fertility, pollution) and their orientation. In general, factors like pollution, parasites, predators had negative impact on the population, reducing its number. The birth rate, food and migration contributed to raising number of individuals. Some of the factors affected on the strength to of each other as well: the majority of the factors affected the structure of the population, had an influence on the fertility. Thanks to it the model reflects the additive effect of complex of factors on the subsequent status of the population. Proposed and analyzed four scenarios differing strength and duration of exposure. In the first scenario, a one-time contamination occurs and not subsequently repeated. The second and third scenario assumes half board contamination, 1 year (2 scenario) and two years (scenario 3). In the fourth scenario, the pollution affected the population of amphibians constantly. In accordance with the results of simulation, much weaker than the natural populations respond to pollution - have them as an intensive population growth and its disappearance at constant pollution is slow. Changes to other parameters of the model showed that this pollution is the decisive factor -only the constant action leads to a lethal outcome for the populations. All other components of the model have a corrective effect on the population dynamics, without changing its underlying trand. In urban areas due to the heavy impact of pollution maintaining the population is only possible thanks to the migration process – the constant replenishment of diminishing micropopulations of natural reserves. This confirms the assumption that the form of existence metapopulations lake frog in the city. In order to maintain the number of amphibians in urban areas at a high level it is necessary to maintain existing migration routes and the creation of new ones. Insular nature of the placement of suitable habitats in urban areas causes the metapopulation structure of the types of urbanists. Therefore, the process of urbanization is much easier for those species whicht are capable of migration in conditions of city. In the initial stages of settling the city micropopulationis formed by selective mortality of the most susceptible individuals to adverse effects. In future, maintaining the categories of individuals is provided mainly due to migration processes metapopulisation form of the species of existence is supported). It should be noted that the changes in the previous levels are always saved in future. In the case of reorganizations of individuals we of morphology can assume the existence of extremely adverse environmental conditions that threaten the extinction of the micropopulations. 

Epizootological features of demodicosis in homeless animals in the city of Tyumen ЭПИЗООТОЛОГИЧЕСКИЕ ОСОБЕННОСТИ ДЕМОДЕКОЗА У БЕЗДОМНЫХ ЖИВОТНЫХ В ГОРОДЕ ТЮМЕНИ

2019 ◽  
pp. 6-11
Keyword(s):  
Clinical Manifestation ◽  
Seasonal Dynamics ◽  
Urban Areas ◽  
Entire Population ◽  
Potential Threat ◽  
Stray Dogs ◽  
Stray Cats ◽  
The City

Широкое распространение безнадзорных животных на территории городов несет за собой потенциальную угрозу распространения зооантропонозных заболеваний, одним из которых является демодекоз. Невозможно разработать мероприятия, направленные на борьбу с заболеванием и его профилактику, без анализа данных особенностей возникновения и распространения инвазии среди всей популяции восприимчивых животных. Поэтому целью нашей работы явилось изучение распространения демодекоза среди безнадзорных собак и кошек в городе Тюмени. В задачи исследования входило изучение распространения демодекоза и его клинического проявления среди бездомных собак и кошек в условиях города Тюмени и определение сезонной динамики заболевания. Работу выполняли в 2016-2018 гг. на базе кафедры анатомии и физиологии ФГБОУ ВО ГАУ Северного Зауралья, в лаборатории акарологии ВНИИВЭА – филиала ТюмНЦ СО РАН, а также в производственных условиях на базе пункта временного содержания безнадзорных домашних животных МКУ «ЛесПаркХоз». Демодекозная инвазия распространена среди бездомных кошек и собак. Наиболее часто демодекоз встречается у собак, экстенсивность инвазии от 0,65 до 0,72%. Заболевание демодекозом у бездомных собак регистрировали на протяжении всего года, но 54,6% больных собак поступали в апреле и мае. Большинство больных демодекозом – это молодые собаки в возрасте от 1,5 месяцев до 2-х лет – 75,76%, животные старше двух лет гораздо реже страдали от демодекоза – 24,24%. Генерализацию демодекоза регистрировали у 21 собаки (63,64%), а локализованные очаги – у 12 собак (36,36%). Наиболее распространенной формой проявления демодекоза у бездомных собак является пустулезная, или пиодемодекоз. Данная форма заболевания была отмечена у 16 собак (48,49%), чешуйчатая форма отмечалась у 10 собак (30,30%), а смешанная – у 7 собак (21,21%). The widespread use of stray animals in urban areas carries with it the potential threat of the spread of zooanthroponotic diseases, one of which is demodicosis. It is impossible to develop measures aimed at combating the disease and its prevention without analyzing the data on the characteristics of the occurrence and spread of invasion among the entire population of susceptible animals. Therefore, the purpose of our work was to study the distribution of demodicosis among street dogs and cats in the city of Tyumen. The objectives of the study included the study of the spread of demodicosis and its clinical manifestation among stray dogs and cats in the conditions of the city of Tyumen and the determination of the seasonal dynamics of the disease. Demodectic invasion is common among stray cats and dogs. Most often, demodicosis occurs in dogs, with extensive invasion from 0.65 to 0.72%. Demodecosis in stray dogs was recorded throughout the year, but 54.6% of sick dogs were reported in April and May. The majority of patients with demodicosis are young dogs between the ages of 1.5 months and 2 years old - 75.76%, animals older than two years suffer less from demodicosis, only 24.24%. Generalization of demodicosis was recorded in 21 dogs (63.64%), and localized foci in 12 dogs (36.36%). The most common form of demodicosis in stray dogs is pustular or pyodemodecosis. This form of the disease was observed in 16 dogs (48.49%), scaly form, was observed in 10 dogs (30.30%), and mixed in 7 dogs (21.21%).

Survey of the Ecological State of Eight Man-Made Lakes Within the City Limits of Freiburg, Germany

1992 ◽  
Vol 27 (2) ◽  
pp. 301-310
Author(s):  
Agnes G. Pulvermüller ◽  
Heidulf E. Müller
Keyword(s):  
Escherichia Coli ◽  
Water Quality ◽  
Biochemical Oxygen Demand ◽  
Secchi Depth ◽  
Oxygen Demand ◽  
Ecological Condition ◽  
Ecological State ◽  
Biological Parameters ◽  
The City ◽  
Oxygen Profiles

Abstract The survey of the ecological condition of eight lakes within the city limits of Freiburg included hydrochemical measurements and analyses (oxygen profiles, Secchi depth, pH, biochemical oxygen demand) together with biological parameters (chlorophyll a, phytoplanktonbiomass, Escherichia coli counts), as well as parasitic examinations. Only some of the investigated parameters are presented here. Seven of the eight lakes were found to be eutrophic. The process of eutrophication appears to be still in progress. One lake can be considered to be hypertrophic. Schistosome dermatitis was observed. The water quality in general was considered to be acceptable; suggestions to maintain or improve the water quality are made.

PHYTOMONITORING AS A METOD OF THE ASSESSMENT OF ATMOSPHERIC AIR POLLUTION BY URBAN ENVIRONMENT BY FINE DUST

2019 ◽  
pp. 42-53
Author(s):  
Irina Glinyanova ◽  
Valery Azarov ◽  
Valery Fomichev
Keyword(s):  
Urban Environment ◽  
Urban Areas ◽  
Fine Particles ◽  
Prunus Armeniaca ◽  
Dust Particles ◽  
Fine Dust ◽  
Control Zone ◽  
Atmospheric Air ◽  
Random Functions ◽  
The City

Fine dust: (PM2.5, PM10) is a priority pollutant that contributes to the development of numerous dis-eases in urban areas. The purpose of this scientific work is to study the dispersed composition of dust parti-cles on the leaves of apricot trees (Prúnus armeníaca) in the residential zone of Volgograd. The novelty of the work lies in the study of the dispersed composition of dust particles on the leaves of apricot trees (Prúnus armeníaca) in the residential zone in the city of Volgograd near the construction industry enterprise, me-chanical engineering, leather production and railway transport line in comparison with the conditionally clean (control) zone of the SNT “Orocenets” ”(Sovetsky District, Volgograd) from the standpoint of random functions expressed by integral distribution curves of the mass of particles over their equivalent diameters. As a result of the research, the dispersed composition of dust on the leaves of apricot trees (Prúnus ar-meníaca) in the residential area of Volgograd was revealed. Fine particles were found: PM2.5, PM10 in each of the studied points, which by their values, both in their number and mass fraction, significantly exceed the data on fine dust in a conditionally clean area (control) in the SNT “Oroshanets” (Sovetsky district Volgo-grad), which creates certain environmental risks for local residents. The dispersed analysis of particles from the standpoint of random functions in the future will allow with a sufficiently high degree of accuracy to pre-dict the dust content of urban atmospheric air in the range of monthly and / or seasonal average values compared to the traditional measurement of fine dust concentration in atmospheric air of the urban environ-ment as the maximum single or daily average. At the same time, further studies of dust on the leaves of plants in an urban environment, namely, the study of the density of its sedimentation, will also reveal a group of ur-ban plants that are best suited to retain PM2.5 and PM10 on leaf plates in this region, which can significantly increase the quality of the atmospheric air of the urban environment and be of a recommendatory nature for the state-owned landscaping services of the city of Volgograd when improving the green areas of a megacity.

scholarly journals Changes in Water Quality of the River das Antas as It Passes through Rural and Urban Areas

Urban Science ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 22
Author(s):  
Valdemir Antoneli ◽  
Manuel Pulido-Fernández ◽  
João Anésio Bednarz ◽  
Leonardo Brandes ◽  
Michael Vrahnakis ◽  
...  
Keyword(s):  
Rural Area ◽  
Urban Areas ◽  
Human Consumption ◽  
Rural And Urban Areas ◽  
Ph Values ◽  
Rural And Urban ◽  
Feasible Option ◽  
Decreasing Ph ◽  
The City

The catchment area of River das Antas (Irati, Paraná, Brazil) is of high importance both for human consumption and irrigation. Within Irati, this river passes through a rural area and through the city of Irati, crossing both poor and rich neighbourhoods. We selected three study areas downstream (a rural area, poor community, and rich neighbourhood) in which we measured turbidity, the concentration of sediments and pH during rainy days. Our results showed downstream trends of increasing turbidity and concentrations of sediments with decreasing pH. The values of turbidity and of concentration of sediments were significantly different in the rural area, while the pH values were significantly different between the three study areas. These findings highlight the effect of agricultural activities in the generation of sediments and turbidity. The—presumably expected—effects of organic urban waste from the poor neighbourhood were also detected in the pH values. We conclude that efforts should be made to ensure that land planning and training/education programmes on sustainable farming practices are undertaken by the authorities to reduce water pollution and its effects on water bodies during rainfall events, since paving streets is not a feasible option in the short term due to the high costs associated with this measure.

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