AIR POLUTTION FROM EVAPORATION OF OVERFLOWS AND LEAKS OIL PRODUCTS IN URBAN AREAS

2020 ◽  
pp. 13-24
Author(s):  
Ruslan Khrestenko ◽  
Ekaterina Sokolova ◽  
Valery Azarov
Keyword(s):  
Urban Environment ◽  
Urban Areas ◽  
Quantitative Assessment ◽  
Maximum Permissible Concentration ◽  
Oil Products ◽  
Background Concentrations ◽  
Atmospheric Air ◽  
Filling Station ◽  
Mass Flows ◽  
Urbanized Areas

Possible locations in the urban environment where overflows and leaks of oil products may occur are indicated. It is noted that the number of overflows and leaks of oil products in the urban environment is large and they occur constantly. The problems of air pollution in the urban environment from overflows and leaks of oil products are considered, on the example of petrol filling station. It is underlined that air most pollute at overflows and leaks of oil products in urban areas due to evaporation of oil products. The insufficiency of the applied measures at overflows and leaks of oil products is indicated. It is noted that the volume of a single leak of oil products is not known, as a rule. It is indicated that the volume of leak characteristic of the urban environment can be up to fifty liters in accordance with the regulatory and technical document. The areas of petrol leaks, which are typical for the urban environment, are calculated. The intensity of evaporation of pet-rol is calculated and mass flows of evaporation petrol from areas of petrol leaks are calculated on the base of obtained values. The quantitative assessment of mass flow of evaporation petrol from areas of leaks is carried out. The dispersion of petrol into atmospheric air from one square meter of leak is calculated by software. It is shown that there is an exceeding of the maximum single maximum permissible concentration of petrol in the atmospheric air at a distance of several tens of meters from the place of the leak even with insignificant single leak of petrol. It is indicated that there are cases when two or more leaks of oil products occur simultaneously in the urban environment. It is underlined that urbanized areas are characterized by a high density of objects where oil products are applied. It is noted that in the atmospheric air in the urban environment there are al-ready background concentrations of petrol, which are close to the maximum permissible concentration of petrol. Increase of the concentration of petrol in the atmospheric air, which comes from the evaporation of the leak, can lead to an excess of the maximum permissible concentration. The task of updating measures to collect overflows and leaks of oil products is set in the urban environment.

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 EVALUATION OF THE RESPIRATORY SYSTEM OF THE POPULATION IN URBAN AREAS

2018 ◽  
Vol 97 (3) ◽  
pp. 230-233 ◽  
Author(s):  
Zulkiya I. Namazbaeva ◽  
L. T. Bazelyuk ◽  
A. B. Eshmagambetova
Keyword(s):  
Early Detection ◽  
Respiratory System ◽  
Urban Areas ◽  
Preventive Measures ◽  
Toxic Substances ◽  
Atmospheric Air ◽  
Industrial City ◽  
Toxic Agents ◽  
Exhaled Air ◽  
Urbanized Areas

Ollution of atmospheric air in an industrial city saturated with toxic substances leads to the gain in diseases of the respiratory system. With the aim to identify early pathologies, adolescents living in urbanized areas were examined. There were revealed desquamation, decay of epithelial cells of the nasal cavity and enhanced synthesis of the surfactant according to the condensate of exhaled air, which indicates to a non-specific defeat of the respiratory system by toxic agents. These studies can be used for the development of preventive measures and early detection of diseases caused by unfavorable environmental conditions.

scholarly journals Domestic urbanization in formation of comfortable urban environment

2019 ◽  
Vol 135 ◽  
pp. 03062
Author(s):  
Tatyana Karakova ◽  
Anna Zhogoleva ◽  
Aleksandra Teryagova
Keyword(s):  
Sustainable Development ◽  
Urban Development ◽  
Urban Environment ◽  
Urban Areas ◽  
Urbanized Areas ◽  
Balanced Solution

This article explores the interlinkages between the stages of urban development, improvement and “domestic” urbanization. The issue is considered in the context of historical, economic, socio-demographic, environmental and sanitary factors. The work justifies that the study of processes of agglomeration development of urban areas makes it possible to predict the prospects of formation of engineering and transport infrastructures, to identify the most effective and balanced solution in the context of sustainable development of urbanized areas.

scholarly journals Determinants of occurrence of epiphytic mosses in the urban environment; a case study from Katowice city (S Poland)

2015 ◽  
Vol 64 (3) ◽  
pp. 275-286 ◽  
Author(s):  
Barbara Fojcik ◽  
Martyna Chruścińska ◽  
Aleksandra Nadgórska-Socha ◽  
Adam Stebel
Keyword(s):  
Urban Environment ◽  
Urban Areas ◽  
Industrial District ◽  
Air Humidity ◽  
Urbanized Areas ◽  
Main Factors ◽  
Bark Chemistry ◽  
S Poland ◽  
Willow Trees

Abstract Katowice is the largest city within the Upper Silesian Industrial District (S Poland). The investtigation conducted in this town earlier (1998-2000) showed limited number of epiphytic species. Recent study showed significant increase in number of localities of obligate epiphytes (mainly from the genera Orthotrichum and Ulota). They colonize mainly the edges of strongly urbanized areas bordering forest complexes and larger parks. This paper is an attempt to answer the question as currently in Katowice shape the main factors determining the occurrence of epiphytes. Crucial factors which govern epiphytes colonization processes in urban areas have been confirmed: bark chemistry (taking into account natural attributes and the influence of pollution) and air humidity. The preference of epiphytes towards inhabited phorophytes was confirmed as well. The most commonly and abundantly inhabited species were poplar and willow trees (which have a higher pH of bark).

scholarly journals Understanding policing demand and deployment through the lens of the city and with the application of big data

Urban Studies ◽  
2021 ◽  
pp. 004209802098100
Author(s):  
Mark Ellison ◽  
Jon Bannister ◽  
Won Do Lee ◽  
Muhammad Salman Haleem
Keyword(s):  
Big Data ◽  
Urban Environment ◽  
Urban Areas ◽  
Multilevel Model ◽  
Open Data ◽  
Front Line ◽  
Criminological Research ◽  
The Social ◽  
Generalised Method Of Moments ◽  
The City

The effective, efficient and equitable policing of urban areas rests on an appreciation of the qualities and scale of, as well as the factors shaping, demand. It also requires an appreciation of the factors shaping the resources deployed in their address. To this end, this article probes the extent to which policing demand (crime, anti-social behaviour, public safety and welfare) and deployment (front-line resource) are similarly conditioned by the social and physical urban environment, and by incident complexity. The prospect of exploring policing demand, deployment and their interplay is opened through the utilisation of big data and artificial intelligence and their integration with administrative and open data sources in a generalised method of moments (GMM) multilevel model. The research finds that policing demand and deployment hold varying and time-sensitive association with features of the urban environment. Moreover, we find that the complexities embedded in policing demands serve to shape both the cumulative and marginal resources expended in their address. Beyond their substantive policy relevance, these findings serve to open new avenues for urban criminological research centred on the consideration of the interplay between policing demand and deployment.

scholarly journals A Study on Urban Inundation Using SWMM in Busan, Korea, Using Existing Dams and Artificial Underground Waterways

Water ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1708
Author(s):  
Yeon-Moon Choo ◽  
Sang-Bo Sim ◽  
Yeon-Woong Choe
Keyword(s):  
Climate Change ◽  
Urban Areas ◽  
Flood Damage ◽  
Virtual Model ◽  
Sustainable Cities ◽  
Annual Average ◽  
New Methods ◽  
Average Rainfall ◽  
Reduction Methods ◽  
Urbanized Areas

The annual average rainfall in Busan area is increasing, causing frequent flooding of Busan’s Suyeong and Oncheon rivers. Due to the increase in urbanized areas and climate change, it is difficult to reduce flood damage. Therefore, new methods are needed to reduce urban inundation. This study models the effects of three flood reduction methods involving Oncheon River, Suyeong River, and the Hoedong Dam, which is situated on the Suyeong. Using EPA-SWMM, a virtual model of the dam and the rivers was created, then modified with changes to the dam’s height, the installation of a floodgate on the dam, and the creation of an underground waterway to carry excess flow from the Oncheon to the Hoedong Dam. The results of this study show that increasing the height of the dam by 3 m, 4 m, or 6 m led to a 27%, 37%, and 48% reduction in flooding, respectively, on the Suyeong River. It was also found that installing a floodgate of 10 × 4 m, 15 × 4 m, or 20 × 4 min the dam would result in a flood reduction of 2.7% and 2.9%, respectively. Furthermore, the construction of the underground waterway could lead to an expected 25% flood reduction in the Oncheon River. Measures such as these offer the potential to protect the lives and property of citizens in densely populated urban areas and develop sustainable cities and communities. Therefore, the modifications to the dam and the underground waterway proposed in this study are considered to be useful.

scholarly journals Urbanization effects on the composition and structure of macrophytes communities in a lotic ecosystem of Pernambuco State, Brazil

2016 ◽  
Vol 76 (4) ◽  
pp. 888-897 ◽  
Author(s):  
L. R. C. C. Xavier ◽  
F. Scherner ◽  
D. C. Burgos ◽  
R. C. Barreto ◽  
S. M. B. Pereira
Keyword(s):  
Urban Areas ◽  
Floristic Composition ◽  
Freshwater Ecosystems ◽  
Metropolitan Region ◽  
Macrophyte Communities ◽  
Composition And Structure ◽  
Lotic Ecosystem ◽  
Dry Seasons ◽  
Urbanized Areas ◽  
Wet And Dry Seasons

Abstract Population growth in urban areas changes freshwater ecosystems, and this can have consequences for macrophyte communities as can be seen in the municipalities that border the Capibaribe River, Pernambuco, Brazil. This study reports the effects of urbanization on the composition and structure of macrophyte communities in areas along that river. The following urbanized and non-urbanized sampling sites were chosen: Sites 1 and 2 (municipality of Santa Cruz do Capibaribe), Sites 3 and 4 (municipality of Toritama), and Sites 5 and 6 (metropolitan region of Recife). These sites were visited every two months from January to July 2013 to observe seasonal variation (wet and dry seasons). Thirty-one species were identified. Generally, the non-urbanized sites had a higher number of species. Multivariate analyses indicated significant overall differences between urbanized and non-urbanized areas (R = 0.044; p < 0.001) and between seasons (R = 0.018; p < 0.019). Owing to the large variation in physical, chemical, and biological characteristics between urbanized and non-urbanized areas, we found that urbanization significantly influenced the floristic composition and structure of macrophyte communities.

scholarly journals FEATURES OF ASSESSMENT OF ANTHROPOGENIC LOADS ON NATURAL COMPLEXES

2020 ◽  
Vol 2 (5) ◽  
pp. 19-24
Author(s):  
P. Evdokimov
Keyword(s):  
Urban Environment ◽  
Urban Areas ◽  
Anthropogenic Impact ◽  
Urban Environments ◽  
Anthropogenic Factors ◽  
Factors Affecting ◽  
Main Research ◽  
Regulatory Documents ◽  
Dialectical Approach ◽  
The Impact

the article describes the problems of assessing the anthropogenic impact of human activity on natural com-plexes surrounding urbanized territories. Among the main research tasks are development of methodological foundations for assessing the quanti-tative and qualitative composition at anthropogenic impact on natural complexes surrounding urban areas. The main method of this research include a dialectical approach that focuses on generally accepted logi-cal research methods (analysis, systematic approach, generalization) and their synthesis using relevant in-formation materials. The author considered various methods of assessing the impact of various factors on the environment, and also carried out the examination of urban decisions related to the appointment of a category (status) the natural resources included in the urban environment in Moscow. The Russian capital is a European metropolis, the largest city-millionaire in Europe and a typical object of research to identify the effects of various anthropogenic factors. The implementation at economic activity in the metropolis is accompanied by the emergence of problems, the solution of which has not been found yet. Analysis of methods for assessing the impact at the various factors on the environment was carried out taking into account the provisions in regulatory documents governing the appointment for protected areas urban environment. Provisions of regulatory documents and decisions of executive authorities designed to use natural (forest) resources in urban environments. The absence of approved methods for assessing certain types of land plots with a protected status was identified. The main factors affecting the quality of biogeocenosis were identified. The main features of the applica-tion methods for assessing the status and possibility in recreational development in territories of varying de-grees at development are considered.

scholarly journals PARAMETERS OF INTEREST FOR THE DESIGN OF GREEN INFRASTRUCTURE

2019 ◽  
pp. 92-101
Author(s):  
Marija Šperac ◽  
Dino Obradović
Keyword(s):  
Air Quality ◽  
Urban Environment ◽  
Air Temperature ◽  
Green Infrastructure ◽  
Land Surface ◽  
Urban Areas ◽  
Hydrological Cycle ◽  
Urban Environments ◽  
Land Surfaces ◽  
Selection Of

The urbanization process significantly reduced the permeability of land surfaces, which affected the changes of runoff characteristics and the relations in the hydrological cycle. In urban environments, the relationships within the hydrological cycle have changed in quantity, in particular: precipitation, air temperature, evaporation, and infiltration. By applying the green infrastructure (GI) to urban environments is beneficial for the water resources and the social community. GI has an effect on the improvement of ecological, economic, and social conditions. Using GI into urban areas increases the permeability of land surfaces, whereby decreasing surface runoff, and thus the frequency of urban floods. It also has a significant influence on the regulation of air quality, water purification, climate change impact, and the changes in the appearance of the urban environment. When planning and designing the GI, it is necessary to identify the type of GI and determine the size and location of the selected GI. Since each urban environment has its own characteristics, it is necessary to analyze them before deciding on the GI. The paper analyzed meteorological parameters (precipitation, air temperature, insolation, air humidity) affecting the selection of GI types, using the specific example of an urban environment – the City of Osijek, Croatia. Significant parameters when designing GI are operation and maintenance These parameters directly affect the efficiency of GI. The proper selection of GI and its location results in maximum gains: the reduction of land surface drainage - drainage of the sewage system, purification and retention of precipitation at the place of production, the improvement of air quality, and the improvement of living conditions in urban environments

scholarly journals GEOECOLOGICAL MAPPING OF THE PUROVSK AREA IN YAMAL-NENETS AUTONOMOUS REGION

2016 ◽  
pp. 120-125
Author(s):  
N. L. Mamaeva ◽  
S. A. Petrov
Keyword(s):  
Air Pollution ◽  
Carbon Monoxide ◽  
Urban Development ◽  
Nitrogen Dioxide ◽  
Maximum Permissible Concentration ◽  
Near Surface ◽  
Climate Conditions ◽  
Autonomous Region ◽  
Atmospheric Air ◽  
Nenets Autonomous

In the article there were calculated near-surface concentrations of pollutants in the atmospheric air of Purovsk area, Jamal-Nenets Autonomous region. The purpose was to compare these with the maximum permissible concentration. The geo-ecological maps of dispersion of substances emissions into the air were made up using the unified program for calculating the air pollution taking into account the technical characteristics of sources and emissions themselves, natural, especially climate, conditions, as well as protection urban development activities and the lay of land. The conclusions were made about the excess in the atmosphere of maximum permissible concentration of solids on carbon monoxide in Purovsk, and on nitrogen dioxide in Purovsk, as well as in Ust-Purovsk Tazovskaya Guba permafrost areas.

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