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    Wyświetlanie 1-6 z 6
    Tytuł:
    Initial Assessment of Changes in Water Quality in the Wrocław City Moat Reservoirs
    Autorzy:
    Kilian, Szymon
    Pawęska, Katarzyna
    Bawiec, Aleksandra
    Powiązania:
    https://bibliotekanauki.pl/articles/2173254.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    urban water reservoir
    physicochemical composition of water
    ammonium nitrogen
    total phosphorus
    city moat
    Opis:
    The aim of the research was to initially assess the changes in the physicochemical composition of water in the reservoirs of the city moat (Wrocław) in the context of the analysis of the type of pollutants flowing into the inner-city water reservoirs and in relation to the impact of air quality directly in the vicinity of the reservoirs. As an element of the urban landscape, the inner-city water reservoirs play an important role in improving the local climatic conditions, increasing the biodiversity of the landscape, and eliminating the negative impact of urban heat islands. The measurement campaign was conducted for 11 months. The following parameters were determined in the analyzed water samples: turbidity, pH, electrolytic conductivity, as well as concentrations of nitrogen forms (ammonium nitrogen, nitrite nitrogen, and nitrate nitrogen), total phosphorus and sulfates. Additionally, the air quality parameters in the direct location of the reservoirs were analyzed, including: concentrations of nitrogen oxides, nitrogen dioxide, sulfur dioxide, humidity level and selected meteorological data, i.e. daily precipitation and average daily air temperature. The average concentrations of nitrogenous forms in the waters of the downtown water reservoir were as follows: ammonium nitrogen 0.155 mg•dm-3, nitrite nitrogen 0.084 mg•dm-3, and nitrate nitrogen 1.15 mg•dm-3. The sulfate concentrations showed greater variability 67.805–180.973 mg•dm-3. On the basis of the conducted observations and analyses, a statistically significant relationship was found between the quality parameters of water in municipal water reservoirs and external factors such as air quality, and in particular the correlation of air humidity with the concentration of nitrite and nitrate ions in the water. The conducted research confirms the influence of air quality on the levels of pollutants in the waters collected in the urban water reservoir.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 7; 58--66
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Role of reservoirs of urban heat island effect mitigation in human settlements : moderate climate zone
    Autorzy:
    Sierka, Edyta
    Pierzchała, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2203578.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    climate change
    mitigation UHI
    urban area
    urban heat island
    water reservoir
    Opis:
    This paper presents the problem of the increasing negative impact of urban heat islands (UHI) on urban residents based on land surface temperature (LST). It is assumed that water bodies in the agglomeration remain cooler than the air and surrounding urban areas. The study aimed to determine the impact of water bodies and surrounding areas covered by trees on the temperature of an urban area and to minimise the impact of UHI on the life quality of people in the temperate climate zone at day temperatures 25°C (W day) and 29°C (H day). In the adopted research methodology, 167 reservoirs, larger than 1 ha, located within 300 m of urban areas, were analysed. Satellite thermal imagery, spatial land use data (Corine Land Cover), and local land characteristics were used. The average temperature of the reservoirs was appropriately at 4.69°C on W day and 1.9°C for H day lower than in residential areas. The average temperature of areas at a distance of 30 m from the reservoirs was 2.69°C higher on W and 0.32°C higher on H than the water of the reservoirs. The area covered by trees was 0.52°C lower on W day and 0.39°C lower on H day than the residential areas located at a distance of 300 m from the reservoir. On terrestrial areas, the lowest temperature was observed in the area covered by trees within 0-30 m from reservoirs both on warm and hot days. Based on the results of this study, UHI mitigation solutions can be suggested.
    Źródło:
    Journal of Water and Land Development; 2022, Special Issue; 112--118
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of point source pollutants on the distribution of selected water parameters in the Vistula River in Puławy, Poland
    Autorzy:
    Jakubiak, Mateusz
    Bojarski, Bartosz
    Powiązania:
    https://bibliotekanauki.pl/articles/2048571.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    point source pollutants
    “Rozlewisko” reservoir
    urban pollutants
    wastewater discharge
    water quality
    water monitoring
    watercourses
    Opis:
    Human activities have a complex and multidimensional impact on water quality. The concentration of inhabitants, production and services intensifies influence of urban agglomerations on water in rivers. Among many sources of surface water pollution, the most important are sewage discharges. The aim of the research was to determine the effect of point discharge of treated industrial and municipal wastewater on the distribution of selected water chemical parameters in the Vistula River in Puławy. The studies were carried out in 2018–2019. Samplings were collected in five sampling points and tested in the hydrochemical laboratory. The obtained data were statistically analysed to investigate differences between the sampling points. The negative impact of wastewater discharge on the water quality in the Vistula was found. However, the pollution level decreased with the flow of the river. The parameters tested at measurement point located 1200 m below the discharge approached the values recorded above the sewage outfall. The presented observations of changes in the concentration of pollutants indicate the self-purification capacity of a river. However, for each watercourse flowing through urbanized areas, it is an individual feature. It depends on a number of factors and requires regular monitoring studies taking into account hydrochemical analysis of watercourses.
    Źródło:
    Journal of Water and Land Development; 2021, 51; 50-55
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of water and wetland plants of the water reservoirs in the UMCS Botanical Garden in Lublin, Poland
    Charakterystyka roślin wodnych i wilgociolubnych zbiorników wodnych w Ogrodzie Botanicznym UMCS w Lublinie, Polska
    Autorzy:
    Dabrowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/27274.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    aquatic plant
    wetland
    plant species
    water reservoir
    Botanical Garden in Lublin
    urban reservoir
    river valley
    Maria Curie-Sklodowska University
    Polska
    Opis:
    The aim of the study was to compile an inventory and determine the ecological characteristics of the spontaneous flora of the restored water reservoirs and their wet banks in the western part of Lublin in the years 1997–2013. The study objects are small reservoirs located at the UMCS Botanical Garden in the Czechówka River valley. These ponds are subjected to strong anthropogenic pressure. 68 plant species from 33 families and 58 genera were recorded in the flora of the ponds and their wet banks. An important feature of the described water bodies is the large proportion of native species (94% of the flora). Cryptophytes and hemicryptophytes as well as biological groups combining the features of hemicryptophytes and cryptophytes are the predominant life forms. Perennials account for 80% of the flora. The ponds and their wet banks are inhabited by 25 medicinal and 19 bee forage plants.
    Celem pracy była inwentaryzacja i charakterystyka ekologiczna spontanicznie wykształconej flory w odtworzonych zbiornikach wodnych i ich wilgotnych brzegach w zachodniej części Lublina w latach 1997– 2013. Badane obiekty są niewielkimi zbiornikami położonymi w Ogrodzie Botanicznym UMCS w dolinie rzeki Czechówki. Stawy znajdują się pod silnym wpływem człowieka. We florze zbiorników i na ich wilgotnych brzegach odnotowano 68 gatunków roślin (z 33 rodzin i 58 rodzajów). Istotną cechą opisywanych obiektów jest duży udział gatunków rodzimych (94% flory). Wśród form życiowych dominują kryptofity i hemikryptofity oraz grupy biologiczne łączące cechy hemikryptofitów oraz kryptofitów. Byliny łącznie stanowią 80% flory. Stawy i ich bagniste brzegi stanowią miejsce występowania 25 gatunków roślin o działaniu leczniczym i 19 gatunków roślin pożytkowych dla owadów.
    Źródło:
    Acta Agrobotanica; 2014, 67, 2
    0065-0951
    2300-357X
    Pojawia się w:
    Acta Agrobotanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rainwater Management Solutions and their Impact on Shaping Inner City Areas Undergoing Transformation (Case Study of the ZAC Clichy-Batignolles Area in Paris)
    Autorzy:
    Jóźwik, Renata
    Powiązania:
    https://bibliotekanauki.pl/articles/125174.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    new urban development
    Sustainable Urban Water Management
    rainwater harvesting
    wet ditch
    biotope reservoir
    runoff ratio
    degraded areas
    Clichy-Batignolles area
    Opis:
    Proper management of rainwater in cities has a significant impact on improving the environmental conditions: the microclimate of a city by regulating the water cycle and reducing heat islands; developing of biodiversity; increasing health and well-being of residents. The aim of the article was to present the possibilities of improving the environmental conditions in compact urban development areas – those that additionally contribute to the shaping of architecture, and thus combine the ecological, functional, and aesthetic benefits. The article draws attention to the synergy of climate change and the new way of developing urban areas, which was presented on the example of specific solutions functioning on the transformed urban area: Clichy-Batignolles in central Paris – recognized as a model for environmental solutions, labelled Éco-Quartier. The mentioned conditions and solutions were related to the possibility of shaping urban form, with the obligation to discharge some or all of the rainwater on the building plot. On the basis of the calculations made for the runoff ratio in individual quarters, it was found that it is possible to maintain a compact urban structure and effectively manage rain water provided that appropriate engineering and urban solutions are applied. These solutions can have an architectural value. The conclusions from the analyses can be used to formulate guidelines for other European cities, which are increasingly faced with the problem of water scarcity and uncontrolled flooding.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 3; 209-219
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Uogólniona metoda analityczna wymiarowania przelewowych zbiorników retencyjnych ścieków deszczowych
    Generalized analytical method of overfall storm water retention reservoir sizing
    Autorzy:
    Kotowski, A.
    Wartalska, K.
    Nowakowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/236336.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
    Tematy:
    kanalizacja deszczowa
    hydrologia miejska
    modele deszczów
    retencja zbiornikowa
    storm water drainage
    urban hydrology
    precipitation model
    reservoir retention
    Opis:
    W pracy dokonano analizy metod wymiarowania przelewowych zbiorników retencyjnych ścieków deszczowych. Analizie poddano dotychczasową metodę analityczną, w której stosowany był nieaktualny już wzór Błaszczyka na natężenie jednostkowe deszczu. Na tej podstawie opracowano nową uogólnioną metodę wymiarowania zbiorników z uwzględnieniem współczesnych modeli deszczów maksymalnych. Na przykładzie zlewni hydrologicznej Wrocławia wykazano przydatność nowej metody do obliczania pojemności użytkowej zbiorników przelewowych. Porównanie wyników obliczeń pojemności zbiorników, z zastosowaniem modelu Błaszczyka i nowego modelu opadów maksymalnych we Wrocławiu wskazało na znaczne różnice, sięgające nawet 67%. Opracowane w latach 60. XX w. i utrwalone w podręcznikach zasady projektowania i metody wymiarowania odwodnień terenów zurbanizowanych – z wyjściowym wzorem Błaszczyka na natężenie jednostkowe opadów – są obecnie kontestowane jako nieodpowiednie, tzn. zaniżające wyniki obliczeń miarodajnych strumieni ścieków, a tym samym rezultaty wymiarowania sieci i obiektów kanalizacji deszczowej w Polsce. Wynika stąd pilna potrzeba zmiany metod wymiarowania sieci i obiektów kanalizacyjnych w Polsce, dostosowanych do obecnych natężeń deszczów.
    An analysis of overfall storm water reservoir sizing methodology was presented. The analytical method used currently, employing the already outdated Blaszczyk’s rainfall intensity formula, was analyzed. On the basis of this analysis, a new generalized methodology for reservoir sizing was developed, taking into account the contemporary maximum precipitation models. Based on the example of the hydrological catchment of the city of Wroclaw, suitability of the new method for calculating useful storage volume of overfall reservoirs was demonstrated. Comparison of results of tank volume calculations, based on Blaszczyk’s model and the new maximum precipitation model for Wroclaw, showed significant differences of up to 67%. Developed in the sixties of the 20th century and consolidated in the textbooks, the design rules and sizing methods for urban drainage – with the original Blaszczyk’s formula for rainfall intensity – are currently viewed as inadequate. They underestimate the results of reliable wastewater stream calculations and consequently of the outcomes of sizing storm water drainage network and its facilities in Poland. Therefore, there is an urgent need to change the methods of network and sewerage facilities sizing in Poland, so that they become adapted to the current rainfall rates.
    Źródło:
    Ochrona Środowiska; 2016, 38, 1; 45-52
    1230-6169
    Pojawia się w:
    Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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