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Wyświetlanie 1-23 z 23
Tytuł:
Impact of runoff prediction on grey water footprint in a small agricultural catchment
Autorzy:
Hejduk, Leszek
Hejduk, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/108592.pdf
Data publikacji:
2019
Wydawca:
Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:
grey water footprint
water pollution level
catchment
Opis:
According to Hoekstra et al. (2011) the water footprint within a geographic area is defined as the total freshwater consumption and pollution within the boundaries of the area. The grey part of the water footprint refers to pollution and is an indicator of the water volume needed to assimilate a pollutant load that reaches a water body. It is possible then, based on the grey water footprint to estimate if the water available in a river at a particular crosssection will be sufficient to maintain a water pollution level (WPL) below 100%. The crossing of 100% indicates that the waste assimilation capacity has been fully consumed in this particular catchment. In this paper, the grey water footprint from nonpoint source pollution has been calculated based on long-term hydrometrological data for the upper part of a small agricultural catchment (area of 23.4 km2 ) (Zagożdżonka River) in central Poland. Based on land use and the amount of fertilizers applied in the catchment, together with information about the natural concentration of nitrogen and phosphorus in the river, as well as maximum acceptable concentration, the water pollution level has been calculated for actual conditions. The estimation of future runoff decreases for the considered catchment (Banasik, Hejduk 2012) has been applied in order to estimate potential future water pollution levels. The calculation shows that, even when the management practices in this catchment remain as they are, including the current extensive crop production, the WPL of 100% will be exceeded in the year 2033 (for phosphorus) and 2043 (for nitrogen) due only to the decreasing availability of water.
Źródło:
Meteorology Hydrology and Water Management. Research and Operational Applications; 2019, 7, 1; 41-46
2299-3835
2353-5652
Pojawia się w:
Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of phytoplankton communities for assessment of water quality in the Wadaslintang Reservoir in Indonesia
Autorzy:
Piranti, Agatha S.
Wibowo, Dwi N.
Powiązania:
https://bibliotekanauki.pl/articles/946893.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
algae
pollution level
Shannon-Wiener index
Storet index
water quality
Opis:
The use of phytoplankton as an indicator of water pollution is a promising tool for assessment of water quality. The purpose of this study was to determine whether diversity indices, including the species richness and diversity of phyto-plankton, could be used for reliable assessment of water quality in the Wadaslintang Reservoir in Indonesia. Surveys were conducted monthly at eight sites, from July 2019 to October 2019. Phytoplankton was collected during the day at 10:00 until approximately 15:00 in the euphotic zone. The parameters investigated were species richness and the abundance of phytoplankton, as well as water quality parameters listed in Government Regulation Number 82 of 2001. The level of pollution was represented biologically by the Shannon–Wiener diversity index and physicochemically by the STORET (storage and retrieval of water quality data) index. Moreover, the two indices were compared to determine whether a particular diversity index was more effective for assessment of this reservoir. The results showed that during the dry season, 22 taxa of phytoplankton were present, belonging to Cyanophyta, Chlorophyta, Chrysophyta, and Euglenophyta. During the wet season, 29 taxa were found, belonging to Cyanophyta, Chlorophyta, and Chrysophyta. Based on the Shannon-Wiener index and STORET index, water quality was better during the wet season than during the dry season. The results of water quality assessment using both indices were consistent, but the diversity index was a more sensitive indicator of pollution levels. Therefore, the Shannon–Wiener index is a useful tool for assessment of water quality in the Wadaslintang Reservoir.
Źródło:
Journal of Water and Land Development; 2020, 46; 170-178
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza skuteczności odmulania zbiorników wodnych Cierpisz i Kamionka jako efektywnej metody rekultywacji ekosystemów eutroficznych
Analysis of the Desludging Effectiveness of the Cierpisz and Kamionka Reservoirs as an Effective Method of the Eutrophic Ecosystems Recultivation
Autorzy:
Bartoszek, L.
Gruca-Rokosz, R.
Koszelnik, P.
Powiązania:
https://bibliotekanauki.pl/articles/1813823.pdf
Data publikacji:
2017
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
małe zbiorniki wodne
odmulanie
osady denne
poziom zanieczyszczenia
small reservoirs
desludging
bottom sediments
pollution level
Opis:
Odmulanie zbiornika jest jego jednoczesnym pogłębieniem i polega na usunięciu z jego czaszy nagromadzonych przez lata osadów dennych. Jest to najczęściej stosowana metoda rekultywacji płytkich, silnie zdegradowanych zbiorników małej retencji. Obiektami badawczymi były dwa zbiorniki małej retencji utworzone na rzece Tuszymka Duża na Podkarpaciu. Zbiornik wodny w Cierpiszu (o pojemności 22 tyś m3) powstał w roku 1953 i był poddany odmulaniu w roku 1990, natomiast zbiornik wodny w Kamionce (o pojemności 105 tyś m3) powstał w roku 1957 i został zmodernizowany oraz odmulony w roku 2007. Badania prowadzono w dwóch sezonach wegetacyjnych lat 2013 i 2014. Próbki wody i osadów dennych pobrano czterokrotnie w 2013 roku oraz pięciokrotnie w 2014 roku z 2 stanowisk badawczych na zbiorniku Cierpisz i 3 stanowisk badawczych na zbiorniku Kamionka. Zarówno w zbiorniku Kamionka, jak i w zbiorniku Cierpisz pomimo zaawansowanej eutrofizacji wód osady denne były bardzo ubogie pod względem zawartości materii organicznej, fosforu i azotu. Również zanieczyszczenie osadów metalami ciężkimi było umiarkowane i za wyjątkiem kadmu, chromu i ołowiu nie przekraczało tła geochemicznego. Ogólnie niska zawartość fosforu i materii organicznej nie wskazuje na możliwość występowania zasilania wewnętrznego toni wodnej i wpływu osadów na postęp procesu eutrofizacji w obu zbiornikach. Ilość nagromadzonych substancji w osadach obu zbiorników była nieco zróżnicowana i nie było to powiązane z okresem odmulania, lecz z oddziaływaniem antropogenicznym zlewni i warunkami hydrologicznymi.
Reservoir desludging is its simultaneous deepening and involves the removal of the accumulated over the years sediments from the bowl. It is the most commonly used method of recultivation of the shallow, strongly degraded small retention reservoirs. Two small retention reservoirs created on the river Tuszymka Duża (Sub-Carpathian region) were the research objects. The reservoir in Cierpisz (with a capacity of 22,000 m3) was formed in 1953 and was subjected to desludging in 1990, whereas the reservoir in Kamionka (with a capacity of 105,000 m3) was formed in 1957 and modernized and dredged in 2007. The research was conducted in two vegetation seasons the years 2013 and 2014. The samples of water and sediments were collected four times in 2013 and five in 2014 from 2 stations on the Cierpisz reservoir and 3 stations on the Kamionka reservoir. The sediments both of Kamionka and Cierpisz reservoirs despite the advanced eutrophication were very poor in terms of organic matter, phosphorus and nitrogen contents. Also, contamination of the sediments with heavy metals was moderate and except for cadmium, chromium and lead did not exceed the geochemical background. Generally, low content of phosphorus and organic matter does not indicate possibility of the occurrence of the internal supply of the water column and the sediment impact on the progress of eutrophication in both reservoirs. The amount of the accumulated substances in the sediments of the two reservoirs was slightly differentiated, and it was not related to the period of the desludging, but with the anthropogenic impact of the catchment and hydrological conditions.
Źródło:
Rocznik Ochrona Środowiska; 2017, Tom 19; 600-617
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potential for recultivation and for development of mariculture in Jamno Lake through flushing in with sea water
Autorzy:
Piesik, Z.
Powiązania:
https://bibliotekanauki.pl/articles/85127.pdf
Data publikacji:
1998
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
recultivation method
mariculture
Lake Jamno
freshwater lake
lake
organic bottom sediment
eutrophication level
pollution level
sea water
fishery
recreation
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 1998, 02
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variability of morphometric leaf traits in small-leaved linden [Tilia cordata Mill.] under the influence of air pollution
Autorzy:
Kosiba, P
Powiązania:
https://bibliotekanauki.pl/articles/59075.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
bioindicator
morphometry
biometric analysis
air pollution
metal content
Tilia cordata
variability
botany
leaf parameter
leaf
small-leaved linden
pollution level
environment pollution
Opis:
The study concerns the ecological responses of Tilia cordata Mill. to pollution and describes the advantages of estimating of the degree of environmental pollution. The aim was, to find out whether the degree of pollution conforms to the contents of the investigated elements in leaves, the assessment of variability of morphometric leaf traits and the cationic equilibrium values. The study has shown a statistically significant differentiation between the analysed sites in respect of dust fall, concentrations of elements in soils and leaves, morphometric traits of leaves and the cationic equilibrium. The hierarchical tree plot of cluster analysis qualified the sites as polluted and non-polluted. In polluted sites the contents of metals in leaves were significantly higher and the cationic equilibrium in leaves was disturbed. The surface, width and asymmetry of leaves, and also the variability of these measures were higher in polluted sites. In sites, which are not directly affected by pollution the cationic equilibrium is close to the const. value, whereas leaf traits have shown the lowest values and a considerably lower variability. The investigations show that leaf traits and cationic equilibrium correspond to the level of pollution and can be used as a tool for evaluation of the environment status.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temporal Patterns of Quality Surface Water Changes
Autorzy:
Mitryasova, Olena
Pohrebennyk, Volodymyr
Salamon, Ivan
Oleksiuk, Alina
Mats, Andrii
Powiązania:
https://bibliotekanauki.pl/articles/1839615.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
surface water quality
water security
hydrochemical indicators
level of pollution
resistance degree of pollution
Inhulets river
Opis:
The dynamics of hydrochemical parameters of surface waters from the upper, middle and lower reaches of the river was analyzed. On the basis of the analysis of temporal and spatial monitoring data, a comprehensive assessment of the environmental status of the Inhulets river (Ukraine) waters by hydrochemical indicators was carried out. The study performed a comparative analysis of the river water quality assessment using different methods: an integrated assessment based on the calculation of water pollution indexes, pollution rate. A result of the evaluation of water quality in certain classes: in terms of ammonium ions and BOD5 – III quality class, the water is slightly polluted; phosphate content – V quality class, water is very low in the bottom; according to the content of suspended solids, in phosphates and BOD5 – III class of water quality, water is polluted; by a concentration of chlorides – V class of quality, degree of purity – very dirty; the value of suspended solids and chlorides – III class; in terms of the sulfate content – IV class. In general, the very excessive concentration of substances in the middle course remains stable, the environmental state is poor (quality class IV).
Źródło:
Journal of Ecological Engineering; 2021, 22, 4; 283-295
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparative study of the performance of a low heat rejection engine with three different levels of insulation with vegetable oil operation
Studium porównawcze osiągów silnika o małych stratach ciepła, napędzanego olejem roślinnym, przy trzech różnych poziomach izolacji cieplnej
Autorzy:
Murali Krishna, M.V.S.
Janardhan, N.
Murthy, P.V.K.
Ushasri, P.
Sarada, N.
Powiązania:
https://bibliotekanauki.pl/articles/139714.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
olej lniany surowy
silnik
małe straty ciepła
moc silnika
LHR-1
LHR-2
LHR-3
poziom zanieczyszczenia
charakterystyka spalania
crude linseed oil
engine
low heat rejection
engine performance
pollution level
combustion characteristics
Opis:
Investigations were carried out to evaluate the performance of a low heat rejection (LHR) diesel engine consisting of different versions, such as ceramic coated cylinder head engine-LHR-1-Air gap insulated piston and air gap insulated liner-LHR-2- and Ceramic coated cylinder head, air gap insulated piston and air gap insulated liner -LHR-3 with degrees of insulation with normal temperature condition of linseed oil with varied injection pressure. Performance parameters were determined at various magnitudes of brake mean effective pressure. Pollution levels of smoke and oxides of nitrogen (NOx) were recorded at the peak load operation of the engine. Combustion characteristics of the engine were measured with TDC (top dead centre) encoder, pressure transducer, console and special pressure-crank angle software package. Conventional engine (CE) showed deteriorated performance, while LHR engine showed improved performance at recommended injection timing of 27 degrees bTDC and recommend injection pressure of 190 bar with vegetable oil operation, when compared with CE with pure diesel operation. Peak brake thermal efficiency increased by 14%, smoke levels decreased by 10% and NOx levels increased by 30% with LHR engine at an injection pressure of 270 bar when compared with pure diesel operation on CE at manufacturer's recommended injection timing.
Wykonano badania mające na celu ocenę osiągów silnika wysokoprężnego o małych stratach ciepła (Low Heat Rejection, LHR). Badano różne wersje izolacji cieplnej, takie jak głowica cylindra z powłoką ceramiczną (LHR-1), tłok i tuleja cylindra izolowane szczelinami powietrznymi (LHT-2), głowica cylindra z powłoką ceramiczną oraz tłok i tuleja cylindra izolowane szczelinami powietrznymi (LHR-3). Badania wykonano dla różnego stopnia izolacji, w normalnych warunkach temperaturowych, przy różnych ciśnieniach wtrysku paliwa (oleju lnianego). Parametry robocze wyznaczono dla różnych wartości ciśnienia użytecznego. Poziomy zanieczyszczeń dymem i tlenkami azotu (NOx) były mierzone w warunkach szczytowego obciążenia silnika. Przy pomiarze charakterystyk spalania silnika wykorzystano koder TDC (górnego martwego punktu), przetwornik ciśnienia, konsolę i specjalny pakiet programowy do wyznaczania zależności ciśnienie - kąt obrotu wału korbowego. Silnik konwencjonalny (CE), napędzany czystym olejem dieslowskim, wykazywał gorsze działanie. W porównaniu z nim, sinik o małych stratach ciepła (LHR), napędzany olejem roślinnym, miał lepsze parametry robocze przy zalecanym kącie wyprzedzenia wtrysku 27 stopni przed GMP i zalecanym ciśnieniu wtrysku 190 bar. Dla silnika typu LHR z optymalnym kątem wyprzedzenia wtrysku i przy maksymalnym zasysaniu etanolu, szczytowa sprawność cieplna była większa o 18%, poziom zawartości dymu mniejszy o 48%, a zawartość tlenków azotu mniejsza o 38% w porównaniu z silnikiem konwencjonalnym (CE), z czystym paliwem dieslowskim, przy zalecanym przez producenta kącie wyprzedzenia wtrysku.
Źródło:
Archive of Mechanical Engineering; 2012, LIX, 1; 101-128
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rozpoznanie stopnia skazenia chromem gleb i wod w okolicy skladowiska odpadow garbarskich k.Lubartowa [Polska]
The estimation of chrominum contamination degree of soil and water in the vicinity of tannery waste lagoon near Lubartow (Poland)
Autorzy:
Stepniewska, Z
Bucior, K.
Powiązania:
https://bibliotekanauki.pl/articles/1630455.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Polska
Lubartow
gleby
skazenia gleby
skazenia wod
stopien skazenia
odpady przemyslowe
odpady garbarskie
skladowiska odpadow
metale ciezkie
chrom
Polska
Lubartow town
soil
soil pollutant
water pollutant
pollution level
industrial waste
tannery waste
waste landfill
heavy metal
chromium
Opis:
Publikacja przedstawia skażenie gleby, wód i roślin przez chrom w okolicy składowiska odpadów garbarskich w Lubartowie. Przez ponad 20 lat odpady z garbarni zawierające duże ilości chromu były składowane w niezabezpieczonym wyrobisku piaskowym, które leży tuż przy rzece Wieprz. Wyniki naszych badań porównane są z wynikami raportów z początku lat 90 dotyczących skażenia chromem okolicy Lubartowa. Przedstawione jest porównanie dwóch metod określania stężenia chromu w glebie. Wyniki pokazują, że okolica składowiska odpadów jest wciąż skażona i wymaga poważnego programu oczyszczenia jej i przywrócenia do stanu przed składowaniem odpadów.
The article presents contamination of soil, water and plant with chrominum in the vicinity of tannery waste lagoon in Lubartow. reach in chrominum wastes from the tannery have been gathered for more than 20 years in usealed basin which was situated close to the Wieprz river.results of our investigations are compared with reports on chrominum contamination of the same object but coming from early nineties. Two methods of total chrominum determination in soils are compared. The results show that the area of waste disposal is still contaminated and a serious remediation program is needed.
Źródło:
Acta Agrophysica; 1999, 22; 187-197
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Atmospheric Air Pollution with Tropospheric Ozone on the Example of Selected Rural Villages of the Lubelskie Region
Autorzy:
Zuśka, Zbigniew
Baranowska, Alicja
Skowera, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/123989.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
tropospheric ozone
air pollution
acceptable level
Opis:
In excessive concentrations, the tropospheric ozone (the so-called trioxygen O3) constitutes a serious threat to the ecosystems of our planet. It is a threat to the health and life of people. In plants, it contributes to disruption of the most important biochemical processes. The purpose of this study was to assess atmospheric air pollution with tropospheric ozone in selected rural villages of the Lubelskie region in the years 2015–2017. Assessment of air quality in the Lubelskie region in terms of the content of tropospheric ozone, which is significant for the protection of plants and human health, was carried out in accordance with the Regulation of the Minister of Environment of 24 August 2012 on the levels of certain substances in the air, as well as more restrictive guidelines of the World Health Organization. The research used the hourly values of automatic measurements of the tropospheric ozone immission in the years 2015–2017. The data originated from three measurement stations, which function as part of the Air Quality Monitoring System, in three rural communes located in the north-western, central and southern part of the Lubelskie region. As a result of implemented research, no tropospheric ozone concentrations exceeding the threshold values, at which the public should be informed about the risk of exceeding the alarm level, were noted. The highest mean tropospheric ozone immission was recorded during the calendar summer and calendar spring, while the lowest was recorded during the calendar winter and autumn. In terms of human health protection, the largest exceedances of the maximum mean 8-hour value of tropospheric ozone were recorded during the calendar summer at Florianka station, which was located at the highest position (270 m above sea level) in relation to other measurement stations covered by this study. In terms of plant protection, the mean tropospheric ozone concentration, expressed with the use of AOT40, did not exceed the applicable target level (18 000 μg∙m-3∙h) at any of the measurement stations. The highest mean value of AOT40 was recorded at the Florianka meteorological station (14 653.9 μg∙m-3∙h), while the lowest was recorded at the Jarczew station (7 486.2 μg∙m-3∙h).
Źródło:
Journal of Ecological Engineering; 2019, 20, 10; 233-240
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anatomy of abscission zone of Betula pendula (Roth.) leaves from trees growing under different levels of pollution
Autorzy:
Dobrowolska, I.
Kurczynska, E.U.
Dmuchowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/41148.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
pollution
abscission zone
Betula pendula
industrial pollution
growing
tree
anatomy
birch
leaf
different level
Opis:
A study was carried out on the leaf abscission zone from birch trees growing on polluted sites (two) and a non-polluted site (one). Samples for anatomical investigation were collected from six trees on each site, during three succeeding vegetation seasons. It was observed that in trees growing at the polluted sites: 1) maturation of the abscission zone was faster, 2) the protective layer was thinner and 3) the formation of leaf scar periderm was delayed in comparison with trees from the non-polluted site. The results obtained suggest that environmental pollution influences the formation of the abscission zone and the protection of the leaf scar.
Źródło:
Dendrobiology; 2001, 46
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of trace elements pollution in snow piles removed from residential areas in Perm, Russia
Autorzy:
Ushakova, Evgeniya
Menshikova, Elena
Karavaeva, Tatiana
Puzik, Alexey
Volkova, Margarita
Vaganov, Sergey
Powiązania:
https://bibliotekanauki.pl/articles/2203544.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
contamination level
de-icing agents
phytotoxicity
pollution sources
snow quality
Opis:
Atmospheric deposition, vehicular transportation and de-icing agents are major sources polluted snow in urban. This study investigates the current trace elements concentrations of snow and de-icing using ICP-MS, and phytotoxicity using three vascular plants in snow. The study assesses the contamination, classification and phytotoxicity of snow quality removed from roads of residential areas and piled on children’s playgrounds in residential territories. The research found that according to Russian environmental quality standard for water has been identified the exceeding trace elements in snow by W, Se, Mn, Cu, V, Mo, Ni and Zn. The pollution indices (PLI, CF and Zc) were identified pollution level of snow piles from moderate contamination to very high contamination. Based on average germination index values for Sinapis alba L., Lepidium sativum L., and Triticum aestivum L., the degree of inhibition in snow piles varied from no inhibition to strong inhibition. The trace elements content in de-icing “Galit А” and salt sand mix are defined in the following descending order: Zn > Mn > Ba > V > Rb > Sr and Mn > Ba > Cr > V > Sr > Ni, respectively. High concentrations of trace elements in snow piles are a source of environmental pollution. To prevent snow storage and disposal in residential areas should be involved in future studies of environmental pollution and circular economy, so that environmental managers can reduce threats to the environment and public health, as well as initiate circular economy projects in urban areas.
Źródło:
Journal of Water and Land Development; 2023, 56; 109--117
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hałas w szkołach (1) - przegląd badań
Noise at school - a review of research (1)
Autorzy:
Augustyńska, D.
Radosz, J.
Powiązania:
https://bibliotekanauki.pl/articles/179947.pdf
Data publikacji:
2009
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
hałas
zagrożenie hałasem
poziom hałasu
badania
noise
noise pollution
noise level
testings
Opis:
W pierwszej części artykułu przedstawiono przegląd wybranych badań hałasu w szkołach podstawowych polskich i zagranicznych. Badania wykazały niekorzystny stan warunków akustycznych w szkołach polskich.
This article presents a review of research on noise at primary schools in Poland and abroad. It shows that the acoustic conditions in Polish schools are bad.
Źródło:
Bezpieczeństwo Pracy : nauka i praktyka; 2009, 9; 16-19
0137-7043
Pojawia się w:
Bezpieczeństwo Pracy : nauka i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza oddziaływań akustycznych i świetlnych z projektowanego osiedla domów jednorodzinnych
Acoustic analysis of impacts and lights from the planned residential houses
Autorzy:
Szczepańska-Rosiak, E.
Żuchowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/362701.pdf
Data publikacji:
2016
Wydawca:
Instytut Fizyki Budowli Katarzyna i Piotr Klemm
Tematy:
akustyka środowiska
poziom dźwięku
dopuszczalny poziom hałasu
oświetlenie
zanieczyszczenie światłem
environmental acoustics
sound level
permissible sound level
illumination
light pollution
Opis:
Zgodnie z obecnie obowiązującym prawem podczas wprowadzania inwestycji budowlanej do środowiska jej skala, zastosowane rozwiązania projektowe oraz technologia realizacji obiektu mogą podlegać ocenie środowiskowej. Artykuł przedstawia analizę prognozowanego oddziaływania hałasu i światła, jakie może się pojawić w trakcie codziennej eksploatacji budynków mieszkalnych na obszarze całego osiedla oraz na terenach z nim sąsiadujących. W tym celu wykorzystano dostępne narzędzia komputerowe przy pomocy, których opracowano model sytuacji dla projektowanego osiedla a na jego podstawie, przeprowadzono symulacje przedstawiające rozkład światła i pola akustycznego w sąsiedztwie analizowanego osiedla domów jednorodzinnych.
Under current law, when entering a construction project to the environment, its scale and the applied design solutions and technology implementation shall be subject to peer review. This article presents a reference to the applicable acoustic requirements concerning the environment. The paper presents the acoustic analysis of the forecasted impact that may arise during the particular phases of construction works and after the completion of the project, during everyday exploitation of the buildings in the whole housing estate. The research part of the paper comprises the analysis of noise impact on the protected areas neighboring with the project in view of the scope and methods of the construction works carried out under the schedule. For this purpose, in the program Soundplan, model variants of the construction works were worked out as well as the target situation, where after the simulations of the distribution of the acoustic field in the vicinity of the project were carried out.
Źródło:
Fizyka Budowli w Teorii i Praktyce; 2016, T. 8, nr 4, 4; 29-36
1734-4891
Pojawia się w:
Fizyka Budowli w Teorii i Praktyce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial traffic noise pollution assessment – A case study
Autorzy:
Monazzam, Mohammad R.
Karimi, Elham
Abbaspour, Majid
Nassiri, Parvin
Taghavi, Lobat
Powiązania:
https://bibliotekanauki.pl/articles/2177360.pdf
Data publikacji:
2015-05-13
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
noise pollution
equivalent sound level
noise sensitive centers
GIS
traffic-induce noise
vehicle traffic
Opis:
Objectives Spatial assessment of traffic noise pollution intensity will provide urban planners with approximate estimation of citizens exposure to impermissible sound levels. They could identify critical noise pollution areas wherein noise barriers should be embedded. The present study aims at using the Geographic Information System (GIS) to assess spatial changes in traffic noise pollution in Tehran, the capital of Iran, and the largest city in the Middle East. Material and Methods For this purpose, while measuring equivalent sound levels at different time periods of a day and different days of a week in District 14 of Tehran, wherein there are highways and busy streets, the geographic coordination of the measurement points was recorded at the stations. The obtained results indicated that the equivalent sound level did not show a statistically significant difference between weekdays, and morning, afternoon and evening hours as well as time intervals of 10 min, 15 min and 30 min. Then, 91 stations were selected in the target area and equivalent sound level was measured for each station on 3 occasions of the morning (7:00–9:00 a.m.), afternoon (12.00–3:00 p.m.) and evening (5:00–8:00 p.m.) on Saturdays to Wednesdays. Results As the results suggest, the maximum equivalent sound level (Leq) was reported from Basij Highway, which is a very important connecting thoroughfare in the district, and was equal to 84.2 dB(A), while the minimum equivalent sound level (Leq), measured in the Fajr Hospital, was equal to 59.9 dB(A). Conclusions The average equivalent sound level was higher than the national standard limit at all stations. The use of sound walls in Highways Basij and Mahallati as well as widening the Streets 17th Shahrivar, Pirouzi and Khavaran, benchmarked on a map, were recommended as the most effective mitigation measures. Additionally, the research findings confirm the outstanding applicability of the Geographic Information System in handling noise pollution data towards depicting noise pollution intensity caused by traffic.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2015, 28, 3; 625-634
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of local exhaust systems to reduce pollution concentration near the road
Autorzy:
Biliaiev, Mykola
Pshinko, Oleksandr
Rusakova, Tetiana
Biliaieva, Viktoriia
Sładkowski, Aleksander
Powiązania:
https://bibliotekanauki.pl/articles/1841237.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
automobile transport
pollution concentration
two-level exhaust system
transport samochodowy
stężenie zanieczyszczeń
dwupoziomowy układ wydechowy
Opis:
In this study, the methodological foundations of the technology for the local reduction of chemical pollution from vehicles were improved through the use of twolevel suction units and guide plates of various lengths installed on the nozzles of the suction devices. A program has been developed for the numerical calculation of the carbon monoxide concentration field for evaluating the efficiency of using two-level exhaust systems with different lengths of guide plates on the gas flow selection pipes. The solution of the equations of hydrodynamics and mass transfer is carried out on the basis of finite-difference methods. A number of physical and computational experiments have been carried out; it has been established that the concentration of carbon monoxide in the zone of two-level suctions location decreases by 46-68%.
Źródło:
Transport Problems; 2020, 15, 4, cz. 1; 137-148
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heavy Metal Contamination in Sediments and Its Potential Ecological Risks in Youtefa Bay, Papua Province, Indonesia
Autorzy:
Hamuna, Baigo
Wanimbo, Efray
Powiązania:
https://bibliotekanauki.pl/articles/1955507.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ecological risk
pollution load index
geo-accumulation index
contamination factor
threshold effect level
Youtefa Bay
Opis:
This study aimed to analyze the heavy metal contamination in sediments and their potential ecological risks. The sediment samples were collected using PVC pipes and grab samplers at nine study sites in Youtefa Bay, namely five sites in the mangrove ecosystem, two sites in the estuary, and two sites in the middle of the bay. The heavy metal content was analyzed using Atomic Absorption Spectrophotometry. The results of the analysis of the heavy metal content in the sediment were in the following order: Zn > Cu > Pb > Ni > Cr > Cd > As > Hg (106.077±98.857, 28.553±30.505, 19.798±11.541, 17.665±11.457, 12.103±0.124, 2.996±1.235, 0.149±0.124, and 0.082±0.047 mg kg-1, respectively). Only the Cd content has exceeded the Threshold Effect Level (TEL) at all study sites. On the other hand, the As and Cr content has not exceeded TEL at any study site. The content of Hg, Cr, Pb, Zn, and Ni has exceeded TEL only at a few study sites. The heavy metal content in estuary sites is higher than in mid-bay and mangrove sites, which can provide the information on the sources of heavy metal contaminants. There is a significant correlation for the content of Cu, As, Pb, Cd, Zn, and Ni which can indicate that the sources of these heavy metals are relatively the same (r = 0.569 to r = 0.950). The CF and Igeo values indicate that there has been contamination of several heavy metals studied. Further analysis ( ERI ) showed that the heavy metal content in the sediments poses a potentially serious ecological risk. Most of the potential ecological risks are the contribution of Cd and Hg which have high toxicity factors and this should receive special attention from local governments and stakeholders to prevent higher contamination.
Źródło:
Journal of Ecological Engineering; 2021, 22, 8; 209-221
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of green space to reduce the acoustic load on highway in a residential area of the city of Bryansk
Wpływ obszarów zielonych na redukcję obciążenia hałasem od autostrady osiedla mieszkaniowego w Briańsku
Autorzy:
Timko, I.
Gorodkov, A.
Powiązania:
https://bibliotekanauki.pl/articles/2068019.pdf
Data publikacji:
2015
Wydawca:
Politechnika Częstochowska
Tematy:
level of the noise
acoustic measure
acoustic pollution
green areas
poziom hałasu
pomiar akustyczny
zanieczyszczenie akustyczne
tereny zielone
Opis:
This article discusses the role of green space in reducing the noise level on the example of the park named of honor of Gaidukov in the city of Bryansk. The results of measuring the level of noise in spring and summer, as well as schemes prepared with the application of contour noise were presented.
W artykule omówiono rolę zieleni na zmniejszenie poziomu hałasu na przykładzie parku w mieście Briańsk. Pomiary poziomu hałasu wykonano w okresie wiosennym i letnim, przygotowano schemat z zastosowaniem krzywej hałasu.
Źródło:
Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo; 2015, 21 (171); 340--345
0860-7214
Pojawia się w:
Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A System for Measuring Vertical Concentration Profiles of Gaseous Pollutants, Using Carbon Dioxide as a Case Study
Autorzy:
Micallef, A.
Deuchar, C. N.
Colls, J. J.
Powiązania:
https://bibliotekanauki.pl/articles/91042.pdf
Data publikacji:
1998
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
concentration gradient
spatial distribution
multi-level sampling
human exposure
indoor-outdoor air pollution
gradient stężenia
rozkład przestrzenny
zanieczyszczenia gazowe
Opis:
An electronically-controlled sampling system, characterised by its organ pipe design, has been developed for sampling air sequentially, at different heights within the breathing zone. Data are automatically logged at the different receptor levels, for the determination of the average vertical concentration profile of gaseous pollutants. The system has been coupled to a carbon dioxide monitor and used in a brief study of the spatial and temporal variation of indoor carbon dioxide concentration. The system can easily be extended for different heights or modified for use with other types of gas monitor. The results of a trial run, which was carried out in a coffee room, are presented and applications of the Organ Pipe Sequential Sampling (OPSS) system are discussed.
Źródło:
International Journal of Occupational Safety and Ergonomics; 1998, 4, 3; 333-346
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effects of uninsulated sewage tanks on groundwater. A case study in an eastern Hungarian settlement
Oddziaływania nieizolowanych zbiorników ściekowych na wody gruntowe. Przykład osiedla ze wschodnich Węgier
Autorzy:
Mester, T.
Szabo, G.
Bessenyei, E.
Karancsi, G.
Barkoczi, N.
Balla, D.
Powiązania:
https://bibliotekanauki.pl/articles/946930.pdf
Data publikacji:
2017
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
ammonium
groundwater contamination
groundwater level
modelling
pollution
wastewater
jony amonowe
modelowanie
poziom wód gruntowych
ścieki
zanieczyszczenie
zanieczyszczenie wód gruntowych
Opis:
In our study we attempt to demonstrate the effects of uninsulated sewage tanks, which are the most important sources of contamination in settlements without sewage systems, on groundwater quality. We compared the results of measurements carried out before and one and a half years after the construction of the sewage system. We established 3 m deep monitoring wells within a 25 m radius of a sewage tank, which were then sampled, and the level of groundwater was recorded. The 3D model constructed on the basis of the saturated zone shows that the effluent wastewater formed a groundwater level dome with a height of more than 1 m. After the sewage tank was taken out of use the difference between the highest and lowest groundwater levels decreased to a few centimetres. In our study we investigated the spatial distribution of NH4 + (ammonium). Using the 3D model we were able to precisely determine the volume of water bodies with different levels of contamination. In an approximately 25 m3 water body, in the immediate environment of a sewage tank in use we detected NH4 + at a concentration which was characteristic of undiluted wastewater (>90 mg∙dm–3). After the sewage tank was taken out of use, the concentration in its immediate environment decreased by more than 50%, although almost everywhere in the modelled area concentrations were measured above the limit value. Based on the above, we can conclude that the cleaning process has started, but the complete decontamination of the groundwater will take several years.
W pracy podjęto próbę wykazania wpływów nieizolowanych zbiorników ściekowych, które są głównym źródłem zanieczyszczenia w osiedlach pozbawionych kanalizacji, na jakość wód gruntowych. Porównano wyniki pomiarów prowadzonych przed i półtora roku po zbudowaniu systemu kanalizacyjnego. W promieniu 25 m od zbiornika ściekowego zainstalowano studzienki o głębokości 3 m, z których pobierano próbki i mierzono w nich poziom wód gruntowych. Na podstawie trójwymiarowego modelu zbudowanego ze znajomością strefy saturacji stwierdzono, że wypływające ścieki uformowały wypukłe zwierciadło wód gruntowych o wysokości ponad 1 m. Po wyłączeniu zbiornika ścieków z eksploatacji różnica pomiędzy najwyższym i najniższym poziomem wód gruntowych zmalała do kilku centymetrów. W przedstawionych badaniach analizowano przestrzenne rozmieszczenie jonów amonowych (NH4 +). Stosując trójwymiarowy model można było precyzyjnie określić objętość wody o różnym stopniu zanieczyszczenia. W 25 m3 wody w bezpośrednim otoczeniu używanego zbiornika ściekowego wykryto jony amonowe w stężeniu typowym dla nierozcieńczonych ścieków (>90 mg∙dm–3). Po wyłączeniu zbiornika z eksploatacji stężenie to zmalało o ponad 50%, choć niemal wszędzie nadal przekraczało dopuszczalne normy. Na podstawie uzyskanych wyników można wnioskować, że proces oczyszczania został rozpoczęty, ale całkowita dekontaminacja zajmie kilka lat.
Źródło:
Journal of Water and Land Development; 2017, 33; 123-129
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Heterogeneous Road Traffic Noise in Nagpur
Autorzy:
Lokhande, S. K.
Pathak, S. S.
Kokate, P. A.
Dhawale, S. A.
Bodhe, G. L.
Powiązania:
https://bibliotekanauki.pl/articles/176717.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
traffic noise
FHWA
Federal Highway Administration
TNM
Traffic Noise Model
Prediction Model
LAeq,T
a-weighted time-average sound level
noise pollution
Opis:
The objective of the study is to assess the noise scenario and evaluate prediction model for heterogeneous traffic conditions. In the past few years, road traffic of Nagpur has increased significantly due to the rapid increase in the number of vehicles. Noise levels are monitored at six different squares, characterized as interrupted traffic flow due to traffic signals, high population density and heavy traffic where the major sources of noise are engines, exhausts, tires interacting with the road, horns, sound of gear boxes, breaks, etc. The A-weighted time-average sound levels (LAeq, T) are measured at the different time of day during peak and off-peak traffic hours. To assess the traffic noise more precisely, the noise descriptors such as L10, L50, L90, LAeq, T, TNI (Traffic Noise Index), NPL (Noise Pollution Level) and NC (Noise Climate) are used. In the present study, the Federal Highway Administration (FHWA) noise prediction model is used for prediction of noise levels and it is observed that one-hour duration measured LAeq, T ranged from 71 to 76 dB(A) and 71.6 to 76.3 dB(A) during peak and off peak hours respectively. Due to the heavy traffic the peak hour Sound Exposure Levels (LAE) at all locations are exceeding permissible limit of 70 dB(A) prescribed by the World Health Organization (W.H.O). Off-peak traffic hour noise levels are within permissible limit except at two locations, Jagnade and HB town square. Significant correlation was obtained when best fit lines generated between measured and predicted values gives R2 of 0.455 for all time intervals. Chi-Square test (X2) was also computed to investigate the noise levels at different squares. The results show that the inhabitants of Nagpur city are exposed to high transportation noise during daytime.
Źródło:
Archives of Acoustics; 2018, 43, 1; 113-121
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Emisja stałych cząstek z liniowych źródeł zanieczyszczenia jako główny czynnik wpływający na poziom stężenia pyłu zawieszonego PM10, PM2,5, PM1,0 w powietrzu atmosferycznym aglomeracji warszawskiej
Emissions of Solid Particles from Linear Sources of Pollution as a Major Factor in the Level of Concentration of PM10, PM2.5, PM1.0 in Ambient Air of Warsaw Agglomeration
Autorzy:
Dmochowski, D.
Dmochowska, A.
Biedugnis, S.
Powiązania:
https://bibliotekanauki.pl/articles/1818580.pdf
Data publikacji:
2015
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
emisja pyłów ze źródeł liniowych zanieczyszczenia
stężenie pyłu PM10
PM2.5
PM1.0
dust emissions from linear sources of pollution
level concentrations of PM10
Opis:
The paper presents the results of the research into the dust from the linear sources of pollution emitted close to the right-bank Warsaw allotments. The results of dust measurements and its fraction show that the legal limits of the concentration of dusts floating in the atmospheric air for the measurement points are exceeded. The points are located in the nearest distance from Trasa Łazienkowska and alley Waszyngtona – two busy roads in the right-bank Warsaw. The results show that the dust and its fractions can pose the ecological safety hazards and can constitute a significant reduction of health safety of both allotments users and local residents.
Źródło:
Rocznik Ochrona Środowiska; 2015, Tom 17, cz. 2; 1403-1412
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contamination of soil with heavy metals drained out from abandoned mines in the South-West region of Korea
Autorzy:
Kim, S.-D.
Dho, H.-S.
Lee, S.-J.
Powiązania:
https://bibliotekanauki.pl/articles/207493.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
soil pollution
abandoned mines
arsenic
heavy metals
nickel
soils
zinc
contamination level
forest regions
surface soil
zanieczyszczenie gleby
zlikwidowane kopalnie
arsen
metale ciężkie
nikiel
gleby
cynk
poziom zanieczyszczeń
obszary leśne
powierzchniowe warstwy gleby
Opis:
Contamination of soil with heavy metals drained out from twenty eight abandoned mines in the southwest regions of Korea has been investigated. Utilizing various statistical techniques, the goal was to evaluate and analyze pH and the contamination with Arsenic, and the following six heavy metals: cadmium, hydrargyrum, lead, nickel, chromium, and zinc. Contamination levels of heavy metals were determined depending on the depth of the soil. Results indicated that the subsoil and the surface soil both were strongly contaminated with lead and arsenic. Furthermore, the subsoil also contained much nickel. In forest regions, high levels of lead and arsenic, whereas in all regions high levels of zinc have been detected.
Źródło:
Environment Protection Engineering; 2015, 41, 3; 61-72
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Poziom życia ludności obwodu lwowskiego na Ukrainie: diagnoza stanu
Autorzy:
Petrovska, Myrosława
Pantylej, Wiktoria
Powiązania:
https://bibliotekanauki.pl/articles/763291.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
life level, average monthly salary, birth rate, death rate, unemployment rate, housing conditions, air pollution
poziom życia ludności, średnie miesięczne wynagrodzenie brutto, współczynnik urodzeń, współczynnik zgonów, poziom bezrobocia, warunki mieszkaniowe, poziom zanieczyszczenia powietrza atmosferycznego
Opis:
The categories of living conditions, life level and life quality as well as different approaches towards integral estimation of life level are analyzed in the article. Statistical estimation of life level in Lviv region of Ukraine is based on environmental, social, health, and demographic indices. The classification of administrative districts of Lviv region according to living conditions is done based on the estimation of the average indices in Ukraine and on integral estimation stimulant and destimulant indexes.
Artykuł nie zawiera abstraktu w języku polskim.
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia; 2014, 69, 2
0137-1983
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia
Dostawca treści:
Biblioteka Nauki
Artykuł
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