Temat: Oil pollution - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optical properties of crude oil detected in seawater
Autorzy:: Haule, K.
Toczek, H.
Powiązania:: https://bibliotekanauki.pl/articles/245741.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: crude oil
marine ecology
fluorescence
seawater
oil pollution
Opis:: The effects of crude oils entering marine environment have been investigated since early 1960s when oil pollution became a subject of global environmental concern. Extraction and transportation of crude oils have been contributing to water pollution especially in closed water basins, such as the Baltic Sea. It was estimated that yearly oil input to the Baltic Sea amounts to 21-70 thousands of tons, which is twice higher than in the North Sea and three times higher than in the North Atlantic. Growing pollution loads into the Baltic Sea created a demand for multifarious studies on the environmental effects of oil products. In this study, we focus on bio-optical and ecological aspects of the presence of crude oil in seawater. Dispersed oil droplets occur in seawater as the result of contaminated river inflows, bilge water discharges and as the consequence of mechanical and chemical dispersion of oil spills. Their optical properties depend on oil type, concentration and size distribution. We present further results obtained from the developed fluorescence-based method for determination of the crude oil concentration in natural Baltic seawater and for evaluation of the oil droplets size by applying vacuum filtering. The results have been measured for the samples collected in Southern Baltic Sea during several ship cruises in 2012. We discuss the application of vacuum filtering in the fluorescence analyses in the context of laboratory, in situ and remote detection of dispersed oil.
Źródło:: Journal of KONES; 2014, 21, 3; 127-132
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Fluorescence properties of mechanically dispersed crude oil
Autorzy:: Haule, K.
Toczek, H.
Powiązania:: https://bibliotekanauki.pl/articles/247844.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: crude oil
marine ecology
fluorescence
seawater
oil pollution
Opis:: Despite of numerous actions undertook by the global and local authorities towards protection of marine environment, oil pollution loads into the Baltic Sea still tend to increase and need to be continuously estimated in order to apply the legal regulations. There is a demand for multifarious studies on the environmental effects of oil products. Dispersed oil droplets occur in seawater as the result of contaminated river inflows, bilge water discharges and as the consequence of mechanical and chemical dispersion of oil spills. Their optical properties depend on oil type, concentration and size distribution. Oil content influences many environmental factors, like water quality and bio-optical parameters (e.g. water-leaving radiance, inherent optical properties, seawater fluorescence). We present a unique study of the collected database of crude oil fluorescence spectra for better understanding the correlations between oil optical properties and its concentration, as well as for evaluation of the oil droplets size by the application of vacuum filtering using three filters of different permeability. Fluorescence spectra have been registered for oil-in-water emulsion samples prepared in the laboratory by mechanical dispersion. We discuss the optical properties of crude oil and the relationships between them in the context of potential remote detection of dispersed oil in seawater.
Źródło:: Journal of KONES; 2014, 21, 4; 161-167
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Spectroscopic methods in application to oil pollution detection in the sea
Autorzy:: Baszanowska, E.
Otremba, Z.
Powiązania:: https://bibliotekanauki.pl/articles/248141.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: marine transport
oil pollution
spectroscopic methods
fluorescence
time-resolved fluorescence
Opis:: The escalating maritime transport as well as offshore crude oil exploitation and pipeline transportation leads to the increase of feasibility of the discharge of petroleum substances to the sea environment events. Therefore, it is necessary to rapidly detect of oil pollution to minimize the extent of contamination in the seawater. The aim of this study is to discuss the assumptions of the optical methods using for detection of oil pollution in the seawater. We consider the different approaches of oil-in-water detection using spectral active and passive techniques with emphasis on fluorescence techniques. The intensive development of scientific apparatus and methods in light spectroscopy leads to build various airborne or underwater specialized devices (UV-, IR-scanners, fluorosensors), which allows to detect oil pollution in relatively large areas of the sea. The possibility of measurements of oil pollution in the seawater is particularly important for monitoring, especially in very difficult weather conditions and highly waved sea surface. Such possibilities should be given by devices for in-situ measurements based on time-resolved fluorescence. Such measurements allow obtaining the significant information about presence of oil in really short time. As we show in this study, the wide-range development of fluorescence techniques opens the diagnostic opportunity not only for detection of the oil-in-water content but also for identification the type of oil directly in seawater or even determination of the source of oil pollution.
Źródło:: Journal of KONES; 2012, 19, 1; 15-20
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Natural water fluorescence characteristics based on lidar investigations of a surface water layer polluted by an oil film; the Baltic cruise - Mai 2000
Autorzy:: Drozdowska, V.
Babichenko, S.
Lisin, A.
Powiązania:: https://bibliotekanauki.pl/articles/48468.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: oil pollution
surface water
fluorescence
natural sea water
Baltic Sea
lidar investigation
component
Opis:: Several sea and laboratory experiments have been carried out to detect and determine the fluorescence characteristics of seawater and its natural fluorescing components and to analyse the influence of oil in the surface water layer on the lidar-induced return signal. The aim of the laboratory investigations was to create a database of different natural water types and of water polluted with Petrobaltic oil. During the r/v ‘Oceania’ cruise in the southern Baltic Sea two lidar methods were applied simultaneously to detect and analyse the influence of the fluorescence emission of oil on the fluorescence spectrum of seawater. Detection of oil pollution can be used to correct the fluorescent factors of fluorescing components on the basis of natural seawater fluorescence spectra.
Źródło:: Oceanologia; 2002, 44, 3
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The contribution of fluorescence to measurements of light scattering in oil-in-water emulsions
Autorzy:: Stelmaszewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/48940.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: contribution
emulsion
fluorescence
light scattering
marine environment
measurement
oil pollution
oil-water emulsion
petroleum
sea water
ultraviolet radiation
Opis:: The paper presents some results of research on the fluorescence properties of petroleum oil-in-water emulsions. The research addresses the question of measuring and modelling light fields in an oil-polluted marine environment. The fluorescence of the emulsion manifests itself in the spectral range from 260 to over 400 nm and is much less intensive in the visible light region. Fluorescence is always weaker than the radiation scattered in an emulsion. The measurement and modelling of ultraviolet radiation scattering requires fluorescence to be taken into consideration, but in the visible spectral region this phenomenon is negligible.
Źródło:: Oceanologia; 2011, 53, 2
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Determination of petroleum pollutants in coastal waters of the Gulf of Gdańsk
Autorzy:: Stelmaszewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/48150.pdf
Data publikacji:: 2009
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: oil content
pollutant determination
fluorescence
coastal water
Gdansk Gulf
petroleum substance
sea water
petroleum pollution
Opis:: The paper presents an improved method of determining petroleum pollutants in water based on fluorescence, which allows the oil content to be estimated with an accuracy better than 50%. The method was used to measure the oil content in Gulf of Gdańsk seawater sampled at Gdynia-Orłowo between January 2006 and September 2008. The 174 measurements made during this period ranged from 1 to 120 μg kg−1, but the majority did not exceed 20 μg kg−1. The most probable level of contamination is c. 5 μg kg−1.
Źródło:: Oceanologia; 2009, 51, 1; 85-92
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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