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Wyświetlanie 1-15 z 83
Tytuł:
The cytotoxicity verification of the VOCs removal by means of photocatalysis
Autorzy:
Czarny, A.
Zaczyńska, E.
Hirszfeld, L.
Górniak, A.
Janicka, A.
Zawiślak, M.
Powiązania:
https://bibliotekanauki.pl/articles/2073650.pdf
Data publikacji:
2015
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
cytotoxicity
photocatalysis
volatile organic compounds
Opis:
This paper constitutes the approach to correlate the results of gas purification properties performed with aid of photocatalysis with the cytotoxicity test results. The gas purification by means of photocatalysis is a subject well known a profusely described in literature. Easiness and continence of application causes the photocatalysis to be used in variety of industries, however this paper considers only automotive industry application. The effectiveness of photocatalysis have been proven experimentally by vast number of researchers. However, the literature contains only the information about the level of volatile organic compounds identification and reduction. The toxicity measure in terms of living cells was not yet fully tested and described in literature. Therefore, the standard chromatography test which enables quantitative identification of volatile organic compounds was confronted with a cytotoxicity tests revealing the virtual toxicity of gases before and after photocatalysis.
Źródło:
Journal of Polish CIMEEAC; 2015, 10, 1; 37--44
1231-3998
Pojawia się w:
Journal of Polish CIMEEAC
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The method for stabilisation of temperature and humidity in VOC chambers
Metoda stabilizacji temperatury i wilgotności w komorach VOC
Autorzy:
Wojutyński, J.
Powiązania:
https://bibliotekanauki.pl/articles/258257.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Tematy:
volatile organic compounds
VOC
humidity
temperature
fuzzy logic
Volatile Organic Compounds
wilgotność
temperatura
logika rozmyta
Opis:
This paper presents selected issues of the design of precise control devices for the characteristics of the process environment in the VOC (Volatile Organic Compounds) chambers, in which non-standard validation tests are performed. The main parameters defining the environmental conditions are temperature and humidity. Particular attention was paid to the elimination of pollution generating sources in the background of the chamber. The module designed to control the temperature and humidity is presented. The results of the recording of temperature and humidity in several-month-long test cycles are presented. The developed modules have been used in chambers for testing the emissions of volatile organic compounds and formaldehyde.
W artykule przedstawiono wybrane zagadnienia projektowania urządzeń do precyzyjnego sterowania charakterystykami środowiska procesowego w komorach VOC (Volatile Organic Compounds), w których prowadzone są niestandardowe badania atestacyjne. Głównymi parametrami określającymi warunki środowiska jest temperatura i wilgotność. Szczególną uwagę zwrócono na eliminację źródeł generowania zanieczyszczeń w tle komory. Zaprezentowano opracowany moduł do regulacji temperatury i wilgotności. Przedstawiono wyniki rejestracji temperatury i wilgotności w kilkumiesięcznych cyklach badawczych. Opracowane moduły zostały zastosowane w komorach do badania emisji lotnych związków organicznych oraz formaldehydu.
Źródło:
Problemy Eksploatacji; 2015, 3; 65-74
1232-9312
Pojawia się w:
Problemy Eksploatacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical analysis of volatile organic compounds concentration in a e segment vehicle interior
Autorzy:
Rodak, M.
Skrętowicz, M.
Janicka, A.
Zawiślak, M.
Powiązania:
https://bibliotekanauki.pl/articles/241913.pdf
Data publikacji:
2015
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
volatile organic compounds
computional fluids dynamics
Opis:
Constantly increasing amount of cars causes significant deterioration of air quality. Emission of harmful substances such as aromatic hydrocarbons or soot has negative influence for human health, especially for the respiratory system. Pollutants from engine vehicles are emitted at the people living height and, especially in cities, could cumulated because of weak ventilation among the street canyons made by buildings and infrastructure. Dynamic development of motorization and people lifestyle make the time spent inside the car is getting longer. Fumes and other air pollutants can get into the car cabin, what is extremely dangerous for driver and passengers. The pollutants inside the vehicle can also accumulate and if cabin is not well ventilated, the concentrations of them could be really high. It cause changing the microclimate inside the car cabin and has negative influence on the people staying inside the car, such as lowering of comfort and focus of driver and health effects. Previous studies have shown that the highest concentration of most of the pollutants in the vehicle cabin is located at the height of the driver's head. Of course, it depends on many factors like type (category) of vehicle or geometry of nozzles in the ventilation system. The study aim was to define concentration of volatile organic compounds in an E segment vehicle cabin by using computational fluid dynamic simulation.
Źródło:
Journal of KONES; 2015, 22, 4; 235-241
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies of atmospheric - pressure microwave plasmas used for gas processing
Autorzy:
Mizeraczyk, J.
Jasiński, M.
Nowakowska, H.
Dors, M.
Powiązania:
https://bibliotekanauki.pl/articles/146394.pdf
Data publikacji:
2012
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
microwaves
plasma
volatile organic compounds
hydrogen
Opis:
This paper concerns the atmospheric-pressure microwave plasmas and their applications, mainly for gas processing. Several types of atmospheric-pressure microwave sources (MPSs), i.e. surface-wave-sustained MPS, nozzle-type MPSs, nozzleless MPSs, plasma-sheet MPSs and microwave microplasma sources - MmPSs (antenna- and coaxial-line- -based) as well as their performance are presented. The presented experimental results on the optimization of selected MPSs are confronted with results of the modelling of the electromagnetic field in them. The paper deals also with the applications of MPSs for the processing of gases. Two types of the plasma gas processing were experimentally tested: decomposition of volatile organic compounds (VOCs) and reforming of VOCs (mainly methane) into hydrogen. Results of the laboratory experiments on the plasma processing of several highly-concentrated (up to 100%) VOCs, including freon-type refrigerants, in the waveguide-supplied MPSs showed that the microwave discharge plasma is capable of fully decomposing the VOCs at relatively low energy cost. The use of waveguide-supplied coaxial-line-based and metal-cylinder-based nozzleless MPSs to methane reforming into hydrogen turned out to be energetically efficient. These selected results show MPSs to be an attractive tool for gas processing, including the harmful gas decomposition and production of useful gases.
Źródło:
Nukleonika; 2012, 57, 2; 241-247
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The removal of organic compounds by natural and synthetic surface-functionalized zeolites: a mini-review
Autorzy:
Muir, Barbara
Wołowiec, Magdalena
Bajda, Tomasz
Nowak, Paulina
Czupryński, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/127592.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
organo-zeolites
volatile organic compounds
surface modification
petroleum derivatives
Opis:
The use of zeolites as sorbents has been investigated as a replacement for existing costly methods of removing organic contaminants from water solutions. Zeolites can be modified by inorganic salts, organic surfactants, metals or metal oxides in order to increase their adsorption capacity. The unique ion exchange and adsorption properties of zeolites make them very suitable for application in the removal of organic compounds such as volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), phenols and other complex petrochemicals. Many different studies have demonstrated their effectiveness in reducing the concentrations of organic contaminants as well as petroleum derivatives in water, which has been summarized in this paper.
Źródło:
Mineralogia; 2017, 48, 1/4; 145-156
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cardiotoxic effect due to accidental ingestion of an organic solvent
Autorzy:
Cieślik-Guerra, Urszula I.
Rechciński, Tomasz
Trzos, Ewa
Wierzbowska-Drabik, Karina
Uznańska-Loch, Barbara
Winnicka, Renata
Krakowiak, Anna
Kasprzak, Jarosław D.
Fröhlich, Colin
Kurpesa, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2177006.pdf
Data publikacji:
2015-02-24
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
miocardial infarction
cardiotoxicity
xylene
poisoning
volatile organic compounds
toluene
Opis:
Toxic myocardial injury can be misdiagnosed as a myocardial infarction, resulting in the patient undergoing standard treatment for cardiac rehabilitation. However, such inadequate therapeutic strategies can lead to cardiovascular complications including dilated cardiomyopathy. This study presents a case of a 65-year-old man after accidental ingestion of organic solvents (toluene and xylene), whose condition demonstrated all the criteria for diagnosis of myocardial infarction. The qualitative determinations of the above mentioned volatile organic compounds (VOCs) in whole blood were carried out using a headspace sampling by means of gas chromatography. Cardiac catheterization revealed no specific coronary lesions, only a muscular bridge causing a 30–50% stenosis in the middle of the circumflex branch of the left coronary artery.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2015, 28, 1; 174-179
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving environmental odor measurements : comparison of lab-based standard method and portable odor measurement technology
Autorzy:
Maurer, D. L.
Bragdon, A. M.
Short, B. C.
Ahn, H.
Koziel, J. A.
Powiązania:
https://bibliotekanauki.pl/articles/204983.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
odor
volatile organic compounds
air quality measurements
standardization
olfactometry
Opis:
Current standard odor measurement methods are lab-based and require substantial investment in hardware, sample collection, training, and maintenance. Odor samples must be collected in the field using bags and brought to the lab to test. This can be a time-consuming process, with the possibility of the sample loss. The actual odor measurements are based on dilution olfactometry, embodied in the AC’SCENT® International Olfactometer, following the ASTM E679-04 standard. In recent years a portable olfactometer, the Scentroid SM100i, has been developed for odor measurements. The portable olfactometer has many advantages over lab-based standard method, especially the lower cost-per-sample. However, very little is known about the performance and reliability of portable olfactometer where the dilutions are controlled with orifices in metallic plates. It is important to evaluate the Scentroid SM100i accuracy to determine the usefulness of using it as a comparable technology for odor measurements. The main objective of this research is to compare the performance of the lab-based ASTM E679-04 method with portable odor measurement technology. Specific objectives include: (1) determining the accuracy of the dilution ratios specified by the manufacturer of both the AC’SCENT International Olfactometer and the Scentroid SM100i; (2) comparing results between olfactometers using n-butanol, a commonly used standard gas in the olfactometry field, and (3) determining the accuracy of odor measurement using real odor samples collected from livestock farms in Iowa. The AC’SCENT olfactometer had an average percent error between the factory specifications and measured dilution ratios of 5.23% compared with 14.1% for Scentroid SM100i (using plate i-2 with dilution range most comparable to the AC’SCENT olfactometer). The use of other dilution plates resulted in average percent errors ranging from 9.68% to 25.31%. The Scentroid SM100i deviated from the manufacturer specifications for flowrates and dilution ratios, but these flowrates were generally consistent with each dilution setting. Overall, the Scentroid SM100i overestimated the odor concentrations with the mean difference of 22.9% (ranging from 0.95% to 93.34%). When the post-measurement adjustment using dilution correction was made, the mean percent average difference was 11.8%.
Źródło:
Archives of Environmental Protection; 2018, 44, 2; 100-107
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identyfikacja związków odorotwórczych w procesach wykorzystujących surowce fosforowe
Identification of odors substances in processes using the phosphate ores
Autorzy:
Kordon, Ł.
Hoffmann, J.
Hoffmann, K.
Powiązania:
https://bibliotekanauki.pl/articles/126265.pdf
Data publikacji:
2010
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
odory
superfosfat
lotne związki organiczne
odors
superphosphate
volatile organic compounds
Opis:
W polskim ustawodawstwie istnieje bardzo dotkliwa dla obywateli i przedsiębiorców luka dotycząca regulacji prawnych związanych z uciążliwością zapachową. Po przeprowadzeniu analizy publikowanych projektów aktów prawnych i literatury z tego zakresu stwierdzono, że „ustawa odorowa” w kształcie proponowanym przez administrację państwową nie może wejść w życie. Jako przykład gałęzi przemysłu będącej przyczyną powstawania uciążliwości zapachowej wybrano procesy produkcyjne, wykorzystujące surowce fosforanowe ze szczególnym uwzględnieniem produkcji superfosfatu prostego. W celu scharakteryzowania problemu dokonano analizy doniesień literaturowych dotyczących diagenezy i składu fosforytów pod kątem obecnej w nich fazy organicznej, z której w czasie produkcji nawozu powstają odoranty. W celu określenia obecności konkretnych związków odorotwórczych pobrano próbki gazów wylotowych z instalacji produkującej superfosfat prosty. Próbki te zanalizowano metodą TD-GC/MS pod kątem identyfikacji lotnych związków organicznych. Zidentyfikowano ponad 80 różnych związków, a wśród nich: dużo alkanów, cykloalkanów, aromatów i organicznych związków siarki. Najprawdopodobniej za złowonność gazów wylotowych w największym stopniu odpowiedzialne są właśnie związki siarki. Ze względu na znikome informacje dotyczące właściwości złowonnych mieszanin różnych związków nie można wykluczyć wpływu innych składników na zapach analizowanych gazów wylotowych. Ostatecznie ze względu na brak danych w dostępnej literaturze zaproponowano przeprowadzenie kompleksowych badań dotyczących związków organicznych w produkcji superfosfatu prostego. Z prognoz dotyczących wykorzystywania surowców fosforowych wynika, że w ciągu następnych kilku dekad czeka nas wzrost produkcji mineralnych nawozów fosforowych. Dlatego należy jak najszybciej uporać się z problematyką uciążliwości zapachowej.
There is no kind of odor control law in Polish legislation. Therefore Polish citizens and many branches of industry have got problems which are connected with the influence of volatile chemical substances which effect the air quality. Polish government attempts of solving this situation by proposing suitable projects were rejected by industry and scientist. The phosphate ores manufacturing especially superphosphate production was chosen as an example of a branch of industry which is a source of odors. To characterize odor problem in the light of superphosphate production the waste gases were analyzed and the results were compared in reference to professional literature. The gas samples were taken in FOSFAN SA company during superphosphate production and analyzed using TD-GC/MS method. There were identified over 80 volatile organic compounds like alkanes, cycloalkanes and aromatic compounds. Probably the most significant influence for odor perception is connected with presence of sulfur volatile organic compounds. In addition to lack of professional data connected with smell of gas mixture consisted with different particles there is no possibility to exclude the influence of other particles for human smell perception. Finally the new method of further research was proposed. This research includes not only analysis of organic matter in waste gases but also in phosphate ores and superphosphate fertilize. To receive comparable results the whole research should be provided during the same day of production. This sort of research could give an solution for deodorization and preventing the decrease of air quality. It could be also helpful to develop new law projects. It is predicted that in the future the production of superphosphate fertilize will increase. Thereby the greater amount of odors will be released into the atmosphere. That is why further research combined with creating well functioning odor control law is so important to be established.
Źródło:
Proceedings of ECOpole; 2010, 4, 1; 147-152
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of Odour-Generating Substances in Phosphate Rock Processing Operations
Identyfikacja związków odorotwórczych w procesach przetwarzania surowców fosforowych
Autorzy:
Hoffmann, K.
Skut, J.
Kordon, Ł.
Hoffmann, J.
Powiązania:
https://bibliotekanauki.pl/articles/388131.pdf
Data publikacji:
2010
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
odory
superfosfat
lotne związki organiczne
odours
superphosphate
volatile organic compounds
Opis:
There is no kind of odour control law in Polish legislation. Therefore, Polish citizens and many branches of industry have got problems which are connected with the influence of volatile chemical substances which affect the drop of air quality. Couples of government attempts of solving this situation by proposing suitable projects were rejected by industry and scientist. The phosphate ores manufacturing especially superphosphate production was chosen as an example of a branch of industry which is a source of odours. In due to characterize odour problem in the light of uperphosphate production the exhaust gases were analyzed and the results were compared with reference to professional literature. The gas samples were taken in FOSFAN S.A Company during superphosphate manufacturing and analyzed using TD-GC/MS method. There were identified over 80 volatile organic compounds like alkanes, cycloalkanes and aromatic compounds. Probably the most significant influence for odour perception is connected with presence of sulphur volatile organic compounds. In addition to lack of professional data connected with smell of gas mixture consisted with different particles there is no possible to exclude the influence of other particles for human smell perception. Finally the new method of further research was suggested. This research includes not only analysis of organic matter in waste gases but also in phosphate rocks and superphosphate fertilizer. To obtain comparable results the whole research should be provided during the same day of production. This sort of research could give a solution for deodorization and preventing the drop of air quality. It could be also helpful in course to develop new law projects. It is predicted that in future the production of superphosphate fertilizer will increase. Thereby the greater amount of odours will be released into the atmosphere. That is why further research combined with creating well functioning odour control law is so important to be established.
W polskim ustawodawstwie istnieje bardzo dotkliwa dla obywateli i przedsiębiorców luka dotycząca regulacji prawnych związanych z uciążliwością zapachową. Po przeprowadzeniu analizy publikowanych projektów aktów prawnych i literatury z tego zakresu stwierdzono, że „ustawa odorowa” w proponowanym przez administrację państwową kształcie nie może wejść w życie. Jako przykład gałęzi przemysłu będącej przyczyną powstawania uciążliwości zapachowej wybrano procesy produkcyjne wykorzystujące surowce fosforanowe ze szczególnym uwzględnieniem produkcji superfosfatu prostego. W celu scharakteryzowania problemu dokonano analizy doniesień literaturowych dotyczących diagnozy i składu fosforytów pod kątem obecnej w nich fazy organicznej, z której w czasie produkcji nawozu powstają odoranty. W celu określenia obecności konkretnych związków odorotwórczych pobrano próbki gazów wylotowych z instalacji produkującej superfosfat prosty. Próbki te zanalizowano metodą TD-GC/MS pod kątem identyfikacji lotnych związków organicznych. Zidentyfikowano ponad 80 różnych związków a wśród nich: dużo alkanów, cykloalkanów, aromatów i organicznych związków siarki. Najprawdopodobniej za złowonność gazów wylotowych w największym stopniu odpowiedzialne są właśnie związki siarki. Ze względu na znikome informacje dotyczące właściwości złowonnych mieszanin różnych związków nie można wykluczyć wpływu innych składników na zapach analizowanych gazów wylotowych. Ostatecznie ze względu na brak danych w dostępnej literaturze zaproponowano przeprowadzenie kompleksowych badań dotyczących związków organicznych w produkcji superfosfatu prostego. Z prognoz dotyczących wykorzystywania surowców fosforowych wynika, że w ciągu następnych kilku dekad czeka nas wzrost produkcji m.in. nawozów fosforowych. Dlatego należy jak najszybciej uporać się z problematyka uciążliwości zapachowej.
Źródło:
Ecological Chemistry and Engineering. A; 2010, 17, 11; 1517-1524
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical analysis of volatile organic compounds concentration in A C segmnet vehicle interior – diesel engine exhoust pollution
Autorzy:
Dudycz, A.
Górniak, A.
Janicka, A.
Rodak, M.
Skrętowicz, M.
Trzmiel, K.
Włostowski, R.
Woźniak, J.
Zawiślak, M.
Powiązania:
https://bibliotekanauki.pl/articles/2073654.pdf
Data publikacji:
2015
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
computational fluid dynamics CFD
volatile organic compounds (VOCs)
diesel engine
Opis:
In large cities the number of inhabitants constantly increases. It is caused by economic issues. The evergrowing populations causes more intense traffic and in consequence increase of air pollutions. Topology and roads configuration is conducive to the accumulation of toxic substances. Harmful substances accumulates inside the vehicles interiors which significantly deteriorate microclimate within the cabin. The study aimed to determine the amount of harmful substances getting into the interior of vehicles and their distribution have been presented in this paper.
Źródło:
Journal of Polish CIMEEAC; 2015, 10, 1; 45--52
1231-3998
Pojawia się w:
Journal of Polish CIMEEAC
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deep Eutectic Solvents and Their Uses for Air Purification
Autorzy:
Janicka, Patrycja
Płotka-Wasylka, Justyna
Gębicki, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2202116.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
volatile organic compounds
VOCs
air purification
deep eutectic solvent
sorbent
Opis:
Chemical compounds released into the air by the activities of industrial plants and emitted from many other sources, including in households (paints, waxes, cosmetics, disinfectants, plastic (PVC) flooring), may affect the environment and human health. Thus, air purification is an important issue in the context of caring for the condition of the environment. Deep eutectic solvents (DESs) as liquids with environmentally friendly properties (non-volatile, biodegradable, non-toxic, cheap, easy to prepare) are a promising solution to this problem. This paper reviews the advances made in the application of DESs as sorbents for the purification of atmospheric and indoor air. The potential of DESs and their subclasses (including SUPRAmolecular Deep Eutectic Solvents, SUPRADESs) applications in air purification processes were also summarized.The authors believe that this review can be useful for future readers as a starting point for research in the field of DESs and their application in air purification.
Źródło:
Journal of Ecological Engineering; 2022, 23, 10; 181--190
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Risk evaluation of driver exposure to exhaust fumes inside the passenger car cabin in urban traffic conditions
Autorzy:
Skrętowicz, M.
Jankowski, A.
Haller, P.
Woźniak, J.
Janas, M.
Powiązania:
https://bibliotekanauki.pl/articles/245464.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
vehicles
road transport
air pollution
car cabin
volatile organic compounds (VOCs)
Opis:
Nowadays, with the current dynamic development of the automotive industry, we spend more and more time indoors, including in vehicles. The air used for ventilation of the vehicle's cabin comes from the outside. Pollution enters into the vehicle. This research presents the results of tests conducted to assess the exposure of the driver and passengers to volatile organic compounds entering the vehicle with atmospheric air. The simulation researches were conducted on a chassis dynamometer at the Department of Vehicle Engineering at the Faculty of Mechanical Engineering Technical University of Wroclaw and the tests under real conditions, i.e. traffic urban conditions, were taken as well. The measurements were conducted in the centre of Wroclaw during peak hours, when the traffic jam is the most frequent. The measurements were taken in order to organic compounds analysis, which includes gas chromatography. The analysis results were averaged from three measurements to get these studies more reliable. Results show that during mobile tests the vehicle was exposed to much more pollution than in the stationary tests in the simulated conditions of traffic congestion. Therefore, the studies present that the pollution in the traffic congestion is the real danger to drivers.
Źródło:
Journal of KONES; 2016, 23, 3; 457-464
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Health risk to medical personnel of surgical smoke produced during laparoscopic surgery
Autorzy:
Dobrogowski, Miłosz
Wesolowski, Wiktor
Kucharska, Małgorzata
Paduszyńska, Katarzyna
Dworzyńska, Agnieszka
Szymczak, Wiesław
Sapota, Andrzej
Pomorski, Lech
Powiązania:
https://bibliotekanauki.pl/articles/2177163.pdf
Data publikacji:
2015-07-29
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
smoke
exposure
volatile organic compounds
dioxins
health risk
laparoscopic cholecystectomy
pyrolysis
Opis:
Objectives During laparoscopic cholecystectomy, the removal of the gall bladder, pyrolysis occurs in the peritoneal cavity. Chemical substances which are formed during this process escape into the operating room through trocars in the form of surgical smoke. The aim of this study was to identify and quantitatively measure a number of selected chemical substances found in surgical smoke and to assess the risk they carry to medical personnel. Material and Methods The study was performed at the Maria Skłodowska-Curie Memorial Provincial Specialist Hospital in Zgierz between 2011 and 2013. Air samples were collected in the operating room during laparoscopic cholecystectomy. Results A complete qualitative and quantitative analysis of the air samples showed a number of chemical substances present, such as aldehydes, benzene, toluene, ethylbenzene, xylene, ozone, dioxins and others. Conclusions The concentrations of these substances were much lower than the hygienic standards allowed by the European Union Maximum Acceptable Concentration (MAC). The calculated risk of developing cancer as a result of exposure to surgical smoke during laparoscopic cholecystectomy is negligible. Yet it should be kept in mind that repeated exposure to a cocktail of these substances increases the possibility of developing adverse effects. Many of these compounds are toxic, and may possibly be carcinogenic, mutagenic or genotoxic. Therefore, it is necessary to remove surgical smoke from the operating room in order to protect medical personnel.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2015, 28, 5; 831-840
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sea Fennel (Crithmum maritimum L.) Flowers as an Emerging Source of Bioactive Compounds
Autorzy:
Radman, Sanja
Mastelić, Linda
Ljubenkov, Ivica
Lazarevski, Sara
Politeo, Olivera
Podrug, Roko
Prga, Ivana
Čorić, Ivona
Popović, Marijana
Veršić Bratinčević, Maja
Skroza, Danijela
Brzović, Petra
Runjić, Marko
Urlić, Branimir
Generalić Mekinić, Ivana
Powiązania:
https://bibliotekanauki.pl/articles/48899271.pdf
Data publikacji:
2024-08-13
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
essential oil
volatile organic compounds
phenolics
fatty acids
tocopherols
antioxidant capacity
Opis:
Sea fennel (Crithmum maritimum L.) is an edible halophytic species rich in various valuable phytochemicals, and has accordingly, been used in traditional medicine and nutrition since ancient times. The aim of this study was to investigate the chemical composition of sea fennel flowers from three regionally (ecologically) different locations on the Croatian Adriatic coast (Pag, Korčula, Cavtat). The profiles of essential oils (EOs), fatty acids (FAs), tocopherols, and phenolic compounds (total phenolics, flavonoids, and tannins) as well as associated antioxidant capacity were analysed. The flowers collected at the northernmost site had the lowest contents of total phenolic compounds, limonene in the EO and unsaturated FAs, but the highest content of α-tocopherol, one of the best-known plant lipophilic antioxidants. On the other hand, the flowers from Korčula and Cavtat contained high amounts of phenolics, especially chlorogenic acid (7.99 and 13.27 mg/g dry plant matter, respectively), resulting in high antioxidant activity of the samples. Despite these differences in composition, which may be related to the geographical location of the sampling site, sea fennel flowers from all locations can be considered a valuable source of important health-promoting phytochemicals.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2024, 74, 3; 221-231
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zintegrowany proces biodegradacji lotnych związków organicznych
Hybrid process of volatile organic compounds biodegradation
Autorzy:
Noworyta, A.
Trusek-Hołownia, A.
Szydełko, A.
Mizer, P.
Powiązania:
https://bibliotekanauki.pl/articles/2070428.pdf
Data publikacji:
2009
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
związki organiczne lotne
biodegradacja
bioreaktor membranowy
volatile organic compounds
biodegradation
membrane bioreactor
Opis:
Zaproponowano zintegrowany proces oczyszczania powietrza z lotnych związków organicznych. Do usuwania danego zanieczyszczenia z powietrza zastosowano procesy sorpcyjne, a do jego degradacji przemianę mikrobiologiczną. Wykazano skuteczność regeneracji sorbentu zarówno stałego jak i ciekłego oraz wymagany stopień degradacji zanieczyszczeń. Powolny przebieg biodegradacji wymaga jednak aparatury wielkogabarytowej.
An integrated process of purifying air from volatile organic compounds was proposed. Sorption processes were applied to remove pollutants from air whereas the microbiological transformation to degrade them. The effectiveness of sorbent regeneration, both solid and liquid, was demonstrated and the required degree of pollutant degradation was achieved. Nevertheless, slow biodegradation processes require large scale apparatus.
Źródło:
Inżynieria i Aparatura Chemiczna; 2009, 3; 77-78
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 83

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