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Tytuł:
Toxicity of polycyclic aromatic hydrocarbons (PAHs) in diesel exhausts
Autorzy:
Janicka, A.
Walkowiak, W.
Tkaczyk, M.
Czarny, A.
Zaczyńska, E.
Powiązania:
https://bibliotekanauki.pl/articles/245718.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
polycyclic aromatic hydrocarbons
exhaust toxicity
Opis:
The paper presents results of analysis of Polycyclic Aromatic Hydrocarbons (PAHs) concentration and toxicity emitted from 1,9 TDI self-ignition. Because of unstable parameters of self-ignition engine work (pressure and temperature jumps), PAHs were extracted from two phases: gas phase and solid phase (particle matter - PM). A chromatographic method (Capillary gas Chromatography) of polycyclic aromatic hydrocarbons identification and analysis, because of their low level of concentration in exhaust gases, needed to be supported by sample purification and enrichment stages. Calibration of the chromatograph was made by attested mixture of 16 model samples (according to EPA, USA). Two different methods for toxicity estimation was used in this researches. The authors used relative carcinogenic coefficients (RCC) which was determined by Nisbet and LaGoy for individual polycyclic aromatic hydrocarbons in relation to benzo(a)pirene. Samples consist PAHs was also tested for cytotoxicity in standardized cell-culture system (human cell line A549, mouse fibroblasts line cell L929). Cell growth, cell morphology and cell viability were used as parameters to determine the cytotoxicity of the materials. The measure the lethality effect on cells was determined spectrophotometrically with the use of a mitochondrial enzyme activity assay for mitochondrial succinate dehydrogenase activity by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT assay). Cells were exposed to the biomaterials for 24, 72 and 120 h. The results of in vitro tests are discussible. A lach of correlation between toxicity measurement methods which was used in these researches was observed.
Źródło:
Journal of KONES; 2009, 16, 4; 195-199
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polycyclic aromatic hydrocarbons in hard coals from Poland
Autorzy:
Bojakowska, I.
Sokołowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/2059323.pdf
Data publikacji:
2001
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
hard coal
polycyclic aromatic hydrocarbons
Opis:
Concentrations of seventeen unsubstituted polycyclic aromatic hydrocarbons (PAHs) have been determined in hard coal samples from the Carboniferous Upper Silesian, Lower Silesian and Lublin Coal Basins. Among the investigated coals the highest average content of PAHs was determined for the Lower Silesian coals - 6.619 ppm, whereas the means for the Upper Silesian and Lublin coals were 4.11 and 4.319 ppm respectively. Hard coals from the Lublin Coal Basin have relatively high contents of the 5- and 6-cyclic hydrocarbons and lower contents of the 3-cyclic hydrocarbons (0.180 ppm) than coals from the Lower Silesian and Upper Silesian Coal Basins, which contain 2.542 and 1.437 ppm respectively. Within the Upper Silesian Coal Basin there are differences in the PAH "profiles": the coals from the eastern part of the basin have higher contents of the 5- and 6-cyclic aromatic hydrocarbons and lower contents of the 3-cyclic hydrocarbons than those from the western part of the basin.
Źródło:
Geological Quarterly; 2001, 45, 1; 87-92
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polycyclic aromatic hydrocarbons in crude oils from Poland
Autorzy:
Bojakowska, I.
Sokołowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/2059329.pdf
Data publikacji:
2001
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
polycyclic aromatic hydrocarbons
crude oils
Opis:
The content of 17 polycyclic aromatic hydrocarbons (PAHs) in oil samples derived from all three oil-bearing regions of Poland, i.e. from the Carpathians, the Carpathian Foredeep and the Polish Lowlands (the Fore-Sudetic-Wielkopolska, the Western Pomeranian and the Peribaltic areas), were determined. The concentrations of PAHs determined in these crude oils varied from 22.85 to 332.45 ppm. The average content of PAHs in crude oils from the Carpathians and the Carpathian Foredeep (191.18 ppm) was several times higher than that in crude oils from the Polish Lowlands (44.70 ppm); there was throughout, though, a relatively small variability in the content of perylene, varying from 0.50 to 0.80 ppm. Of PAH compounds determined, the largest share was occupied by 3-cyclic hydrocarbons (an average of 72%) and 4-cyclic (about 24%), whereas the content of 5- and 6-cyclic hydrocarbons did not exceed 3%. Phenanthrene and fluorene were prevailing PAH compounds. The diverse PAH composition in oil samples from the Polish Lowlands compared to those from the Carpathians and the Carpathian Foredeep seems to have resulted more from the composition of original organic matter than from the course of geochemical and biochemical processes (which occur during biomass decay) and the subsequent migration of these compounds in rock formations.
Źródło:
Geological Quarterly; 2001, 45, 1; 81-86
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polycyclic aromatic hydrocarbons in brown coals from Poland
Autorzy:
Bojakowska, I.
Sokołowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/2059332.pdf
Data publikacji:
2001
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
brown coal
polycyclic aromatic hydrocarbons
Opis:
Concentrations of seventeen unsubstituted polycyclic aromatic hydrocarbons (PAHs) have been determined in brown coal samples from several deposits in Poland. Content of the total determined PAHs ranges from 0.247 to 4.894 ppm, with an average value of 1.542 ppm. Unsubstituted PAHs concentrations in brown coals from tectonic depression deposits are several times higher than in brown coals from lensoid deposits. Among the investigated PAHs, perylene is the most abundant, exceeding other determined PAHs more than tenfold. Samples taken from coal lensoid deposits contain more chrysene and benzo(a)anthracene than samples from tectonic depressions, which have more acenaphthylene, fluoranthene and pyrene.
Źródło:
Geological Quarterly; 2001, 45, 1; 93-98
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interaction of anthracene and its oxidative derivatives with human serum albumin
Autorzy:
Skupińska, Katarzyna
Zylm, Monika
Misiewicz, Irena
Kasprzycka-Guttman, Teresa
Powiązania:
https://bibliotekanauki.pl/articles/1041275.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
albumin
affinity constant
polycyclic aromatic hydrocarbons
Opis:
Binding affinities of ten polycyclic aromatic hydrocarbons to albumin were determined: anthracene, its eight oxy-derivatives: anthraquinone, 9-anthracenemethanol, 9-anthraldehyde, 9-anthracenecarboxylic acid, 1,4-dihydroxyanthraquinone, 1,5-dihydroxyanthraquinone, 1,8-dihydroxyanthraquinone, 2,6-dihydroxyanthraquinone and benzo[a]pyrene. The quenching of albumin fluorescence was used to measure the PAH - protein interaction. The theoretical curve of calculated fluorescence was fitted to experimental data after necessary corrections regarding PAHs fluorescence and inner filter effect. From the numerical fitting the final association constants were calculated. Anthracene and anthraquinone failed to quench the albumin fluorescence. 9-anthracenecarboxylic acid showed the highest, while 9-anthracenemethanol the weakest albumin binding affinity. The affinity constants determined for 9-anthraldehyde and benzo[a]pyrene were of the same magnitude and indicated low-affinity binding to albumin. The constants obtained for the four dihydroxyanthraquinones were higher, but dissimilar, which suggests that the position of the functional group in anthracene molecule influences the binding constant. Moreover, this study suggests that the type of substituent plays a significant role in PAH-albumin complex formation. The carboxylic group increases the binding affinity of the anthracene molecule the most rather than the presence of both carbonyl and hydroxyl groups. The lowest affinity constants were obtained for aldehyde, methyl and carbonyl substituents.
Źródło:
Acta Biochimica Polonica; 2006, 53, 1; 101-112
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polyarenes accumulation in tundra ecosystem influenced by coal industry of Vorkuta
Autorzy:
Yakovleva, Evgenia
Gabov, Dmitriy
Powiązania:
https://bibliotekanauki.pl/articles/2041799.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
biomonitoring
soils
pollution
polycyclic aromatic hydrocarbons
Źródło:
Polish Polar Research; 2020, 41, 3; 237-268
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Predictors of environmental exposure to polycyclic aromatic hydrocarbons among pregnant women — Prospective cohort study in Poland
Autorzy:
Polańska, Kinga
Hanke, Wojciech
Sobala, Wojciech
Brzeźnicki, Sławomir
Ligocka, Danuta
Powiązania:
https://bibliotekanauki.pl/articles/2185479.pdf
Data publikacji:
2011-03-01
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
polycyclic aromatic hydrocarbons
1-hydroxypyrene
smoking
pregnancy
Opis:
Objectives: The aim of the study was to characterize the PAH exposure level based on 1-hydroxypyrene (1-HP) in urine of Polish pregnant women and to assess the relationship between PAH and factors such as smoking, environmental tobacco smoke exposure, place of residence, heating and cooking method. Materials and Methods: The study population included in this analysis consisted of 449 pregnant women who had been the subjects of the prospective Polish Mother and Child Cohort study performed in 8 regions of Poland. The women were interviewed three times during pregnancy (once in each trimester). 1–HP concentration in urine was chosen as the biomarker of exposure to PAH. The urine sample was analysed using high performance liquid chromatography (HPLC). The active and passive smoking exposure was verified by saliva cotinine, analysed by high performance liquid chromatography coupled with tandem mass spectrometry (LC-MSMS) and isotope dilution method. Results: 1-HP concentration in urine ranged from 0.02 to 10.2 μg/g creatinine with the geometric mean (GM) 0.4 μg/g creatinine. The significantly higher concentration of urinary 1-HP in pregnant women was observed for summer collection (GM ratio: 1.1; p = 0.01), among smokers (GM ratio: 1.7; p < 0.001) and for the women living in big cities (GM ratio: 1.3; p = 0.001). Conclusions: The significantly higher concentration of urinary 1-HP in pregnant women was observed for summer collection, among smokers and those living in big cities.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2011, 24, 1; 8-17
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exergetic analysis of the chitosan-based treatment process for removing polycyclic aromatic hydrocarbons from seawater and sediments
Autorzy:
Cantillo-Figueroa, Maileth
Moreno-Sader, Kariana A.
Gonzalez-Delgado, Angel D.
Powiązania:
https://bibliotekanauki.pl/articles/1844377.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
efficiency
exergy
polycyclic aromatic hydrocarbons
PAHs
sensitivity analysis
Opis:
The Bay of Cartagena (Colombia) is a site of commercial interest owing to its privileged location for maritime operations; however, the discharge of wastewaters from industrial activities and domestic sewage are affecting the water quality, and consequently, the biodiversity of coastal ecosystems. The polycyclic aromatic hydrocarbons (PAHs) are found in sediments and water of main ports, causing severe damage to the ecosystem. Thus, alternatives for the treatment of the Bay of Cartagena’s water and sediments are needed. In this paper, we performed the exergetic analysis of removing PAHs from water and sediments in the Bay of Cartagena using an adsorption-based treatment process with chitosan microbeads and magnetic nanoparticles (CM-TiO2/Fe3O4). The outcomes of exergy of utilities, irreversibilities and exergy losses were calculated using process data and exergy of substances. The Aspen plus V10 software provided the physical exergies, while chemical exergies were gathered from the literature. Overall exergy efficiency of 0.3% was determined for the seawater and sediment treatment facility. A sensitivity analysis was performed to identify the impact and viability of different design alternatives.
Źródło:
Journal of Water and Land Development; 2021, 48; 88-93
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on carcinogenic PAHs emission generated by vehicles and its correlation to fuel and engine types
Autorzy:
Kumar, V.
Kothiyal, N. C.
Powiązania:
https://bibliotekanauki.pl/articles/949327.pdf
Data publikacji:
2014
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
polycyclic aromatic hydrocarbons
gas chromatography
pollutants
concentration
season
Opis:
The objective of this study was to find major PAHs produced in ambient air from the automobile exhaust as a function of fuels (diesel, petrol, and biodiesel) and engine type qualitatively and quantitatively. The recovery range was found between 30% and 70%. The study was carried out on two, three, and four wheelers. Biodiesel samples tested in the study were synthesized indigenously from different starting raw materials and analyzed for PAHs concentration in the exhaust on a Honda genset (EBK 2000AC Model). Biodiesel samples were blended with diesel in different ratio (25:75, 35:65 and 45:55) to investigate the exhaust behavior. Biodiesel was blended with Diesel the concentration of almost all PAHs reduces in comparison to pure Diesel exhaust. B(a)A and B(a) P was the common PAH found in higher concentration in almost all fuels. FTIR results indicate esterification of vegetable oil and NMR results indicate a complete conversion of oils into biodiesel.
Źródło:
Polish Journal of Chemical Technology; 2014, 16, 1; 48-58
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of Pt active coating application inside diesel engine on polycyclic aromatic hydrocarbons (PAHS) emission
Autorzy:
Janicka, A
Walkowiak, W.
Szczepaniak, W.
Powiązania:
https://bibliotekanauki.pl/articles/244056.pdf
Data publikacji:
2008
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
active coating
catalyst
polycyclic aromatic hydrocarbons
diesel engine
Opis:
Application of active coating inside of an self-ignition engine may have an important impact on several stages of combustion process: fuel cracking, fore-flame phase, combustion phase and secondary combustion phase [7]. Investigations of such construction are very rare in the literature - especially of hydrocarbons emission. Polycyclic aromatic hydrocarbons (PAHs) are known to have mutagenic and carcinogenic effect on humans [2, 6, 7]. One of the most important anthropogenic sources of these substances is motorization (especially diesel engines). The paper presents results of measurements of PAHs emissions from SB3.1 self-ignition engine with Pt active coating application inside. The catalyst was applied on engine valves surface. Zirconium ceramic was chosen as a coating for catalyst application (also because of its thermo-insulating properties). Because of unstable parameters of self-ignition engine work (pressure and temperature jumps), PAHs were extracted from two phases: gas phase and solid phase (particle matter - PM). A chromatographic method of PAHs identification and analysis, because of their low level of concentration in exhaust gases, needed to be supported by sample purification and enrichment stages [40]. It has been found that a significant decrease of total toxic polycyclic aromatic hydrocarbons concentration in engine exhaust gases for engine with Pt catalyst application. The catalyst application causes also changes in relative concentrations of polycyclic aromatic hydrocarbons.
Źródło:
Journal of KONES; 2008, 15, 2; 131-136
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolation and characterisation of bacteria degrading polycyclic aromatic hydrocarbons : phenanthrene and anthracene
Autorzy:
Nzila, A.
Sankaran, S.
Al-Momani, M.
Musa, M. M.
Powiązania:
https://bibliotekanauki.pl/articles/204726.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
phenanthrene
biodegradation
anthracene
gas chromatography
polycyclic aromatic hydrocarbons
Opis:
The aim was to isolate and characterise bacteria that can be used to degrade phenanthrene and anthracene. Bacteria were isolated by enrichment of contaminated soil in mineral medium. Growth profiles were assessed by colony forming units (CFU). Electron microscopy and 16S rRNA gene sequencing were employed to characterise these bacteria. Growth profiles were quantified by analysing the culture doubling time, and both the quantification of utilisation of aromatic compounds and the detection of phenanthrane metabolites were carried out by gas chromatography and mass-spectrometry. Two co-cultures of phenanthrene- and anthracene-biodegrading bacteria (PHEN-Cult and ANT-Cult, respectively) were isolated and characterised. The two co-cultures grew rapidly, reaching maximum counts of 1010 CFU/mL, within 2–10 days. The doubling time (dt) fell between 0.5–1.5 day (at PHEN and ANT concentrations of 1–100 ppm), making them among the most active PAH degrading microorganisms described so far. PHEN-Cult consists of two strains, Pseudomonas citronellolis, PHC3Z1A, and Stenotrophomonas maltophilia, JPHC3Z2B, while ANT-Cult is made of Ralstonia pickettii, JANC1A and Thermomonas haemolytica, JANC2B. Both co-cultures were more active at pH 7, 0–4% NaCl, and 37–40°C. They were also able to utilise naphthalene, salicylic acid and catechol. Starting with 100 ppm, within 15 days, 50–75% of PHEN and ANT were degraded, and the following were the PHEN metabolites that were identified: 3-naphthyl-allyl alcohol, phthalic acid ethyl diester, 2-hydroxybenzalpyruvic acid-methyl ester. These bacteria are appropriate for the removal of PHEN and ANT in contaminated environments, thus further studies are warranted to establish their ability to remove these PAHs in pilot and large scale.
Źródło:
Archives of Environmental Protection; 2018, 44, 2; 43-54
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of temperature of wood pyrolysis on the content of polycyclic aromatic hydrocarbons in smoked meats
Wpływ temperatury pirolizy drewna na zawartość wielopierścieniowych węglowodorów aromatycznych w wyrobach mięsnych wędzonych
Autorzy:
Choroszy, K.
Tereszkiewicz, K.
Kulig, L.
Powiązania:
https://bibliotekanauki.pl/articles/961390.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
smoking
smoking temperature
deli meats
polycyclic aromatic hydrocarbons
Opis:
The aim of the study was to evaluate the effect of wood pyrolysis temperature on the content of polycyclic aromatic hydrocarbons in selected sausage products. The study material consisted of rural sausage smoked in traditional way in two chambers. The tested PAH content of the samples was determined by liquid chromatography (HPLC). Studies have shown that running a smoking process at an average temperature of 551.2°C resulted in a significant reduction in the concentration of polycyclic aromatic hydrocarbons compared to their content in the article smoked at an average temperature of 675.2°C. The concentration of benzo(a)pyrene in smoked sausage at lower temperatures was in accordance with the applicable standards. And the sum of the four PAHs, both at higher and lower temperatures, exceeded the current recommendations.
Źródło:
Acta Scientiarum Polonorum. Zootechnica; 2017, 16, 3
1644-0714
Pojawia się w:
Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Degradation of the highly complex polycyclic aromatic hydrocarbon coronene by the halophilic bacterial strain Halomonas caseinilytica, 10SCRN4D
Autorzy:
Okeyode, Ajibola H.
Al-Thukair, Assad
Chanbasha, Basheer
Nazal, Mazen K.
Afuecheta, Emmanuel
Musa, Musa M.
Algarni, Shahad
Nzila, Alexis
Powiązania:
https://bibliotekanauki.pl/articles/27311570.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
coronene
biodegradation
polycyclic aromatic hydrocarbons
Halomonas
gas chromatography
Opis:
Polycyclic aromatic hydrocarbons (PAHs) are significant pollutants found in petroleum products. There is ample literature on the biodegradation of PAHs containing less than five rings, but little has been done on those with more than five rings. Coronene (CRN), a seven-ring-containing PAH, has only been shown to be degraded by one bacterial strain. In this study, a bacterial strain 10SCRN4D was isolated through enrichment in the presence of CRN and 10% NaCl (w/v). Analysis of the 16S rRNA gene identified the strain as Halomonas caseinilytica. The strain was able to degrade CRN in media containing 16.5–165 μM CRN with a doubling time of 9–16 hours and grew in a wide range of salinity (0.5–10%, w/v) and temperature (30–50°C) with optimum conditions of pH 7, salinity 0.5%–10% (w/v), and temperature 37°C. Over 20 days, almost 35% of 16.5 μM CRN was degraded, reaching 76% degradation after 80 days as measured by gas chromatography. The strain was also able to degrade smaller molecular weight PAHs such as benzo[a]pyrene, pyrene, and phenanthrene. This is the first report of Halomonas caseinilytica degrading CRN as the sole carbon source in high salinity, and thus highlights the potential of this strain in bioremediation.
Źródło:
Archives of Environmental Protection; 2023, 49, 3; 78--86
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zanieczyszczenia z grupy wwa - występowanie, charakterystyka oraz metody oznaczania w żywności i środowisku
Pah’s pollution group occurrence, characteristics and methods for the determination in food and environment
Autorzy:
Kubiak, M.S.
Piszcz, P.
Jankowski, P.S.
Powiązania:
https://bibliotekanauki.pl/articles/227946.pdf
Data publikacji:
2010
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Tematy:
węglowodory aromatyczne
żywność
zanieczyszczenia
polycyclic aromatic hydrocarbons
food
pollutants
Opis:
W artykule poruszono problem występowania wielopierścieniowych węglowodorów aromatycznych (WWA) w środowisku i w żywności poddanej obróbce termicznej. W oparciu o doniesienia literaturowe przedstawiono ogólną charakterystykę budowy WWA oraz skutki oddziaływania tych zanieczyszczeń na organizm. W artykule przedstawiono również możliwości oznaczania związków grupy zanieczyszczeń wielopierścieniowych węglowodorów aromatycznych WWA z wykorzystaniem technik chromatograficznych. Celem pracy zaprezentowanej w artykule było przedstawienie zagadnień związanych z oddziaływaniem zanieczyszczeń z grupy WWA na żywność i środowisko oraz metody ich oznaczania.
The paper raised the problem was the presence of polycyclic aromatic hydrocarbons (PAHs) in the environment and heat treated foodstuffs. Presents the background literature, general characteristics of the construction of PAH and the effect on the body after entering into it. The article also includes the possibility of determining the union group of pollutants, polycyclic aromatic hydrocarbons using chromatographic techniques. The aim is to present issues related to the impact of pollutants from the PAHs group on food and environment, and methods for their determination.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2010, 2; 93-97
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania monitoringowe osadów jeziornych w Polsce: wielopierścieniowe węglowodory aromatyczne
Monitoring studies of lake sediments in Poland: polycyclic aromatic hydrocarbons
Autorzy:
Bojakowska, I.
Sztuczyńska, A.
Grabiec-Raczak, E.
Powiązania:
https://bibliotekanauki.pl/articles/2062715.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
osady jeziorne
wielopierścieniowe węglowodory aromatyczne
lake sediments
polycyclic aromatic hydrocarbons
Opis:
W 150 próbkach osadów jeziornych pobranych z głęboczków jezior oznaczono zawartości 17 WWA metodą GC-MSD. Średnia zawartość WWA w osadach wynosiła 4424 mg/kg, średnia geometryczna – 2687 mg/kg, a mediana – 3150 mg/kg. W spektrum oznaczonych WWA dominują: fluoranten, benzo(b)fluoranten i piren. W osadach 12 jezior odnotowano przekroczenie dopuszczalnych zawartości WWA wg Rozporządzenia (2002). Zawartość WWA w osadach jeziornych wykazuje wysoką korelację z zawartością pierwiastków śladowych: kadmu, rtęci, cynku i ołowiu. Stwierdzono także istotną korelację między zawartością fosforu i siarki. Wśród zbadanych związków WWA zwraca uwagę dodatnia korelacja zawartości perylenu z zawartością żelaza oraz węgla organicznego i ujemna korelacja zawartości tego związku z zawartością wapnia. Stwierdzono zróżnicowanie regionalne w występowaniu WWA; osady Jezior Łęczyńsko-Włodawskich charakteryzują się znacznie niższą zawartością tych związków w porównaniu do osadów jezior innych pojezierzy, zwłaszcza Pojezierzy Pomorskich.
Contents of 17 PAHs were determined using a GC-MSD method in 150 samples of lake sediments taken from lake profundal zones. The average PAH content in the sediments was 4424 µg/kg, the geometric mean – 2687 µg/kg, and the median – 3150 µg/kg. The PAH spectrum is dominated by fluoranthene, benzo(b)fluoranthene, and pyrene. Exceeded permissible levels of PAHs, according to the Regulations of the Ministry of the Environment, were recorded in 12 lakes (Rozporządzenie, 2002). The content of PAHs in lake sediments shows a high correlation with the contents of trace elements: cadmium, mercury, lead and zinc. There is also a significant correlation between the contents of phosphorus and sulphur. Among the tested PAH compounds, there is a positive correlation of the perylene content with the iron and organic carbon contents, and a negative correlation of this compound with the calcium content. Regional differences were found in the occurrence of PAHs. The sediments of the Łęczna–Włodawa lakes are characterized by significantly lower contents of these compounds compared to lakes from other lake districts, especially the Pomeranian Lakeland.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2012, 450; 17--25
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 116

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