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Tytuł:
Zmienność czasowa stężenia naturalnych izotopów promieniotwórczych w wybranych wodach leczniczych Karpat polskich
Temporary variation of natural radionuclides’ concentrations in selected mineral therapeutic waters of the Polish Carpathians
Autorzy:
Chau, N. D.
Rajchel, L.
Nowak, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075764.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
wody lecznicze
skład chemiczny
naturalne izotopy promieniotwórcze
zmienność czasowa
Karpaty polskie
therapeutic mineral waters
chemical composition
natural radionuclides
temporary variation
Polish Carpathians
Opis:
The paper presents, the chemical composition and the activity concentrations of natural radionuclides (238U, 234U,226Ra and 228Ra) in selected therapeutic mineral waters from: Krynica-Zdrój (Zuber I, Zuber II and Słotwinka), Rabka-Zdrój (Krakus, Warzelnia and Rabka IG-2), Iwonicz-Zdrój (Elin 7 and Emma 7), Klimkówka (Klimkówka 27) and Lubatówka (Lubatówka 12). The analyses were carried outfor water samples collected twice in 2008 and in 2016. The analyzed waters are used mainly for crenotherapy and therapeutic bathing. Some waters are also bottled and used for production of cosmetics and medicinal waters. The measured uranium activity concentrations in the studied groundwater were very low, below 3 mBq/dm3 and 11 mBq/dm3 for 238U and 234U, respectively. In the case of radium isotopes (226Ra and 228Ra), their activity concentrations varied in a wide range from ca. 150 to ca. 1500 mBq/dm3. The total mineralization of the analyzed waters variedfrom 3.5 to ca. 24 g/dm3. A significant variation of both chemical composition and radium concentrations were observed in the water from Warzelnia intake. For the remaining waters, variation of 226Ra and 228Ra concentrations was observed in three (Zuber I, Słotwinka, Emma 7), and six intakes (Zuber I, Słotwinka, Krakus, Klimkówka 27, Emma 7, Elin 7), respectively.
Źródło:
Przegląd Geologiczny; 2017, 65, 11/1; 1031--1034
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zawartość gamma radionuklidów pochodzenia naturalnego i sztucznego w glebach w powiecie puławskim
Concentration of the Radionuclides of Natural Origin and Due to Human Activity in the Soil in the Powiat Puławski (Pulawski District)
Autorzy:
Isajenko, K. A.
Łukaszek-Chmielewska, A.
Bednarek, M.
Zielicz, A.
Smolarkiewicz, M.
Zwęgliński, T.
Powiązania:
https://bibliotekanauki.pl/articles/136998.pdf
Data publikacji:
2016
Wydawca:
Szkoła Główna Służby Pożarniczej
Tematy:
radionuklidy
promieniowanie gamma
gleba
szeregi naturalne
promieniowanie jonizacyjne
radionuclides
gamma radiation
soil
natural series
ionising radiation
Opis:
Środowisko przyrodnicze ulega zanieczyszczeniom chemicznym, w tym także pierwiastkami promieniotwórczymi. Pewna grupa pierwiastków obecna jest w skorupie ziemskiej od momentu jej powstania i towarzyszy nam do dnia dzisiejszego. Pierwiastki te stanowią grupę naturalnych izotopów promieniotwórczych, do których zalicza się m.in. 40K, 238U, 235U i 232Th. Oprócz tego typu pierwiastków promieniotwórczych, środowisko przyrodnicze może ulegać skażeniom radioizotopami, takimi jak: 137Cs, 134Cs, 90Sr, 239+240 Pu lub 241Am itp., powstającymi wskutek działalności człowieka. Głównym źródłem ich obecności są awarie reaktorów jądrowych, przeróbka i składowanie paliwa jądrowego oraz zastosowanie metod jądrowych w przemyśle i medycynie. Zanieczyszczenia antropogeniczne środowiska przyrodniczego są jednym z głównych zagrożeń gleb Polski, ponieważ gleba pełni rolę buforu gromadzącego substancje chemiczne zarówno pochodzenia naturalnego, jak i antropogenicznego. Jak wynika z danych przedstawionych w Raporcie Rocznym z 2011 roku, przygotowanym przez Centralne Laboratorium Ochrony Radiologicznej (CLOR) średnie stężenie 137Cs w powierzchniowej warstwie gleby w Polsce jest ciągle podwyższone (powyżej 1 kBq/m2) i wynosi 1,93 kBq/m2 w związku z powyższym wymaga stałego monitorowania. W artykule przedstawiono zachowanie się radionuklidów naturalnych i sztucznych w glebach w okolicy Zakładów Azotowych Puławy. Do tej pory gleby na tym obszarze badane były pod kątem skażeń chemicznych, a nie radiologicznych. Omówiono również koncentracje radionuklidów naturalnych i sztucznych takich jak: 210Pb, 137Cs, 40K, 228Ac w pionowym profilu glebowym, metodą spektrometrii promieniowania gamma przy użyciu detektora germanowego. Na podstawie przeprowadzonych pomiarów stwierdzono, że stężenie sztucznego izotopu 137Cs w glebie jest niższe od zawartości naturalnych izotopów 40K czy 210Pb.
The natural environment is exposed to pollution with chemical substances including radioactive elements. Certain class of elements has been in the earth’s crust since its formation and they have been up to this day. These elements form a group of natural radioactive isotopes which include 40K, 238U, 235U and 232Th. In addition to this type of radioactive elements the natural environment can be polluted with radioisotopes such as 137Cs, 134Cs, 90Sr, 239+240Pu or 241Am, which are released as a consequence of human activity. The main source of these elements are nuclear reactor incidents, processing and storing nuclear fuels as well as the use of nuclear methods in the industry and in medicine. The pollution due to human activity is one of the main hazards to the soil in Poland, because soil serves as a buffer which stores chemical substances both of natural origin and of anthropogenic origin. The data in the Annual Report from year 2011 prepared by the Centralne Laboratorium Ochrony Radiologicznej (CLOR, Central Laboratory for Radiological Protection) shows that the average concentration of 137Cs in the surface layer of soil in Poland is still elevated (over 1 kBq/m2) and equal 1,93 kBq/m2 thus requiring constant monitoring. That is why the paper describes the behavior of radionuclides of natural origin and of anthropogenic origin in the soil surrounding the Zakłady Azotowe Puławy (factory of nitrogen derivatives near Puławy, Poland). So far the soil in this area has been examined in terms of chemical pollution but not in terms of radiological pollution. In this article we present the results about the concentration of radionuclides of natural and anthropogenic origin such as 210Pb, 137Cs, 40K, 228Ac in the vertical soil structure using the method of gamma radiation spectroscopy and a germanium detector. Our data has shown that the concentration of the artificial isotope 137Cs in the examined soil is lower than the concentration of the natural isotopes 40K or 210Pb.
Źródło:
Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej; 2016, 4, 60; 41-57
0239-5223
Pojawia się w:
Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie ziemskich izotopów kosmogenicznych 10Be i 26Al w badaniach geologicznych – zarys metody oraz stan badań w Polsce
Application of terrestrial cosmogenic nuclides 10Be and 26Al for the geological investigations – a method outline and state of studies in Poland
Autorzy:
Sobczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/2061723.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
radionuklidy kosmogeniczne
10Be/26Al
ewolucja rzeźby
wiek ekspozycji
współczynniki erozji i denudacji
cosmogenic radionuclides
relief evolution
exposure age
denudation and erosion rates
Opis:
Celem niniejszego tekstu jest przybliżenie i wstępne zaznajomienie z podstawami metody datowania opartego na izotopach kosmogenicznych, przegląd głównych kierunków badawczych realizowanych przy jej użyciu oraz omówienie aktualnego stanu badań w Polsce. Do najczęściej wykorzystywanych izotopów kosmogenicznych należą 3He, 10Be, 14C, 21Ne, 26Al oraz 36Cl, które znajdują szerokie zastosowanie w badaniach form rzeźby oraz rekonstrukcji procesów geologicznych. Dzięki temu umożliwiają systematyzację geochronologiczną dla późnego kenozoiku, co jest szczególnie ważne tam, gdzie tradycyjne metody badawcze okazują się niewystarczające. Metoda ta cechuje się szerokim potencjałem analitycznym umożliwiając m.in. datowanie wieku ekspozycji różnych form powierzchni terenu, określanie współczynników denudacji i erozji, czy też szczegółową rekonstrukcję chronologii zlodowaceń.
The aim of this paper is to present a methodological introduction into cosmogenic radionuclides dating, summarizing the main research objectives, and an overview of the state of studies in Poland. Cosmogenic nuclides 3He, 10Be, 14C, 21Ne, 26Al and 36Cl are among the most common ones, being widely applied to analyses of geomorphological features and reconstructions of geological processes. Thereby they allow geochronological systematization of the Late Cenozoic, being of primary importance if traditional research methods fail. This approach has broad analytical potential for, i.e., dating of exposure history of different morphological features, estimation of denudation and erosion rates, as well as detailed reconstruction of glacial chronology.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2016, 466; 279--290
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vertical distribution of 137Cs, 210Pb, 226Ra and 239,240Pu in bottom sediments from the Southern Baltic Sea in the years 1998-2000
Autorzy:
Suplińska, M.
Powiązania:
https://bibliotekanauki.pl/articles/147171.pdf
Data publikacji:
2002
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Baltic Sea
contamination
radionuclides
sedimentation rate
Opis:
This paper presents vertical distribution of 137Cs, 226Ra and 239,240Pu in bottom sediments collected from the Southern Baltic Sea in the years 1998-2000. In the southern part of Baltic Sea the highest concentrations of 137Cs and 239,240Pu were observed at the Gulf of Gdansk. Deposition of 137Cs ranged from 1990š402 Bq m-2 in the Bornholm Basin to 3260š820 Bq m-2 in the Gulf of Gdansk. Depositions of 239,240Pu in the Bornholm Basin were 28.1-30.4 Bq m-2 and in Gulf of Gdansk 162-174 Bq m-2. The concentration peaks of long-lived radionuclides, owing to the sedimentation processes, show the maximum fallout period in different sediment layers. The observed differences in distribution of radiocaesium and plutonium along the profile confirm two main sources of contamination - Chernobyl fallout for 137Cs and global fallout in case of 239,240Pu. In chosen core samples from the Gdansk Basin vertical distribution of 210Pb concentrations were determined. Evaluated sedimentation rates based on decrease of unsupported 210Pb ranged in the Gdansk Basin from 1.9 to 2.3 mm year-1. Calculations based on 239,240Pu peaks show sedimentation rate, in the range from 1.6-2.2 mm year-1 for P110 region.
Źródło:
Nukleonika; 2002, 47, 2; 45-52
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trends in radiochemistry at the beginning of the 21st century
Autorzy:
Narbutt, J.
Powiązania:
https://bibliotekanauki.pl/articles/147944.pdf
Data publikacji:
2005
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
radiochemistry
nuclear power
radiopharmaceutical chemistry
chemistry of radioelements
radionuclides
Opis:
A review on selected - the most important and most prospective - directions of the present-day radiochemistry has been presented, with a special emphasis on the research carried out at the Department of Radiochemistry, Institute of Nuclear Chemistry and Technology.
Źródło:
Nukleonika; 2005, 50,suppl.3; 77-81
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermochromatographic separation of 206,208Po from a bismuth target bombarded with protons
Autorzy:
Wąs, B.
Misiak, R.
Bartyzel, M.
Petelenz, B.
Powiązania:
https://bibliotekanauki.pl/articles/148537.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
thermochromatographic separation
radionuclides 206Po and 208Po
environment
Opis:
The artificially produced isotopes of polonium are valuable tracers for radiochemical procedures for the determination of natural 210Po. In this work, the isotopes of polonium (206Po to 208Po) were produced by activation of metallic bismuth targets with 40 MeV protons. The thick target yield of 206Po was 16 MBq/ěAh. Polonium was separated from bismuth by a thermochromatographic method under reduced pressure in static conditions. The bismuth target can be considered as the multiple-use material.
Źródło:
Nukleonika; 2006, 51,suppl.2; 3-5
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The natural radioactivity of the Carpathian national parks and radon evaluation
Autorzy:
Maslyuk, V. T.
Symkanich, O. I.
Svatyuk, N. I.
Parlag, O. O.
Sukharev, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/971501.pdf
Data publikacji:
2016
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Carpathians
radionuclides
soils
depth content
radon
Opis:
The results of the low-background gamma spectrometric measurements of protected mountain areas (Zacharovanyy Kray, Chorne Bahno, Ihthyological Preserve Rika and Uzhanskij National Natural Park) in the region of Primeval Beech Forests of the Transcarpathia, Ukraine, are presented. The distances between sampling points in a single protected area were in the range of 200–400 m in elevation of 300 m; probes were taken from the surface, from depth 20 cm and more than 50 cm. The proposed sampling scheme allows one to investigate the radionuclide concentration in protected area’s soils, their distribution on/near the mountain ridges and migration in depth (0–50 cm). We also investigate the infl uence the soils’ pH on the contents and the migration of nuclides. The obtained data allow us to study the statistical regularities between the sampling points along and down mountain ridges on the base of their radionuclide content. These results are important for evaluating the radon content/distribution and developing standards in the radionuclide content of the soil Carpathian region.
Źródło:
Nukleonika; 2016, 61, 3; 351-356
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The meteorite fall near Boumdeid, Mauritania, from September 14, 2011
Autorzy:
Buhl, S.
Toueirjenne, C.
Hofmann, B.
Laubenstein, M.
Wimmer, K.
Powiązania:
https://bibliotekanauki.pl/articles/411504.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
Boumdeid (2011)
meteorite fall
Mauritania
trajectory scenario
L6 chondrite
cosmogenic radionuclides
Opis:
On the evening of September 14, 2011 at 21:00 GMT a bright bolide was observed by hundreds of eyewitnesses in the area north and west of the town of Kiffa, in the department of Assaba, in south Mauritania. A terminal fragmentation and sound phenomena were observed near the end point of the trajectory. At least one mass of 3.5 kg was observed to impact and recovered the morning after the fall near Boumdeid (or Bou Mdeid), around 60 km north of Kiffa. Subsequently a large number of eyewitness accounts were recorded and mapped by GPS. The present paper provides a scenario for the trajectory of the Boumdeid (2011) meteorite based on the available parameters and wind data at the relevant altitudes. In addition the paper presents the results of the mineralogical and chemical analysis of the recovered meteorite which is consistent with a classification as ordinary chondrite of type L6, shock stage S2, and a weathering grade of W0. Following its analysis and classification, the meteorite was published under the official name Boumdeid (2011) in Meteoritical Bulletin, no. 100, MAPS 49(8), (2014). Gamma ray spectroscopy was conducted 84 days after the fall and the detection of short-lived radionuclides such as 56Co and 46Sc confirmed the recency of the event. Derived from the data of 60Co, 54Mn and 22Na the approximate preatmospheric radius of the meteorite body was 10–20cm. The report is also intended to serve as a case example for post-event data recovery and trajectory reconstruction in areas not covered by sky-camera networks and with limited scientific infrastructure.
Źródło:
Meteorites; 2014, 3, No. 1-2; 5-18
2299-0313
2299-1220
Pojawia się w:
Meteorites
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Efficiency of Strontium-90 Desorption Using Iron (III) Solutions in the Decontamination Process of Radioactive Soils
Autorzy:
Cheremisina, O.
Sergeev, V.
Alabusheva, V.
Fedorov, A.
Iliyna, A.
Powiązania:
https://bibliotekanauki.pl/articles/123762.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
decontamination of radionuclides
thermodynamic investigations
kinetics investigations
desorption of strontium-90
iron (III) chloride
Opis:
The paper presents the investigation on the estimated efficiency of iron (III) chloride solutions in the decontamination process of radioactive soils with 90Sr, according to kinetic and thermodynamic characteristics of the desorption process. The specific 90Sr radioactivity of soil samples was (3.9±0.3)·104 Bq·g. The adsorption isotherms of Sr2+ and Fe3+ are described with the Langmuir equation. The values of Gibbs energy G0298 = -4.65 kJ·mol-1 and equilibrium ion exchange constant Keq = 6,5 confirm the hypothesis of strontium removal from soils with iron (III) cations. The effectiveness of the method is substantiated by experimental and calculated results of this study samples of radioactive soils are deactivated in 90% after 9.5 hours, whereas the kinetic constant is 6.77·10 s-1. The suggested method of soil cleanup with 0.2 M Fe3+ solutions is optimal and complies with the environmental requirements.
Źródło:
Journal of Ecological Engineering; 2018, 19, 2; 149-153
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The correlation between the meteorological conditions and the concentration of radionuclides in the ground layer of atmospheric air
Autorzy:
Krajny, E.
Ośródka, L.
Wojtylak, M.
Michalik, B.
Skowronek, J.
Powiązania:
https://bibliotekanauki.pl/articles/148116.pdf
Data publikacji:
2001
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
atmospheric air
meteorology
neural network
radionuclides
Opis:
The main goal of this work was to find correlation between the concentrations of radionuclides in outdoor air and the meteorological conditions like: air temperature, atmospheric pressure, wind velocity and amount of precipitation. Because the sampling period of radionuclides concentrations in air was relatively long (7 days), the average levels of meteorological parameters have been calculated within the same time. Data of radionuclide concentrations and meteorological data have been analyzed in order to find statistical correlation. The regression analysis and one of the AI methods, known as neural network, were applied. In general, analysis of the gathered data does not show any strong correlation between the meteorological conditions and the concentrations of radionuclides in air. A slightly stronger correlation we found for radionuclides with relatively short half-lives. The only positive correlation has been found between the Be-7 concentration and air temperature (at the significance level á=0.05). In our opinion, the lack of correlation was caused by a too long sampling time in measurements of radionuclides in outdoor air (a whole week). Results of the analysis received by means of the artificial neuron network are better. We were able to find certain groups of meteorological conditions, related with the corresponding concentrations of particular radionuclides in air. Preliminary measurements of radon progeny concentration support the thesis that the link between changes of meteorological parameters and concentrations of radionuclides in ambient air must exist.
Źródło:
Nukleonika; 2001, 46, 4; 189-194
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The airborne radioactivity and electrical properties of ground level air
Autorzy:
Mysłek-Laurikainen, B.
Matul, M.
Mikołajewski, S.
Trzaskowska, H.
Kubicki, M.
Powiązania:
https://bibliotekanauki.pl/articles/148122.pdf
Data publikacji:
2001
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
aerosols
air monitoring
radioelectricity
radionuclides
Opis:
The data presented in this work are the result of systematic measurements of radionuclide concentrations in air, collected with an ASS-500 high volume air sampler of the ground air monitoring network supervised by the Central Laboratory of Radiological Protection. Sampling has been done since March 1991. Simultaneously, the routine complex meteorological observations were performed. In particular, the electrical properties of ground level atmospheric air were studied with measurements of electrical field intensity, positive and negative conductivity of air and density of vertical current. The airborne 7Be concentration changes similarly to the electrical conductivity of air, while other isotopes, antropogenic or originating from the ground are correlated with dust and other meteorological factors like watering and wind.
Źródło:
Nukleonika; 2001, 46, 4; 195-197
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technologically enhanced naturally occurring radioactive materials in the oil industry (TENORM).
Autorzy:
Bou-Rabee, F.
Al-Zamel, A. Z.
Al-Fares, R. A.
Bem, H.
Powiązania:
https://bibliotekanauki.pl/articles/146466.pdf
Data publikacji:
2009
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
oil industry
radiation exposure
radionuclides
Opis:
A large amount of naturally occurring radioactive materials in the form of by-products or waste is produced annually by the growing activity of the oil and gas industry. Solid scale, sludge and produced water are typical residues contaminated with natural radionuclides from the uranium and thorium series, particularly 226Ra and 228Ra. The observed specific activities of these radionuclides are in the ranges up to 3700 kBq/kg and up to 168 kBq/kg for solid scale and sludge, respectively. The average activities of both radionuclides exceed the exemption level of 10,000 Bq/kg recommended by IAEA safety standards. This means that TENORM wastes from the oil industry may generate radiation exposure levels which require attention and continuous monitoring during some routine operations in this industry. This exposure is mostly caused by external gamma radiation coming from the 226Ra radionuclide and its progenies.
Źródło:
Nukleonika; 2009, 54, 1; 3-9
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spektrometryczne profilowanie gamma w odsłonięciach geologicznych : metody i przykłady zastosowania
Handheld gamma-ray spectrometry at geological exposures : methods and applications
Autorzy:
Moskalewicz, Damian
Powiązania:
https://bibliotekanauki.pl/articles/20199952.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
ręczna spektrometria
promieniowanie gamma
radionuklidy
promieniotwórczość naturalna
geofizyka
Bornholm
handheld gamma-ray spectrometry
radionuclides
natural radioactivity
geophysics
Opis:
Handheld gamma-ray spectrometry (hGRS) is a valuable method for geological studies. It may be applied in correlations between well-logging and outcrop strata, enhance interpretations of sedimentological data, prospect radiogenic ores and geothermal resources, and identify radiogenic hazards for society. This paper aims to review and popularize one of the research methods based on a mobile device (hGRS) equipped with a BGO (bismuth germanium oxide) scintillator. The general concept of the research method is presented in this paper. The method's perspectives and limits based on reviewed literature. Advantages of hGRS include, e.g., low cost, short data acquisition time, the possibility of studying natural exposures, and a broad set of research applications. The main disadvantages comprise relatively modest resolution of acquired data and their difficult interpretation in complex geological formations. The review is backed by sample measurements performed in various geological exposures at Bornholm Island (Baltic Sea). Measurements comprised igneous rocks exposed in several quarries and sedimentary profiles near Liesti Valley and Muleby.
Źródło:
Przegląd Geologiczny; 2022, 70, 11; 806-815
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Specific Activity of Radionuclides in Soils Disturbed by Forest Fires
Autorzy:
Popovych, Vasyl
Henyk, Yaroslav
Gapalo, Andriy
Bosak, Pavlo
Popovych, Nataliya
Powiązania:
https://bibliotekanauki.pl/articles/2105292.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
forest fire
fire danger
radionuclides
soil pollution
Opis:
Fires in natural ecosystems have a detrimental effect on all biota components. In the global scale, many scientific studies of prominent scientists are devoted to this topic. It should be noted that scientists have always been interested in the influence of thermal destruction of soil genetic horizons on the specific activity of radionuclides. Most of these studies began after the Chernobyl (1986) and Fukushima (2011) radiation disasters. The conducted research is focused on the specific activity of radionuclides due to the thermal effects of fires in natural ecosystems. It has been established that the edaphotopes affected by fires are naturally restored causing the restoration of soil formation processes. The specific activity of radionuclides decreases with the duration of the ground fire. Comparing the obtained data with the regulatory documentation, it was found that they do not exceed the minimum significant activity of radionuclides in the workplace. However, the increased activity of radionuclides in soils has a detrimental effect on the ecological condition and flora and fauna development. During the fire season in natural ecosystems and forests, careless handling of fire should be avoided and preventive measures should be taken to inform the public about the harmful effects of wildfire.
Źródło:
Journal of Ecological Engineering; 2022, 23, 6; 265--270
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sources of environmental radionuclides and recent results in analyses of bioaccumulation. A review
Autorzy:
Tykva, R.
Powiązania:
https://bibliotekanauki.pl/articles/147281.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
environmental radionuclides
sources
bioaccumulation
radioisotopes of heavy metals
Opis:
In principle, there are two sources of environmental radionuclides, namely natural and man-made. In comparison with other environmental pollutants as, e.g., heavy metals, some scientific and technical disciplines profit by the natural radionuclides, using them for age determination of the samples, e.g., hydrology, geology and archaeology. Nevertheless, the environmental radionuclides represent mostly risk for a human health. Therefore, in this review, their sources are shortly described and original recent analyses of some bioaccumulation methods are presented, using either selected plant species or microorganisms, respectively. The different uptakes in all systems were measured to evaluate the possibility of application of the tested biological materials as markers of environmental contamination. It was also demonstrated that the detection methods developed for analyses of bioaccumulation of environmental radionuclides could be applied in radiotracer methodology for a study of bioaccumulation of heavy metals. While gamma spectrometry for soil samples and liquid scintillation spectrometry for water samples were used, autoradiography was applied to analyze the distribution of radionuclides during and/or after bioaccumulation.
Źródło:
Nukleonika; 2004, 49,suppl.1; 3-7
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 54

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