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Tytuł:
Turystyka i urbanizacja jako elementy środowiskowych zagrożeń globalnych
Autorzy:
Korporowicz, Violetta
Powiązania:
https://bibliotekanauki.pl/articles/629981.pdf
Data publikacji:
2010
Wydawca:
Szkoła Główna Handlowa w Warszawie
Tematy:
Tourism, Urbanisation, Natural environment, Environmental pollution
Opis:
Tourism constitutes a voluntary change of place of stay, surrounding environment and rhythm of life, which a tourist expects will contribute to his or her development on various levels. Mass tourism is a similar phenomenon. However,  its larger scale may pose a threat to the natural environment comparable to the  impact of numerous industries or that of intensive agriculture.  Sustainable (green tourism) is a response to such threats. This type of tourism  is environmentally friendly in contrast to traditional (mass) tourism, which often  adversely affects the natural balance and disregards the needs of the natural  environment.  In turn, urbanization is a process entailing economic, spatial, social and cultural  changes contributing to the expansion of urban areas. This process is connected with industrialisation and causes migration of people from rural areas to cities in  search for employment in the service sector or industry.  Sustainable urbanisation is quite a new trend in urban development. This type  of urbanisation offers a number of economic benefits, such as reduction in energy  and water consumption, transport costs or costs of numerous services, including  medical, cultural, educational or those linked to lifestyle.  Th is paper describes tourism and urbanisation as mass processes which may have a negative impact on the natural environment. Additionally, the notions of sustainable urbanisation and sustainable tourism are presented as an alternative  to the chaotic urban development and undesirable ways in which tourism may  develop.  
Źródło:
Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace; 2010, 1; 133-150
2082-0976
Pojawia się w:
Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Police in the crisis management system during the Oder River mass fish die-off operations
Autorzy:
Kochańczyk, Rafał
Burniak, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/45491951.pdf
Data publikacji:
2023-07-25
Wydawca:
Akademia Policji w Szczytnie
Tematy:
crisis management
police
environmental pollution
cooperation
Opis:
The crisis management and critical infrastructure protection system is one of the most important elements of state security. Since ensuring safety requires constant supervision, it is necessary to carry out such activities by public administration bodies and institutions properly prepared for actions in crisis situations. The effi cient operation of state authorities depends to a large extent on an experienced administrative apparatus, developed procedures, and involvement of relevant services, inspections and guards. In the Polish crisis management system, an important role is played by the voivode, who is responsible not only for the state of government administration, but also for actually ensuring safety in the voivodeship. One of the main entities supporting the voivode in these activities is the Police, which in addition to their basic tasks in the fi eld of ensuring public safety and order, have the strength and means to act in crisis situations caused, i.a., by a natural disaster or a technical failure.
Źródło:
Przegląd Policyjny; 2023, 149(1); 274-296
0867-5708
Pojawia się w:
Przegląd Policyjny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Initial pro-antioxidant reactions in the patients suffering from cataract in the interactions with cadmium and lead
Autorzy:
Kempka, Katarzyna
Kamiński, Piotr
Malukiewicz, Grażyna
Bogdzińska, Maria
Florczak, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/1164124.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
cadmium
cataract
environmental pollution
lead
pro-antioxidant
Opis:
Cataract is one of the main causes of vision loss. So far, it has been found that one of the causes of cataract formation is the accumulation of heavy metals in ocular tissues and environmental pollution. Research material consisted of blood from healthy volunteers (n = 81; Mogilno Lakeland) and those suffering from cataract (n = 90) from Ophthalmology Clinic, Bydgoszcz (2013, 2016). Samples were prepared in order to obtain plasma, which was used to analyze Fe, Cu, Zn, Mn, Pb, Cd, and Hg concentration (ICP-MS). The purpose of this study is to show the interaction of cataract with cadmium and lead during initial pro-antioxidative reactions and to study element-element interactions. To this end, we analyzed physiological mechanisms that aim to stop the destructive effects of toxic metals. We have shown that the action of zinc, copper and manganese is antioxidant. Concentration of these elements is higher (α = 0. 05, p < 0.05) in the cataract group than in the control. We found interactions Fe-Cu-Zn-Mn-Pb-Cd-Hg. Cd and Pb show a negative effect on the eye tissue and generate pathophysiological changes leading to lens opacity and influence the destabilization of pro-antioxidant reactions. Correlations of elements in the control (Cd-Zn: R = 0.240; Cd-Cu: R = 0.316) and in the sick group (Cd-Cu; R = 0.329) were significant. On the basis of our research we found that there are numerous relationships between the concentrations of chemical elements in the patients with cataracts and the controls. Significant role of antagonisms with cadmium and lead has been demonstrated; these elements contribute to the gradual development of cataract. A correlation between elements exhibiting pro-antioxidant activity in the interactions with cadmium and lead (p=0.000) can be a source of cataract changes. The differences in Cd and Pb concentration and their interactions with elements between the control and sick groups can be considered as a factor for the development of cataract.
Źródło:
World Scientific News; 2018, 108; 195-206
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trends and prospects in management of mixed municipal waste and opportunities of its economic utilization
Autorzy:
Gąsior, D.
Powiązania:
https://bibliotekanauki.pl/articles/109191.pdf
Data publikacji:
2014
Wydawca:
AXIS MEDIA
Tematy:
municipal waste
utilization
waste treatment
environmental pollution
Opis:
In the face of intense development of our civilization, municipal waste contributes greatly to environmental pollution. In Poland, especially in large conurbations, municipal waste is a major category of waste. This paper discusses trends in municipal waste management, resulting from applicable standards in the European Union which are intended, fi rst of all, to minimize landfi lling. Problems relating to the handling of thermal processing and mechanical-biological treatment (MBT) of waste are described. Waste processing, intended to generate energy by co-combustion, is also presented. Moreover, this paper refers to the legal regulations that waste processing plants are expected to comply with.
Źródło:
Piece Przemysłowe & Kotły; 2014, 7-8 / 9-10; 36-41
2082-9833
Pojawia się w:
Piece Przemysłowe & Kotły
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance of Modified Slow Sand Filter to Reduce Turbidity, Total Suspended Solids, and Iron in River Water as Water Treatment in Disaster Areas
Autorzy:
Fitriani, Nurina
Wahyudianto, Febri Eko
Salsabila, Nada Fikna
Mohamed, Radin Maya Saphira Radin
Kurniawan, Setyo Budi
Powiązania:
https://bibliotekanauki.pl/articles/2202324.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Anadara granosa
environmental pollution
filtration
iron
silica
Opis:
This study aimed to determine the ability to modify slow sand filter (SSF) media with silica sand or Anadara granosa shells on the efficiency of removal of turbidity, total suspended solids (TSS), and iron in the water of Kali Jagir Surabaya as an effort to achieve clean water in disaster areas, to obtain the influence of variables, and to optimize the obtained results. The research data was processed using Design Expert 11 Software which factors consisted of media type, filtering speed, and running time, for the responses of removal efficiencies for each parameter. The reactor was operated continuously for 6 days, and samples were analyzed for turbidity parameters based on Indonesian standard (SNI 06-6989.25-2005); TSS and Iron Standard Method 23rd 3500A. In addition, the results of the parameters were processed using the Analysis of Variance (ANOVA) to show the significant effect of the variables on the efficiency of the elimination of all parameters. Optimal research was achieved in the SSF reactor unit with silica sand media type and filtering speed of 0.1 m/hour turbidity removal efficiency of 82.07%; TSS 89.5%; and 50.14% iron. However, the reactor that was chosen was the filtering speed of 0.1 m/hour with a flow rate of 22.8 L/day, while the SSF was suitable to be applied in disaster areas, which had a large discharge. Hence, the reactor is suitable for use in water sanitation in disaster areas, namely with a filtering speed of 0.3 m/hour which produces a discharge of 68.4 L/day with variations of sand, geotextile, and silica sand media.
Źródło:
Journal of Ecological Engineering; 2023, 24, 1; 1--18
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Segregation of waste at source reduces the environmental hazards of municipal solid waste in Patna, India
Autorzy:
Singh, A.
Raj, P.
Powiązania:
https://bibliotekanauki.pl/articles/204624.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
municipal solid waste
Patna
environmental pollution
logistic regression
Opis:
Though Municipal Solid Waste (MSW) is a worldwide problem, the collected wastes are dumped in open dumping at landfilling sites while the uncollected wastes remain strewn on the roadside, many-a-time clogging drainage. Such unsafe and inadequate management of MSW causes spread of bacteria, viruses, particulate matter, dioxins and other harmful pollutants in the surroundings and atmosphere. Hence, due to the repeated exposure of population to these pollutants can lead to serious health problems such as Diarrhea/Dysentery, Acute Respiratory Infection (ARI), and Asthma/Chronic Respiratory Diseases (CRD). Therefore, two-phase study included secondary data on diseases caused due to environmental pollution and primary data on MSW and lack of MSW management from 127 households in urban Patna, India. The random sampling method was used for collection of primary survey data, conducted during 2015–16 in selected areas of Patna. Logistic regression model odds ratios and their 95% confidence intervals were used to show the strength of the associations among segregation of wastes at source, segregation behavior, collection bins in the area, distance of collection bins from a residential area, and transportation of MSW. The ROC is a statistical technique to validate the logistic regression method that predicts the occurrence of an event through the comparison of probability picture of an event occurrence observed by probability and the predicted probability of the same event. The area under the ROC curve is up to 0.889 extent, which reveals that the ‘segregation of waste at source’ has a very strong scope to accomplish sustainable recycling at urban Patna in order to manage waste with the overall accuracy of 92.126%, which proves a better fi t logistic regression model. Hence, this paper concludes that ‘segregation of waste at source’ helps to attain sustainable recycling which would be the most viable approach to manage MSW in Patna and would eventually reduce environmental pollutants for the public health safety.
Źródło:
Archives of Environmental Protection; 2018, 44, 4; 96-110
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of green logistics in the construction of sustainable supply chains
Autorzy:
Pham, Nguyen Dang Khoa
Dinh, Gia Huy
Pham, Hoang Thai
Kozak, Janusz
Nguyen, Hoang Phuong
Powiązania:
https://bibliotekanauki.pl/articles/34606725.pdf
Data publikacji:
2023
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
green logistics
supply chain
environmental pollution
sustainable development
Opis:
The global supply chain has been growing strongly in recent years. This development brings many benefits to the economy, society, and human resources in each country but also causes a large number of concerns related to the environment since traditional logistics activities in the supply chain have been releasing a significant amount of emissions. For that reason, many solutions have been proposed to deal with these environmental pollution problems. Among these, three promising solutions are expected to completely solve environmental problems in every supply chain: (I) Application of blockchain in the supply chain, (II) Use of renewable energy and alternative fuels, and (III) Design of a closed supply chain. However, it seems to lack a comprehensive study of these solutions aiming to overcome the drawbacks of traditional logistics. Indeed, this work focuses on analyzing and evaluating the three above-mentioned solutions and the impacts of each solution on solving problems related to traditional logistics. More importantly, this work also identifies critical factors and challenges such as policies, laws, awareness, and risks that are found to be remarkable difficulties in the shifting progress of traditional logistics to green logistics. Finally, directions for developing and deploying green solutions to the logistics, supply chain, and shipping sectors toward decarbonization strategies and net-zero goals are discussed in detail.
Źródło:
Polish Maritime Research; 2023, 3; 191-211
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zanieczyszczenie środowiska naturalnego przez samochody ciężarowe
Natural pollution by trucks
Autorzy:
Mysłowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/314166.pdf
Data publikacji:
2011
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
samochód ciężarowy
zanieczyszczenie środowiska
truck vehicle
environmental pollution
Opis:
W artykule przedstawiono zagrożenia dla środowiska naturalnego powodowane przez ciągle rosnący ruch samochodów ciężarowych w obrębie aglomeracji miejskich i poza ich granicami. Dynamiczny rozwój wielu gałęzi przemysłu oraz konieczność przemieszczania znacznych mas towarów oraz ludzi powoduje wzrost ilości środków transportu oraz niestety postępującą degradacje terenów w pobliżu dróg i innych elementów infrastruktury. Omówiono poszczególne szkodliwe składniki związane z eksploatacją pojazdów ciężarowych oraz ich negatywny wpływ na życie ludzi i funkcjonowanie ekosystemu w Polsce. Na podstawie dostępnych danych i badań przedstawiono metody monitoringu i ochrony środowiska.
Paper presents natural environment by continuously within agglomeration city cause growing movement (traffic) truck and affectation of their borders. Dynamic development many branch of industry and necessity of relocation of mass of considerable commodity and incrementation of amount of center of transport causes people and unfortunately, degradations of fields near ways progressing and other elements of infrastructures. Exploitation of truck vehicle discuss individual harmful components related with and negative influence on life of people and functioning in Poland eko-system. On base available data it present methods of monitoring research and environmental protection.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2011, 12, 5; 312-317
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Comprehensive Environmental Pollution Index of Kurichi Industrial Cluster, Coimbatore District, Tamil Nadu, India – a Case Study
Autorzy:
Rajamanickam, R.
Nagan, S.
Powiązania:
https://bibliotekanauki.pl/articles/125482.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
comprehensive environmental pollution index
Kurichi industrial cluster
Coimbatore
Opis:
Comprehensive Environmental Pollution Index (CEPI) is a rational number to characterize the quality of the environment at a given location following the algorithm of source, pathway, and receptor. As CEPI increases, there will be adverse effects on the receiving environment. Central Pollution Control Board (CPCB) has brought out revised criteria for evaluation of CEPI by replacing the criteria issued in 2010. The revised criteria are issued to overcome the subjectivity factors of health impact studies on humans, flora and fauna. Kurichi Industrial Cluster in Coimbatore District is an engineering industrial estate housing foundries, forging units, metal finishing and fabrication units. In January 2010, the Ministry of Environment and Forests, Government of India declared Kurichi as critically polluted area and imposed moratorium on new projects and for expansion of the existing units. This declaration was made based on the CEPI score which was calculated as more than 70. Thereafter, the industries and the local stake holders have implemented various pollution control measures and hence the CEPI score has come down less than 70 and so the moratorium was lifted in October 2010. In this paper, the CEPI score is calculated based on the revised criteria and using the environmental quality monitoring data collected in April 2017. It is found that the CEPI score is below 70 which imply that the industrial units are operating and maintaining the pollution control measures consistently. However, taking a policy decision based on the CEPI score, one should be cautious on the adequacy of data and the parameters selected.
Źródło:
Journal of Ecological Engineering; 2018, 19, 1; 191-199
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investment projects - Their role in the sustainable economic development
Autorzy:
Durmishi, Veronika
Cipi, Eva
Powiązania:
https://bibliotekanauki.pl/articles/1035677.pdf
Data publikacji:
2010
Wydawca:
Academicus. International Scientific Journal publishing house
Tematy:
investment
sustainable development
rehabilitation
sea salt
ecosystem
environmental pollution
Opis:
Characteristic of “sustainable development” is in the “recognition” of the environment as an element, outside of which cannot be thought of overall development of a society. In this article will be treated the rehabilitation project of salt production in Vlore which is the only activity of this type in Albania and the largest in the Balkans. The industry of salt Production in Vlore is part of one of the branches of industry that can contribute in an important way in the national production and in the improvement of the balance of imports-exports. This project is done for two reasons: 1. Technologies used in Albania are of a very old level 2. The current productivity is very low compared with the industrialized countries. This investment project apart from the impact to a sustainable development for the area it also presents a series of other values such as: - Saline can provide water surface which are important for the moderation of climate and air quality. - In the period of their return to their previous conditions they can turn into Lagoons of great value; - Saline serve as a tool for the regulation of flooding in the area in which they are located;
Źródło:
Academicus International Scientific Journal; 2010, 01; 60-71
2079-3715
2309-1088
Pojawia się w:
Academicus International Scientific Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urban mining: Phytoextraction of noble and rare earth elements from urban soils
Górnictwo miejskie: fitoekstrakcja pierwiastków ziem szlachetnych i rzadkich z gleb miejskich
Autorzy:
Gawroński, Stanisław
Łutczyk, Grzegorz
Szulc, Wiesław
Rutkowska, Beata
Powiązania:
https://bibliotekanauki.pl/articles/2173771.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
platinum group elements
soil
environmental pollution
phytomining
phytoremediation
roads
Opis:
The increasing demand for noble metals boosts their price. In order to meet the increasing demand for elements, a number of technologies are being developed to recover elements already present in the environment. Traffic-related metal pollution is a serious worldwide concern. Roadside soils are constantly subjected to the deposition of metals released by tailpipe gases, vehicle parts, and road infrastructure components. These metals, especially platinum group elements from catalytic converters, accumulating in the soil pose a risk both for agricultural and residential areas. Phytomining is suggested as a novel technology to obtain platinum group metals from plants grown on the contaminated soil, rock, or on mine wastes. Interest in this method is growing as interest in the recovery of rare metals is also increasing. Based on the research of many authors, the sources and amounts of noble metals that accumulate in soil along communication routes have been presented. The paper presents also plants that can be used for phytomining.
Aby sprostać rosnącemu zapotrzebowaniu na metale szlachetne poszukuje się technologii odzyskiwania pierwiastków już obecnych w środowisku. Gromadzące się w glebie metale, zwłaszcza pierwiastki z grupy platynowców pochodzące z katalizatorów, stanowią zagrożenie dla środowiska. Fitoekstrakcja jest technologią wykorzystywaną do pozyskiwania metali z grupy platynowców z roślin rosnących na zanieczyszczonej glebie, skale lub odpadach kopalnianych. Zainteresowanie tą metodą rośnie wraz ze wzrostem zainteresowania odzyskiem metali rzadkich. Na podstawie wyników badań różnych autorów przedstawiono ilości metali szlachetnych gromadzących się w glebie wzdłuż szlaków komunikacyjnych. W pracy przedstawiono także rośliny, które można wykorzystać do fitoekstrakcji.
Źródło:
Archives of Environmental Protection; 2022, 28, 2; 24--33
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent Progress of Phytoremediation-Based Technologies for Industrial Wastewater Treatment
Autorzy:
Yuliasni, Rustiana
Kurniawan, Setyo Budi
Marlena, Bekti
Hidayat, Mohamad Rusdi
Kadier, Abudukeremu
Ma, Peng Cheng
Imron, Muhammad Fauzul
Powiązania:
https://bibliotekanauki.pl/articles/2202323.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
aquatic plant
constructed wetland
environmental pollution
industrial wastewater
phytoremediation
Opis:
Phytoremediation is considered of a cost effective and environmentally friendly technology and has been used successfully for the remediation of soils and water contaminated with various pollutants. Specifically for full scale application to treat industrial wastewater, phytoremediation is used as sole technology for different types of wetlands. However, phytoremediation of polluted water in wetland type reactor has been mostly studied as black box. The method to measure the performance is only based on pollutant removal efficiency and there is very limited information available about of the pollutant removal mechanisms and process dynamics in these systems. Thus, the aim of this chapter was to briefly review basic processes of phytoremediation, its mechanisms and parameters, and its interaction between rhizo-remediation and microbe-plant. In addition, this chapter also elaborated phytoremediation challenges and strategies for full-scale application, its techniques to remove both organic and inorganic contaminants by aquatic plants in water, and some examples of applications in industries.
Źródło:
Journal of Ecological Engineering; 2023, 24, 2; 208--220
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zanieczyszczenie środowiska naturalnego przez działalność rolniczą w opinii mieszkańców wsi
The environmental pollution related to agriculture in the opinion of rural areas dwellers
Autorzy:
Augustyńska-Prejsnar, A.
Ruda, M.
Powiązania:
https://bibliotekanauki.pl/articles/239294.pdf
Data publikacji:
2006
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
rolnictwo
zanieczyszczenie środowiska
świadomość ekologiczna
agriculture
environmental pollution
ecological consciousness
Opis:
Analiza wiedzy rolników konwencjonalnych na temat zanieczyszczeń środowiska naturalnego oraz otoczenia rolnictwa przez działalność rolniczą pozwala stwierdzić, że jest ona niewystarczająca. Z badań wynika, że większą uwagę na zagrożenia równowagi środowiskowej wynikającej z intensywnej gospodarki rolnej, zwracają rolnicy o wyższym poziomie wykształcenia.
Analysis of conventional farmers' knowledge about pollution of the natural environment and the neighbourhood of agriculture entitles one to state that the level of that knowledge is insufficient. It follows from the research that farmers with higher level of education pay more attention to issues concerning hazards to environmental equilibrium posed by intensive farming.
Źródło:
Problemy Inżynierii Rolniczej; 2006, R. 14, nr 1, 1; 143-150
1231-0093
Pojawia się w:
Problemy Inżynierii Rolniczej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioaccumulative and bioindicative role of fungi in the environment
Bioakumulacyjna i bioindykacyjna rola grzybów w środowisku
Autorzy:
Moliszewska, E.
Dołhańczuk-Śródka, A.
Ziembik, Z.
Maculewicz, D.
Nagrodzka, K.
Powiązania:
https://bibliotekanauki.pl/articles/126928.pdf
Data publikacji:
2015
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
mushrooms
radionuclides
environmental pollution indication
grzyby
radionuklidy
indykacja zanieczyszczeń środowiska
Opis:
Mycelial construction of mushrooms is considered as a good biomass for heavy metals binding as well as lots of elements, including toxic and radioactive ones. Between various fungi known to bind heavy metals, mycelium of Pleurotus spp. can be used in Cd indication and accumulation, by means of fungal biomass. In this work possible role of Pleurotus ostreatus in accumulation of radionuclides is presented. This is important because this fungus is one of broadly cultivated mushrooms, and it can grow as saprobic organism on various substrates. Naturally occurring fruiting bodies of P. ostreatus were used in studies as a potential marker of atmospheric radioactive pollution. The samples of fruiting bodies in different age (young, mature and old) were collected in the center of Opole. Measurements of the gamma radionuclides activity concentration in dried samples were carried out by means of a gamma-spectrometer with a germanium detector HPGe (Canberra) of high resolution. Potassium concentration in fruiting bodies was similar in each sample, though it was the lowest in the young specimen. Activity concentration of Cs-137 was also related with the age of the mushroom. The biggest concentration was determined in old specimen, while in the young and mature ones it was similar. In the mature and old mushrooms activity concentration of Pb-210 was lower than minimum detectable activity. Pb-212 was determined only in fruiting bodies of old specimen
Grzybnia, szczególnie grzybów wielkoowocnikowych, dzięki zdolności do akumulowania metali ciężkich stanowi potencjalne źródło informacji o zanieczyszczeniu środowiska. Wśród nich należy wymienić boczniaka (Pleurotus osteratus), grzyba zarówno uprawnego, jak i występującego naturalnie. W pracy wykonano analizę zdolności bioindykacyjnych i biokumulacyjnych tego gatunku w stosunku do izotopów gamma-promieniotwórczych. Próbki P. osteratus w różnym wieku (młode, dojrzałe, starzejące) zebrano w naturalnym stanowisku, w centrum Opola. Aktywności izotopu K-40 były podobne we wszystkich badanych próbkach, przy czym najniższa koncentracja tego izotopu została stwierdzona w najmłodszych owocnikach. Izotop Cs-137 najliczniej występował w najstarszych owocnikach. Radioizotop Pb-210 znaleziono w młodych owocnikach, a izotop Pb-212 stwierdzono w starych owocnikach
Źródło:
Proceedings of ECOpole; 2015, 9, 1; 117-123
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nitrate reductase activity in chosen mosses: a case of study in skalny colliery waste tip
Aktywność reduktazy azotanowej u wybranych mchów na przykładzie hałdy powęglowej skalny
Autorzy:
Krywult, M.
Salachna, A.
Chmura, D.
Żarnowiec, J.
Powiązania:
https://bibliotekanauki.pl/articles/106622.pdf
Data publikacji:
2013
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
bryophytes
nitrogen fixation
environmental pollution
mszaki
wiązanie azotu
zanieczyszczenie środowiska
Opis:
Two species of mosses in relation to nitrogen metabolism were examined. This subject is little known in this group of plant. Investigations of nitrate reductase activity in green tissues of Brachythecium rutabulum (Hedw.) Schimp. and Atrichum undulatum (Hedw.) P.Beauv. were performed. The study was conducted in two localities: heavy contaminated waste tip Skalny located in Upper Silesia, and Blonia City Park in Bielsko-Biala which place was chosen as a control area. For both species high activity of the enzyme was detected. The nitrate reductase activity varied between 99 to 9093 nmol per g dry mass per hour for B. rutabulum and 265 to 5135 nmol per g d.m. per hour of nitrite synthesized for A. undulatum respectively on Skalny waste tip. In the control area the results varied between 747 to 1077 for B. rutabulum and 171 to 518 nmol per g d.m. per hour of nitrite synthesized for A. undulatum, respectively. The differences were statistically significant only between the two species but not between habitats probably due to high dispersion and small amount of replications. The levels of nitrate and nitrite in stream water in both areas were also measured. In the Skalny waste tip there were high and reached 1.66 mg dm-3 of nitrite and 65 mg dm-3 of nitrate, respectively. In the control area these amounts were lower and reach zero level for nitrite and 4.5 mg dm-3 of nitrate, respectively.
Dwa gatunki mchów badano pod kątem asymilacji azotu. To zagadnienie jest mało poznane u tej grupy roślin. Przeprowadzono badania aktywności reduktazy azotanowej w zielonych tkankach Brachythecium rutabulum (Hedw.) Schimp. i Atrichum undulatum (Hedw.) P.Beauv. Badania zostały wykonane w dwóch miejscach: na hałdzie powęglowej Skalny na Górnym Śląsku i w parku w dzielnicy Błonia w Bielsku-Białej, które zostało wybrane jako miejsce kontrolne. Dla obu gatunków stwierdzono wysoką aktywność enzymu. Aktywność reduktazy azotanowej wahała się od 99 do 9093 nmol na g suchej masy na godzinę dla B. rutabulum i 265 do 5135 nmol na g suchej masy na godzinę azotynu syntetyzowanego u A. undulatum na hałdzie Skalny. W miejscu kontrolnym wyniki wahały się od 747 do 1077 dla B. rutabulum i 171 do 518 nmol na g sm/h u A. undulatum. Różnice były statystycznie znaczące tylko pomiędzy gatunkami, ale nie pomiędzy typem siedliska prawdopodobnie ze względu na wysoką dyspersję i małą liczbę powtórzeń. Zmierzono także poziom azotanów i azotynów w strumieniu wody w obu miejscach. Na hałdzie Skalny zawartość była wysoka i osiągnęła odpowiednio: 1,66 mg dm-3 azotynu oraz 65 mg dm-3 azotanu. W miejscu kontrolnym wartości te były niższe i osiągnęły odpowiednio poziom zerowy dla azotynów i 4,5 mg dm-3 dla azotanu.
Źródło:
Chemistry-Didactics-Ecology-Metrology; 2013, 18, 1-2; 61-68
2084-4506
Pojawia się w:
Chemistry-Didactics-Ecology-Metrology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 206

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