Search Results

1 - 10 of 20 items :

  • Energy Engineering x
Clear All
Changes of Isotopic Composition in Gases Emitted from Wastewater Treatment Plant - Preliminary Study

] Baggs EM. A review of stable isotope techniques for N 2 O source partitioning in soils: recent progress, remaining challenges and future considerations. Rapid Commun Mass Spectrom. 2008;22(11):1664-1672. DOI: 10.1002/rcm.3456. [30] Kuzyakov Y. How to link soil C pools with CO 2 fluxes? Biogeosciences. 2011;8(6):1523-1537. DOI: 10.5194/bg-8-1523-2011. [31] Busari MA, Salako FK, Tuniz C, Zuppi GM, Stenni B, Adetunji MT, et al. Estimation of soil water evaporative loss after tillage operation using the stable isotope technique. Int Agrophys. 2013;27(3):257-264. DOI

Open access
The Use Of Pb-210 Isotope As An Indicator Of Pollutants’ Migration In The Environment

. Influence of the parameters of models used to calculate soil erosion based on 137 Cs tracer. Geochronometria. 2009;32(1):21-27. http://www.geochronometria.pl/pdf/geo_32/Geo32_03.pdf . [29] Kelly RP, Moran SB. Seasonal changes in groundwater input to a well-mixed estuary estimated using radium isotopes and implications for coastal nutrient budgets. Limnol Oceanogr. 2002;47(6):1796-1807. http://aslo.info/lo/toc/vol_47/issue_6/1796.pdf . [30] Patrut A, von Reden KF, Van Pelt R, Mayne DH, Lowy DA, Margineanu D. Age determination of large live trees with inner

Open access
Investigation of committed radiation dose rate and relationships between alkaline metals concentrations in mushroom Xerocomus badius / Badanie wchłoniętej, skutecznej dawki promieniowania i zależności pomiędzy stężeniami metali alkalicznych w owocnikach Xerocomus badius

Abstract

The fruiting bodies of fungi sprout from mycelium are capable of accumulating significant amounts of trace elements, both metals and metalloids. Content of these elements in fruiting bodies may exceed their concentration in the substrate where fungi develop. Among the elements the radioactive nuclides are also present. In this work health risk caused by increased radioactivity dose absorbed with Xerocomus badius bay bolete consumption was estimated. In analysis concentrations of radioactive isotopes 137Cs and 40K were taken into consideration. It was found that moderate ingestion of bay bolete does not create health risk due to increased radioactive substances intake. The amount of consumed mushrooms that could deliver the dose exceeding the safe one, is rather improbable in real life. Possible relationships between radioactive isotopes concentrations and concentrations of common alkali metals were investigated using methods designed for compositional data analysis. No clear relationships between 137Cs, Ca, K and Mg concentrations in samples of bay bolete were found and significant influence of outlying data points on statistical inference was noticed.

Open access
Pb-210 Isotope as a Pollutant Emission Indicator / Izotop Pb-210 Jako Znacznik Emisji Zanieczyszczeń

Abstract

Passive biomonitoring using 210Pb was used in the paper to evaluate pollutant deposition. Well-developed epiphytic foliose lichens Hypogymnia physodes growing on spruce branches were used in the studies. The samples of mosses Pleurozium schreberi and soil (raw humus) were collected from the area around the tree from which the samples of lichens were collected. The studies have shown that it is possible to identify dust emission sources using a radioactive lead isotope (210Pb). The highest activity of 210Pb was observed in areas with increased deposition of other pollutants, such as Ni, Cd, Cu and Pb, which may indicate that 210Pb is one of the emission components

Open access
Operational Model for Atmospheric Transport and Deposition of Air Pollution/ Operacyjny Model Atmosferycznego Transportu I Depozycji Zanieczyszczeń

Abstract

An assessment of the current state of natural environment affected by air pollution, as well as, forecasts of pro-ecologic, economic and social activities are very often performed using models for atmospheric transport and deposition of air pollutants. In the present paper, we present an operational dispersion model developed at the Institute of Meteorology and Water Management in Warsaw. The basic assumptions and principles of the model are described together with the operational domain and examples of model applications. Two examples of model application are described and discussed here. The first, application is a simulation of the atmospheric transport and deposition of the radioactive isotopes released into the atmosphere during the Chernobyl Accident in 1998. The second example is related to simulation of atmospheric transport of the tracer released into the air during the ETEX experiment. These two examples and previous applications of the model showed that presented dispersion model is fully operational, not only for long term applications, but especially for emergency situations, like nuclear accidents or volcanic eruptions affecting Polish territory

Open access
Potential Use of Alluvial Groundwater for Irrigation in Arid Zones - Mhamid Oasis (S Morocco)

recharge and salinization sources of groundwater in the Oussja Ghar el Melah plain (northeast Tunisia) using geochemical tools and environmental isotopes. Environ Earth Sci. 2016;75:606. DOI: 10.1007/s12665-016-5431-x. [4] Fakharian K, Narany TS. Multidisciplinary approach to evaluate groundwater salinity in Saveh Plain, Iran. Environ Earth Sci. 2016;75:624. DOI: 10.1007/s12665-015-5104-1. [5] Wilcox LV. Classification and Use of Irrigation Water. USDA; 1955. https://www.ars.usda.gov/arsuserfiles/20360500/pdf_pubs/P0192.pdf

Open access
Hydrochemical Diversity of a Large Alluvial Aquifer in an Arid Zone (Draa River, S Morocco)

. Nitrate contamination of alluvial groundwater in the Ziz basin, southeastern Morocco. Mor J Chem. 2014;2:447-451. https://revues.imist.ma/?journal=morjchem&page=article&op=view&path%5B%5D=2417 . [4] Jilali A, Abbas M, Amar M, Zarhloule Y. Groundwater contamination by wastewater in Figuig Oasis (Eastern High Atlas, Morocco). Nature Environ Pollut Technol. 2015;14:275-282. http://www.neptjournal.com/upload-images/NL-52-10-(8)D-228.pdf . [5] Rochdane S, Reddy DV, El Mandour A. Hydrochemical and isotopic characterisation of Eastern Haouz plain groundwater

Open access
Assessment of Gamma Dose Rate at Mine Waste Dump

, Makhluf S, Nossair A, Abdel Halim AS. Assessment of natural radioactivity levels and radiation hazards due to cement industry. Appl Radiat Isotopes. 2010;68:169-174. DOI: 10.1016/j.apradiso.2009.09.001. [7] Faheem M, Mujahid SA, Matiullah M. Assessment of radiological hazards due to the natural radioactivity in soil and building material samples collected from six districts of the Punjab province-Pakistan. Radiat Meas. 2008;43:1443-1447. DOI: 10.1016/j.radmeas.2008.02.014. [8] Janković M, Todorović D, Savanović M. Radioactivity

Open access
Assessment of Intrinsic Biodegradation Potentials in an Aquifer Contaminated with Chlorinated Ethenes in the Vicinity of Nowa Deba

and Development; 1998. [8] Witt ME, Klecka GM, Lutz EJ, Ei TA, Grosso NR, Chapelle FH. Natural attenuation of chlorinated solvents at Area 6, Dover Air Force Base: groundwater biogeochemistry. J Contam Hydrol. 2002;57:61-80. DOI: 10.1016/S0169-7722(01)00218-2. [9] Nijenhuis I, Nikolausz M, Köth A, Felföldi T, Weiss H, Drangmeister J, et al. Assessment of natural attenuation of chlorinated ethenes in an anaerobic contaminated aquifer in the Bitterfeld-Wolfen area using stable isotope techniques, microcosm studies and molecular

Open access
The concept of well integrity in gas production activities

.1073/pnas.1100682108. [5] Molofsky LJ, Connor JA, Farhat SK, Wylie AS, Wager T. Methane in Pennsylvania water wells unrelated to Marcellus shale fracturing. Oil Gas J. 2011:54-67. http://www.ogj.com/1/vol-109/issue-49/exploration-development/methane-in-pennsylvania-water-full.html . [6] Sueker JK, Clark BL, Cramer GH. Isotopic Forensic Techniques for Methane Source Discrimination. Stray Gas Incidence & Response Forum, Cleveland, Ohio. July 23-25, 2012. www.ipec.utulsa.edu/conf2011/sueker-27.pdf . [7] Darrah TH, Vengosh A, Jackson RB, Warner NR, Poreda

Open access