Significant radioactive contamination of soil around a coal-fired thermal power plant

Papp, Zoltán; Dezső, Z.; Daroczy, S.

doi:10.1016/s0265-931x(01)00071-6

Cited by 113 publications

(31 citation statements)

References 11 publications

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“…The ratio 238 U/ 226 Ra has an increasing trend towards the coldest side. These results are consistent with those of Coles et al (1978) and Weng and Chu (1992), for coal-fired power plants, according to which, the ratio 238 U/ 226 Ra has higher values in the smaller particles of fly-ash, that are collected in the coldest Papp et al (2002), this is expected because the enrichment of 238 U in the smaller size fraction of ash is higher than that of 226 Ra, because the compounds of U are more volatile than those of Ra. Manolopoulou and Papastefanou (1992) reported experimental results regarding the 238 U, 210 Pb and the 226 Ra activity concentrations for the fly-ash at the preheaters and the ESP, for a Greek lignite-fired power plant located in the Ptolemais region in Northern Greece.…”

Section: Natural Radioactivity and Secular Radioactive Equilibrium DIsupporting

confidence: 89%

Radiological characteristics and investigation of the radioactive equilibrium in the ashes produced in lignite-fired power plants

Karangelos

Petropoulos

Anagnostakis

et al. 2004

Journal of Environmental Radioactivity

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Section: Natural Radioactivity and Secular Radioactive Equilibrium DIsupporting

confidence: 89%

Radiological characteristics and investigation of the radioactive equilibrium in the ashes produced in lignite-fired power plants

Karangelos

Petropoulos

Anagnostakis

et al. 2004

Journal of Environmental Radioactivity

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“…Many research works have been carried out on radio-activity measurement throughout the world [1,3,7,11]. Here in Nigeria, Tchokossa and his co-workers reported the results of many investigations on the distribution of radioactivity content in various environmental matrices [12][13][14][15][16][17][18][19], while in Cameroon, Makon et al carried out similar research in some edible vegetable cultivated and consumed worldwide [20].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Radioactivity Contents and Associated Risks in Some Soil Used for Agriculture and Building Materials in Cameroon

Tchokossa¹,

Makon²,

Nemba³

2012

JEP

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A survey of radioactivity content and associated radiological risks was carried out in various soils used for agriculture and building materials in Cameroon by means of a well-calibrated high-purity germanium detector. Soil samples were collected directly from the agricultural farms and the brick's factories, air-dried at room temperature to a constant mass, crushed, sieved and sealed for at least one month before analysis. The specific activity of 238 U ranged from 5.36 ± 0.39 to 51.28 ± 9. ; The mean result obtained for the Representative levels index (I  ), the radium equivalent (Ra eq ), the total absorbed dose rate (ADR), the external hazard index (H ex ), the internal hazard index (H in ) and the Ceasium intervention levels were 0.52, 72.75 Bq·kg , 0.29 Bq·kg −1 and 0.0028 Bq·cm 2 respectively. The discrepan-cies of our data can be attributed to several factors such as past nuclear disasters, geological formation, transport process, etc. Although our results are just some fractions of the international standard limit, but still within the same ranges when compared with those obtained elsewhere. This results also will serve as a baseline data for future inves-tigations.

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“…1), because U vary between 0.5 and 10 mg kg −1 in coal (Gentzis and Goodarzi 2000). In the process of combustion, this radionuclide is distributed in solid and gaseous combustion products and accumulates in ash (Papp et al 2002). For this reason, detectable values of uranium are expected to be found in the ash produced by CPP and in the emitted atmospheric particulate.…”

Section: Introductionmentioning

confidence: 99%

Gaseous and PM10-Bound Pollutants Monitored in Three Sites with Differing Environmental Conditions in the Venice Area (Italy)

Rampazzo¹,

Masiol²,

Visin³

et al. 2008

Water Air Soil Pollut

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Understanding and controlling air pollution in highly populated areas is very important, although interpreting the levels of gaseous pollutants and airborne particulate matter is complicated by dominant natural and anthropogenic emissions, micrometeorological processes, and chemical reactions which take place directly in the atmosphere. For this reason, it is very difficult to relate the characteristics of air pollution to one or more specific emission sources. The aim of this paper is to detect associations among elements and organic compounds emitted from specific sources by means of chemical analyses, statistical processing of data, seasonal evolution study, and geochemical considerations to trace their origin. A detailed characterization of air quality during the period September 2000-September 2001 was carried out in three locations of the Venice region: A heavy traffic urban site, a public park, and the island centre of the city of Venice. Twenty-eight inorganic elements, four polycyclic aromatic hydrocarbons, CO and benzene were quantified and processed by a statistical procedure based on factor analysis considering variations on a seasonal basis. Results show the presence of associations between elements and compounds with the same behaviour in all sampling points. This indicates that several pollutants originate from a common source, and are then "diluted" throughout the study area, maintaining the imprint of their origin. Pt, polycyclic aromatic hydrocarbons, CO and benzene originating from the exhaust gas of vehicles are all linked in the traffic factor, whereas Cd is associated with Se, having a common source in industrial processes.

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Significant radioactive contamination of soil around a coal-fired thermal power plant

Cited by 113 publications

References 11 publications

Radiological characteristics and investigation of the radioactive equilibrium in the ashes produced in lignite-fired power plants

Radiological characteristics and investigation of the radioactive equilibrium in the ashes produced in lignite-fired power plants

Assessment of Radioactivity Contents and Associated Risks in Some Soil Used for Agriculture and Building Materials in Cameroon

Gaseous and PM10-Bound Pollutants Monitored in Three Sites with Differing Environmental Conditions in the Venice Area (Italy)

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