Search

Your search keyword '"TÄHT-KOK KRISTA"' showing total 5 results
Start Over Author "TÄHT-KOK KRISTA"
5 results on '"TÄHT-KOK KRISTA"'

1. Quaternary deposits and weathered bedrock material as a source of dangerous radon emissions in Estonia

Author

Petersell Valter, Jüriado Krista, Raukas Anto, Shtokalenko Mihkel, and Täht-Kok Krista

Subjects
radon, uranium, klint, graptolite argillite, Quaternary deposits, till, Geology, QE1-996.5
Abstract

The risk of dangerous radon emissions in Estonia is high, being among the highest in Europe. In almost 33 per cent of Estonian land area, the content of radon in soil-contained air exceeds the safe limit for unrestricted construction (50 kBq/m3). In such high radon-risk areas the concentration of radon in soil-contained air ranges from 50 to 400 kBq/m3, in a few cases reaching up to 2,100 kBq/m3 exceeding the permitted level for residential areas. The situation is particularly serious in the northernmost part of the country, where uranium-rich graptolite argillite (Dictyonema shale) and the Obolus phosphorite are close to ground surface and their particles are constituent parts of Quaternary deposits. Radon emissions from bedrock have been investigated in detail, but to date Quaternary strata as a source of radon emissions are poorly studied. According to our measurements the highest concentrations of radon are related to tills containing clasts and fines of graptolite argillite and phosphorite. Glacial deposits include also granitoidal material, containing U, Th and K, which have been transported by glaciers from the outcrop areas of crystalline basement rocks in Finland and the Gulf of Finland. Due to weathering, outwash and repeated redeposition other genetic types are poorer in radioactive elements and they are weaker sources of radon.

Published
2015
Full Text
View/download PDF

3. European Atlas of Natural Radiation

Author

CINELLI GIORGIA, DE CORT MARC, TOLLEFSEN TORE, ACHATZ MICHAELA, AJTIĆ JELENA, BALLABIO CRISTIANO, BARNET IVAN, BOCHICCHIO FRANCESCO, BORELLI PASQUALE, BOSSEW PETER, BRAGA ROBERTO, BRATTICH ERIKA, BRIGANTI ALESSANDRA, CARPENTIERI CARMELA, CASTELLANI CARLO-MARIA, CASTELLUCCIO MAURO, CHIABERTO ENRICO, CIOTOLI GIANCARLO, COLETTI CHIARA, CUCCHI ANSELMO, DARAKTCHIEVA ZORNITZA, DI CARLO CHRISTIAN, DE FRANCE JENNIFER, DEHANDSCHUTTER BORIS, DOMINGOS FILIPA, DUDAR TAMARA, ELIO JAVIER, FALLETTI PAOLO, FERREIRA ANTONIO, FINNE INGVILD ENGEN, FONTANA CLAUDIA, FUENTE MERINO ISMAEL, GALLI GIANFRANCO, GARCIA-TALAVERA MARTA, GERMAN OLGA, GROSSI CLAUDIA, GRUBER VALERIA, GUTIERREZ-VILLANUEVA JOSE-LUIS, HANSEN MARIA, HERNANDEZ CEBALLOS MIGUEL ANGEL, HOFFMANN MARCUS, HURST STEFANIE, IURLARO GIORGIA, IVANOVA KREMENA, JOBBAGY VIKTOR, JONES ARWYN, KOVALENKO GRYGORIY, KOZAK KRZYSZTOF, LAWLEY RUSSELL, LEHNÉ ROUWEN, LISTER BOB, LONG STEPHANIE, LUCCHETTI CARLO, MAGNONI M., MATOLIN MILAN, MAZUR JADWIGA, MAZZOLI CLAUDIO, MCLAUGHLIN JAMES, MOLLO MARA, MOSTACCI DOMIZIANO, MUNDIGL STEFAN, NESBOR DIETER, NEVES LUIS, NEZNAL MATEJ, NIKOLOV JOVANA, NILSSON PER, NOGAROTTO ALESSIO, ONISCHENKO ALEKSANDRA, ORGIAZZI ALBERTO, PACHEROVÁ PETRA, PANAGOS PANAGIOTIS, PEREIRA ALCIDES, PEREZ MARIA DEL ROSARIO, POKALYUK VLADIMIR, PRESSYANOV DOBROMIR, QUINDÓS PONCELA LUIS SANTIAGO, RINGER WOLFGANG, ROSSI FRANCOIS, SANGIORGI MARCO, SASSI RAFFAELE, SIMIC ZDENKO, SMEDLEY PAULINE, SOCCIARELLI SILVIA, SOLIGO MICHELE, STOULOS STYLIANOS, SZABO KATALIN, TÄHT-KOK KRISTA, TODOROVIĆ NATAŠA, TOLTON RICHELLE, TUCCIMEI PAOLA, TURTIAINEN TUUKKA, TYE ANDREW, UDOVICIC V., VASILYEV ALEKSEY, VENOSO GENNARO, VERDELOCCO STEFANIA, VERKHOVTSEV VALENTYN, VOLTAGGIO MARIO, ZHUKOVA OLGA, ZHUKOVSKY MICHAEL, CINELLI GIORGIA, DE CORT MARC, and TOLLEFSEN TORE

Abstract

Natural ionizing radiation is considered as the largest contributor to the collective effective dose received by the world population. The human population is continuously exposed to ionizing radiation from several natural sources that can be classified into two broad categories: high-energy cosmic rays incident on the Earth’s atmosphere and releasing secondary radiation (cosmic contribution); and radioactive nuclides generated during the formation of the Earth and still present in the Earth’s crust (terrestrial contribution). Terrestrial radioactivity is mostly produced by the uranium and thorium radioactive families together with potassium. In most circumstances, radon, a noble gas produced in the radioactive decay of uranium, is the most important contributor to the total dose. This Atlas aims to present the current state of knowledge of natural radioactivity, by giving general background information, and describing its various sources. This reference material is complemented by a collection of maps of Europe displaying the levels of natural radioactivity caused by different sources. It is a compilation of contributions and reviews received from more than 80 experts in their field: they come from universities, research centres, national and European authorities and international organizations. This Atlas provides reference material and makes harmonized datasets available to the scientific community and national competent authorities. In parallel, this Atlas may serve as a tool for the public to: • familiarize itself with natural radioactivity; • be informed about the levels of natural radioactivity caused by different sources; • have a more balanced view of the annual dose received by the world population, to which natural radioactivity is the largest contributor; • and make direct comparisons between doses from natural sources of ionizing radiation and those from man-made (artificial) ones, hence to better understand the latter. Additional information at: https://remon.jrc.ec.europa.eu/About/Atlas-of-Natural-Radiation, JRC.G.10-Knowledge for Nuclear Security and Safety

Published
2019

4. Radon

Author

Cinelli, Giorgia, De Cort Marc, Tollefsen, Tore, Achatz, Michaela, Ajtić, Jelena, Ballabio, Cristiano, Barnet, Ivan, Bochicchio, Francesco, Borelli, Pasquale, Bossew, Peter, Braga, Roberto, Brattich, Erika, Briganti, Alessandra, Carpentieri, Carmela, Castellani, Carlo-Maria, Castelluccio, Mauro, Chiaberto, Enrico, Ciotoli, Giancarlo, Coletti, Chiara, Cucchi, Anselmo, Daraktchieva, Zornitza, Di Carlo, C., De France Jennifer, Dehandschutter, Boris, Domingos, Filipa, Dudar, Tamara, Elio, Javier, Falletti, Paolo, Ferreira, Antonio, Finne Ingvild Engen, Fontana, Claudia, Fuente Merino Ismael, Galli, Gianfranco, Garcia-Talavera, Marta, German, Olga, Grossi, Claudia, Gruber, Valeria, Gutierrez-Villanueva, Jose-Luis, Hansen, Maria, Hernandez Ceballos Miguel Angel, Hoffmann, Marcus, Hurst, Stefanie, Iurlaro, Giorgia, Ivanova, Kremena, Jobbagy, Viktor, Jones, Arwyn, Kovalenko, Grygoriy, Kozak, Krzysztof, Lawley, Russell, Lehné, Rouwen, Lister, Bob, Long, Stephanie, Lucchetti, Carlo, Magnoni, M., Matolin, Milan, Mazur, Jadwiga, Mazzoli, Claudio, Mclaughlin, James, Mollo, Mara, Mostacci, Domiziano, Mundigl, Stefan, Nesbor, Dieter, Neves, Luis, Neznal, Matej, Nikolov, Jovana, Nilsson, Per, Nogarotto, Alessio, Onischenko, Aleksandra, Orgiazzi, Alberto, Pacherová, Petra, Panagos, Panagiotis, Pereira, Alcides, Perez Maria Del Rosario, Pokalyuk, Vladimir, Pressyanov, Dobromir, Quindós Poncela Luis Santiago, Ringer, Wolfgang, Rossi, Francois, Sangiorgi, Marco, Sassi, Raffaele, Simic, Zdenko, Smedley, Pauline, Socciarelli, Silvia, Soligo, Michele, Stoulos, Stylianos, Szabo, Katalin, Täht-Kok, Krista, Todorović, Nataša, Tolton, Richelle, Tuccimei, Paola, Turtiainen, Tuukka, Tye, Andrew, Udovicic, V., Vasilyev, Aleksey, Venoso, Gennaro, Verdelocco, Stefania, Verkhovtsev, Valentyn, Voltaggio, Mario, Zhukova, Olga, and Zhukovsky, Michael

Subjects
natural radiation, atlas, joint research center, radon
Published
2019

5. European Atlas of Natural Radiation

Author

Achatz, Michaela, Ajtić, Jelena, Ballabio, Cristiano, Barnet, Ivan, Bossew, Peter, Brattich, Erika, Briganti, Alessandra, Castelluccio, Mauro, Chiaberto, Enrico, Cinelli, Giorgia, Coletti, Chiara, Cucchi, Anselmo, Daraktchieva, Zornitza, De Cort, Marc, Domingos, Filipa, Dudar, Tamara, Elío, Javier, Falletti, Paolo, Ferreira, Antonio, Finne, Ingvild, Fuente Merino, Ismael, García-Talavera, Marta, Gruber, Valeria, Gutiérrez, Villanueva, Hernandez-Ceballos, Miguel A., Hoffmann, Marcus, Iurlaro, Giorgia, Ivanova, Kremena, Jones, Arwyn, Kovalenko, Grygoriy, Kozak, Krzysztof, Lawley, Russell, Lehné, Rouwen, Lister, Bob, Lucchetti, Carlo, Magnoni, Mauro, Matolin, Milan, Mazur, Jadwiga, Mazzoli, Claudio, Mollo, Mara, Mostacci, Domiziano, Mundigl, Stefan, Nesbor, Dieter, Neves, Luis, Nikolov, Jovana, Nogarotto, Alessio, Onischenko, Aleksandra, Orgiazzi, Alberto, Pacherová, Petra, Panagos, Panos, Pokalyuk, Vladimir, Quindós, Poncela, Sassi, Raffaele, Soligo, Michele, Stoulos, Stylianos, Szabó, Katalin, Täht-Kok, Krista, Todorović, Nataša, Tollefsen, Tore, Tuccimei, Paola, Turtiainen, Tuukka, Tye, Andrew, Udovičić, Vladimir, Vasilyev, Aleksey, Verdelocco, Stefania, Verkhovtsev, Valentyn, Voltaggio, Mario, Zhukova, Olga, Zhukovsky, Michael, Cinelli, Giorgia, De Cort, Marc, Tollefsen, Tore, Bossew, Peter, and Gruber, Valeria

Subjects
Environment and climate change
Abstract

Natural ionizing radiation is considered as the largest contributor to the collective effective dose received by the world population. The human population is continuously exposed to ionizing radiation from several natural sources that can be classified into two broad categories: high-energy cosmic rays incident on the Earth’s atmosphere and releasing secondary radiation (cosmic contribution); and radioactive nuclides generated during the formation of the Earth and still present in the Earth’s crust (terrestrial contribution). Terrestrial radioactivity is mostly produced by the uranium and thorium radioactive families together with potassium. In most circumstances, radon, a noble gas produced in the radioactive decay of uranium, is the most important contributor to the total dose.This Atlas aims to present the current state of knowledge of natural radioactivity, by giving general background information, and describing its various sources. This reference material is complemented by a collection of maps of Europe displaying the levels of natural radioactivity caused by different sources. It is a compilation of contributions and reviews received from more than 80 experts in their field: they come from universities, research centres, national and European authorities and international organizations.This Atlas provides reference material and makes harmonized datasets available to the scientific community and national competent authorities. In parallel, this Atlas may serve as a tool for the public to: • familiarize itself with natural radioactivity;• be informed about the levels of natural radioactivity caused by different sources;• have a more balanced view of the annual dose received by the world population, to which natural radioactivity is the largest contributor;• and make direct comparisons between doses from natural sources of ionizing radiation and those from man-made (artificial) ones, hence to better understand the latter.Additional information at: https://remon.jrc.ec.europa.eu/About/Atlas-of-Natural-Radiation

Published
2019

Catalog

Books, media, physical & digital resources
See catalog results