Photo of Sven Poul Nielsen
  • Frederiksborgvej 399, 201, S58

    4000 Roskilde

    Denmark

1977 …2020

Research output per year

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Research Output

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Journal article
2020

A 40-year marine record of 137Cs and 99Tc transported into the Danish Straits: Significance for oceanic tracer studies

Qiao, J., Andersson, K. G. & Nielsen, S. P., 2020, In : Chemosphere. 244, 125595.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
97 Downloads (Pure)
2019

Airborne concentrations and chemical considerations of radioactive ruthenium from an undeclared major nuclear release in 2017

Masson, O., Steinhauser, G., Zok, D., Saunier, O., Angelov, H., Babic, D., Beckova, V., Bieringer, J., Bruggeman, M., Burbidge, C. I., Conil, S., Dalheimer, A., De Geer, L. -E., Ott, A. D. V., Eleftheriadis, K., Estier, S., Fischer, H., Garavaglia, M. G., Leonarte, C. G., Gorzkiewicz, K. & 49 others, Hainz, D., Hoffman, I., Hyza, M., Isajenko, K., Karhunen, T., Kastlander, J., Katzlberger, C., Kierepko, R., Knetsch, G. -J., Konyi, J. K., Lecomte, M., Mietelski, J. W., Min, P., Møller, B., Nielsen, S. P., Nikolic, J., Nikolovska, L., Penev, I., Petrinec, B., Povinec, P. P., Querfeld, R., Raimondi, O., Ransby, D., Ringer, W., Romanenko, O., Rusconi, R., Saey, P. R. J., Samsonov, V., Silobritiene, B., Simion, E., Soderstrom, C., Sostaric, M., Steinkopff, T., Steinmann, P., Sykora, I., Tabachnyi, L., Todorovic, D., Tomankiewicz, E., Tschiersch, J., Tsibranski, R., Tzortzis, M., Ungar, K., Vidic, A., Weller, A., Wershofen, H., Zagyvai, P., Zalewska, T., Garcia, D. Z. & Zorko, B., 2019, In : Proceedings of the National Academy of Sciences of the United States of America. 116, 34, p. 16750-16759

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
117 Downloads (Pure)

Background reduction at DTU Nutech surface gamma laboratory

Marković, N., Roos, P., Nielsen, S. P. & Cai, X. X., 2019, In : Applied Radiation and Isotopes. 151, p. 30-38

Research output: Contribution to journalJournal articleResearchpeer-review

File
172 Downloads (Pure)

Så meget radioaktivitet kan man måle i danskerne

Nielsen, S. P., 2018, In : videnskab.dk. 2018, april

Research output: Contribution to journalJournal articleCommunication

Open Access
2017

Anthropogenic 236U in Danish Seawater: Global Fallout versus Reprocessing Discharge

Qiao, J., Steier, P., Nielsen, S. P., Hou, X., Roos, P. & Golser, R., 2017, In : Environmental Science and Technology. 51, 12, p. 6867-6876 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
289 Downloads (Pure)

Digital gamma-gamma coincidence HPGe system for environmental analysis

Markovic, N., Roos, P. & Nielsen, S. P., 2017, In : Applied Radiation and Isotopes. 126, p. 194-196 3 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Low-level gamma-ray spectrometry for the determination of 210Pb

Markovic, N., Roos, P. & Nielsen, S. P., 2017, In : Journal of Radioanalytical and Nuclear Chemistry. 311, p. 1473–1478

Research output: Contribution to journalJournal articleResearchpeer-review

2016

Certified reference materials for radionuclides in Bikini Atoll sediment (IAEA-410) and Pacific Ocean sediment (IAEA-412)

Pham, M. K., van Beek, P., Carvalho, F. P., Chamizo, E., Degering, D., Engeler, C., Engeler, C., Gurriaran, R., Hanley, O., Harms, A. V., Herrmann, J., Hult, M., Ikeuchi, Y., Ilchmann, C., Kanisch, G., Kis-Benedek, G., Kloster, M., Laubenstein, M., Llaurado, M., Mas, J. L. & 14 others, Nakano, M., Nielsen, S. P., Osvath, I., Povinec, P. P., Rieth, U., Schikowski, J., Smedley, P. A., Suplinska, M., Sýkora, I., Tarjan, S., Varga, B., Vasileva, E., Zalewska, T. & Zhou, W., 2016, In : Applied Radiation and Isotopes. 109, p. 101–104

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
263 Downloads (Pure)
2015

Method for 236U Determination in Seawater Using Flow Injection Extraction Chromatography and Accelerator Mass Spectrometry

Qiao, J., Hou, X., Steier, P., Nielsen, S. P. & Golser, R., 2015, In : Analytical Chemistry. 87, 14, p. 7411-7417 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

2014

Rapid Multisample Analysis for Simultaneous Determination of Anthropogenic Radionuclides in Marine Environment

Qiao, J., Shi, K., Hou, X., Nielsen, S. P. & Roos, P., 2014, In : Environmental Science & Technology (Washington). 48, 7, p. 3935-3942

Research output: Contribution to journalJournal articleResearchpeer-review

2013

A simple model to estimate deposition based on a statistical reassessment of global fallout data

Palsson, S. E., Howard, B. J., Bergan, T. D., Paatero, J., Isaksson, M. & Nielsen, S. P., 2013, In : Journal of Environmental Radioactivity. 121, p. 75-86

Research output: Contribution to journalJournal articleResearchpeer-review

Release of iodine from organic matter in natural water by K2S2O8 oxidation for 129I determination

Dang, H., Hou, X., Roos, P. & Nielsen, S. P., 2013, In : Analytical Methods. 5, 2, p. 449-456

Research output: Contribution to journalJournal articleResearchpeer-review

Seasonal variation of technetium-99 in Fucus vesiculosus and its application as an oceanographic tracer

Shi, K., Hou, X., Roos, P., Wu, W. & Nielsen, S. P., 2013, In : Estuarine, Coastal and Shelf Science. 127, p. 24-28

Research output: Contribution to journalJournal articleResearchpeer-review

2012

Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program

Kenna, T. C., Masqué, P., Mas, J. L., Camara-Mor, P., Camizo, E., Scholten, J., Eriksson, M., Sanchez-Cabeza, J-A., Gastaud, J., Levy, I., Herrmann, J., Lindahl, P., Hong, G-H. & Nielsen, S. P., 2012, In : Limnology and Oceanography: Methods. 10, p. 590–607

Research output: Contribution to journalJournal articleResearchpeer-review

2011

A certified reference material for radionuclides in the water sample from Irish Sea (IAEA-443)

Pham, M. K., Betti, M., Povinec, P. P., Benmansour, M., Bünger, V., Drefvelin, J., Engeler, C., Flemal, J. M., Gascó, C., Guillevic, J., Gurriaran, R., Groening, M., Happel, J. D., Herrmann, J., Klemola, S., Kloster, M., Kanisch, G., Leonard, K., Long, S., Nielsen, S. P. & 11 others, Oh, J-S., Rieth, P. U., Östergren, I., Pettersson, H., Pinhao, N., Pujol, L., Sato, K., Schikowski, J., Varga, Z., Vartti, V. P. & Zheng, J., 2011, In : Journal of Radioanalytical and Nuclear Chemistry. 288, 2, p. 603-611

Research output: Contribution to journalJournal articleResearchpeer-review

Revision of deposition and weathering parameters for the ingestion dose module (ECOSYS) of the ARGOS and RODOS decision support systems

Andersson, K. G., Nielsen, S. P., Thørring, H., Hansen, H. S., Joensen, H. P., Isaksson, M., Kostiainen, E., Suolanen, V. & Pálsson, S. E., 2011, In : Journal of Environmental Radioactivity. 102, 11, p. 1024-1031

Research output: Contribution to journalJournal articleResearchpeer-review

Tracking of Airborne Radionuclides from the Damaged Fukushima Dai-Ichi Nuclear Reactors by European Networks

Masson, O., Baeza, A., Bieringer, J., Brudecki, K., Bucci, S., Cappai, M., Carvalho, F. P., Connan, O., Cosma, C., Dalheimer, A., Didier, D., Depuydt, G., De Geer, L. E., De Vismes, A., Gini, L., Groppi, F., Gudnason, K., Gurriaran, R., Hainz, D., Halldórsson, O. & 62 others, Hammond, D., Hanley, O., Holeý, K., Homoki, Z., Ioannidou, A., Isajenko, K., Jankovic, M., Katzlberger, C., Kettunen, M., Kierepko, R., Kontro, R., Kwakman, P. J. M., Lecomte, M., Leon Vintro, L., Leppänen, A-P., Lind, B., Lujaniene, G., Mc Ginnity, P., Mahon, C. M., Malá, H., Manenti, S., Manolopoulou, M., Mattila, A., Mauring, A., Mietelski, J. W., Møller, B., Nielsen, S. P., Nikolic, J., Overwater, R. M. W., Pálsson, S. E., Papastefanou, C., Penev, I., Pham, M. K., Povinec, P. P., Ramebäck, H., Reis, M. C., Ringer, W., Rodriguez, A., Rulík, P., Saey, P. R. J., Samsonov, V., Schlosser, C., Sgorbati, G., Silobritiene, B. V., Söderström, C., Sogni, R., Solier, L., Sonck, M., Steinhauser, G., Steinkopff, T., Steinmann, P., Stoulos, S., Sýkora, I., Todorovic, D., Tooloutalaie, N., Tositti, L., Tschiersch, J., Ugron, A., Vagena, E., Vargas, A., Wershofen, H. & Zhukova, O., 2011, In : Environmental Science & Technology (Washington). 45, 18, p. 7670-7677

Research output: Contribution to journalJournal articleResearchpeer-review

2010

An emergency response intercomparison exercise using a synthetically generated gamma-ray spectrum

Dowdall, M., Selnæs, O. G., Standring, W. J. F., Nielsen, S. P., del Risco Norrlid, L., Palsson, S. E., Renvall, T., Renvall, T. & Singh Sidhu, R., 2010, In : Journal of Radioanalytical and Nuclear Chemistry. 283, 1, p. 31-43

Research output: Contribution to journalJournal articleResearchpeer-review

Assessing deposition levels of 55Fe, 60Co and 63Ni in the Ignalina NPP environment

Gudelis, A., Druteikienė, R., Lukšienė, B., Gvozdaitė, R., Nielsen, S. P., Hou, X., Mažeika, J. & Petrošius, R., 2010, In : Journal of Environmental Radioactivity. 101, 6, p. 464-467

Research output: Contribution to journalJournal articleResearchpeer-review

Effect of Nordic ciets on ECOSYS model predictions of ingestion doses

Hansen, H. S., Nielsen, S. P., Andersson, K. G., Thørring, H., Joensen, H. P., Isaksson, M., Kostiainen, E., Suolanen, V., Sigurgeirsson, M. A. & Palsson, S. E., 2010, In : Radiation Protection Dosimetry. 140, 2, p. 182-190

Research output: Contribution to journalJournal articleResearchpeer-review

2009

Requirements for estimation of doses from contaminants dispersed by a 'dirty bomb' explosion in an urban area

Andersson, K. G., Mikkelsen, T., Astrup, P., Thykier-Nielsen, S., Jacobsen, L. H., Hoe, S. C. & Nielsen, S. P., 2009, In : Journal of Environmental Radioactivity. 100, 12, p. 1005-1011

Research output: Contribution to journalJournal articleResearchpeer-review

Root uptake of lead by Norway spruce grown on Pb-210 spiked soils

Hovmand, M. F., Nielsen, S. P. & Johnsen, I., 2009, In : Environmental Pollution. 157, 2, p. 404-409

Research output: Contribution to journalJournal articleResearchpeer-review

Time Series of I-129 and I-127 Speciation in Precipitation from Denmark

Hou, X., Aldahan, A., Nielsen, S. P. & Possnert, G., 2009, In : Environmental Science & Technology (Washington). 43, 17, p. 6522-6528

Research output: Contribution to journalJournal articleResearchpeer-review

2 Downloads (Pure)
2008

Estimation of health hazards resulting from a radiological terrorist attack in a city

Andersson, K. G., Mikkelsen, T., Astrup, P., Thykier-Nielsen, S., Jacobsen, L. H., Schou-Jensen, L., Hoe, S. C. & Nielsen, S. P., 2008, In : Radiation Protection Dosimetry. 131, 3, p. 297-307

Research output: Contribution to journalJournal articleResearchpeer-review

New developments to support decision-making in contaminated inhabited areas following incidents involving a release of radioactivity to the environment

Andersson, K. G., Brown, J., Mortimer, K., Jones, J. A., Charnock, T., Thykier-Nielsen, S., Kaiser, J. C., Proehl, G. & Nielsen, S. P., 2008, In : Journal of Environmental Radioactivity. 99, p. 439-454

Research output: Contribution to journalJournal articleResearchpeer-review

2007

Determination of 36Cl in nuclear waste from reactor decommissioning

Hou, X., Frøsig, L. & Nielsen, S. P., 2007, In : Analytical Chemistry. 79, 8, p. 3126-3134

Research output: Contribution to journalJournal articleResearchpeer-review

Speciation of 129I and 12I in seawater and implications for sources and transport pathways in the North Sea

Hou, X., Aldahan, A., Nielsen, S. P., Possnert, G., Nies, H. & Hedfors, J., 2007, In : Environmental Science & Technology (Washington). 41, p. 5993-5999

Research output: Contribution to journalJournal articleResearchpeer-review

Use of 99mTc from a commercial 99Mo/9mTc generator as yield tracer for the determination of 99Tc at low levels

Hou, X., Jensen, M. & Nielsen, S. P., 2007, In : Applied Radiation and Isotopes. 65, 5, p. 610-618

Research output: Contribution to journalJournal articleResearchpeer-review

2006

Determination of radiostrontium in environmental samples using sodium hydroxide for separation of strontium from calcium

Popov, L., Hou, X., Nielsen, S. P., Yu, Y., Djingova, R. & Kuleff, I., 2006, In : Journal of Radioanalytical and Nuclear Chemistry. 269, p. 161-173

Research output: Contribution to journalJournal articleResearchpeer-review

Orbituary - Dr. Henning Dahlgaard 1950-2005

Nielsen, S. P., 2006, In : Journal of Environmental Radioactivity. 88, p. 107-108

Research output: Contribution to journalJournal articleCommunication

2005

Determination of 63Ni and 55Fe in nuclear waste samples using radiochemical separation and liquid scintillation counting

Hou, X., Frøsig Østergaard, L. & Nielsen, S. P., 2005, In : Analytica Chimica Acta. 535, 1-2, p. 297-307

Research output: Contribution to journalJournal articleResearchpeer-review

2004

Levels and trends of radioactive contaminants in the Greenland environment

Dahlgaard, H., Eriksson, M., Nielsen, S. P. & Joensen, H. P., 2004, In : Science of the Total Environment. 331, 1-3, p. 53-67

Research output: Contribution to journalJournal articleResearchpeer-review

Results of the European Commission Marina II study part 1. General information and effects of discharges by the nuclear industry

Betti, M., Aldave de las Heras, L., Janssens, A., Henrich, E., Hunter, G., Gerchikov, M., Dutton, M., Weers, A. W. V., Nielsen, S. P., Simmonds, J., Bexon, A. & Sazykina, T., 2004, In : Journal of Environmental Radioactivity. 74, p. 243-254

Research output: Contribution to journalJournal articleResearchpeer-review

2003

Iodine-129 and Caesium-137 in Chernobyl contaminated soil and their chemical fractionation

Hou, X., Fogh, C. L., Kucera, J., Andersson, K. G., Dahlgaard, H. & Nielsen, S. P., 2003, In : Science of the Total Environment. 308, 1-3, p. 97-109

Research output: Contribution to journalJournal articleResearchpeer-review

Iodine-129 in thyroid and urine in Ukraine and Denmark

Hou, X., Malencheko, A. F., Kucera, J., Dahlgaard, H. & Nielsen, S. P., 2003, In : Sci. Total Environ.. 302, p. 63-73

Research output: Contribution to journalJournal articleResearchpeer-review

2002

242Pu as tracer for simultaneous determination of 237Np and 239,240Pu in environmental samples

Chen, Q. J., Dahlgaard, H., Nielsen, S. P. & Aarkrog, A., 2002, In : Journal of Radioanalytical and Nuclear Chemistry. 253, 3, p. 451-458

Research output: Contribution to journalJournal articleResearchpeer-review

Certified reference material for radionuclides in seawater IAEA-381 (Irish sea water)

Povinec, P. P., Badie, C., Baeza, A., Barci-Funel, G., Bergan, T. D., Bojanowski, R., Burnett, W., Eikenberg, J., Fifield, L. K., Serradell, V., Gastaud, J., Goroncy, I., Herrmann, J., Hotchkis, M. A. C., Ikaheimonen, T. K., Jakobson, E., Kalimbadjan, J., Rosa, J. J. L., Lee, S. H., Kwong, L. W. & 9 others, Lueng, W. M., Nielsen, S. P., Noureddine, A., Pham, M. K., Rohou, J-N., Sanchez-Cabeza, J. A., Suomela, J., Suplinska, M. & Wyse, E., 2002, In : Journal of Radioanalytical and Nuclear Chemistry. 251, p. 369-374

Research output: Contribution to journalJournal articleResearchpeer-review

Level and origin of iodine-129 in the Baltic Sea

Hou, X., Dahlgaard, H., Nielsen, S. P. & Kucera, J., 2002, In : Journal of Environmental Radioactivity. 61, p. 331-343

Research output: Contribution to journalJournal articleResearchpeer-review

Separation of Sr from Ca, Ba and Ra by means of Ca(OH)2 and Ba(Ra)Cl2 or Ba(Ra)SO4 for the determination of radiostrontium

Chen, Q. J., Hou, X., Yu, Y. X., Dahlgaard, H. & Nielsen, S. P., 2002, In : Analytica Chimica Acta. 466, 1, p. 109-116

Research output: Contribution to journalJournal articleResearchpeer-review

2001

A rapid method for the separation of 210Po from 210Pb by TIOA extraction

Chen, Q. J., Hou, X., Dahlgaard, H., Nielsen, S. P. & Aarkrog, A., 2001, In : Journal of Radioanalytical and Nuclear Chemistry. 249, p. 587-593

Research output: Contribution to journalJournal articleResearchpeer-review

Chemical speciation analysis of I-129 in seawater and a preliminary investigation to use it as a tracer for geochemical cycle study of stable iodine

Hou, X., Dahlgaard, H. & Nielsen, S. P., 2001, In : Marine Chemistry. 74, p. 145-155

Research output: Contribution to journalJournal articleResearchpeer-review

Determination of 237Np in marine sediment and seawater

Chen, Q. J., Dahlgaard, H., Nielsen, S. P., Aarkrog, A., Christensen, I. & Jensen, A., 2001, In : Journal of Radioanalytical and Nuclear Chemistry. 249, p. 527-533

Research output: Contribution to journalJournal articleResearchpeer-review

2000

Chernobyl fallout in a Swedish spruce forest ecosystem

McGee, E. J., Synnott, H. J., Johanson, K. J., Fawaris, B. H., Nielsen, S. P., Horrill, A. D., Kennedy, V. H., Barbayiannis, N., Veresoglou, D. S., Dawson, D. E., Colgan, P. A. & McGarry, A. T., 2000, In : Journal of Environmental Radioactivity. 48, p. 59-78

Research output: Contribution to journalJournal articleResearchpeer-review

Environmental modelling of radioactive contamination of floodplains and sorlakes along the Techa and Iset rivers

Aarkrog, A., Trapeznikov, A. V., Molchanova, I. V., Yushkov, P. I., Pozolotina, V. N., Polikarpov, G. G., Dahlgaard, H. & Nielsen, S. P., 2000, In : Journal of Environmental Radioactivity. 49, p. 243-257

Research output: Contribution to journalJournal articleResearchpeer-review

Environmental radioactive contamination in Greenland: A 35 years retrospect

Aarkrog, A., Dahlgaard, H. & Nielsen, S. P., 2000, In : Science of the Total Environment. 245, 1-3, p. 233-248

Research output: Contribution to journalJournal articleResearch

Iodine-129 in human thyroids and seaweed in China

Hou, X., Dahlgaard, H., Nielsen, S. P. & Ding, W. J., 2000, In : Science of the Total Environment. 246, 2-3, p. 285-291

Research output: Contribution to journalJournal articleResearch

Iodine-129 time series in Danish, Norwegian and northwest Greenland coast and the Baltic Sea by seaweed

Hou, X., Dahlgaard, H. & Nielsen, S. P., 2000, In : Estuarine, Coastal and Shelf Science. 51, p. 571-584

Research output: Contribution to journalJournal articleResearchpeer-review

Mercury in dated Greenland marine sediments

Asmund, G. & Nielsen, S. P., 2000, In : Science of the Total Environment. 245, 1-3, p. 61-72

Research output: Contribution to journalJournal articleResearch

Pre-separation neutron activation analysis of seawater, urine and milk for iodide and iodate

Hou, X., Dahlgaard, H., Rietz, B., Jacobsen, U. & Nielsen, S. P., 2000, In : Journal of Radioanalytical and Nuclear Chemistry. 244, p. 87-91

Research output: Contribution to journalJournal articleResearchpeer-review