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Keld Alstrup Jensen

Keld Alstrup Jensen

Current Research

Nanotechnology Projects

Air-pollution Projects

Research Interests

- Physico-chemical characterization of engineered nanoparticles and relationships with toxicological effects in lung-cells
- Exposure risk during production of nanparticles and handling nanoparticle powders
- The physico-chemical composition of urban air-pollution and their influence on indoor air quality
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Development of revised or new techniques for evaluation of exposure and hazard identification of particles

Selected Publications

Jensen, K.A., Koponen, I.K., Clausen, P.A. and Schneider, T., 2008, Dustiness behaviour of loose and compacted Bentonite and organoclay powders: What is the difference in exposure risk? Journal of Nanoparticle Research. http://dx.doi.org/10.1007/s11051-008-9420-1

Hougaard, K.S., Jensen, K.A., Nordly, P., Taxvig, C., Vogel, U., Saber, A.T., Wallin, H., 2008, Effects of prenatal exposure to diesel exhaust particles on postnatal development, behavior, genotoxicity and inflammation in mice. Particle and Fibre Toxicology, 5:3, doi:10.1186/1743-8977-5-3.

Schneider T. and Jensen K.A., 2008, Combined single drop and rotating drum dustiness test of fine to nanosized powders using a small drum. Annals of Occupational Hygiene. 52/1, 23-34.

Sharma, A.K., Jensen, K.A., Rank, J., White, P.A., Lundstedt, S., Gagne, R., Jacobsen, N.R., Kristiansen, J., Vogel, U., and Wallin, H., 2007, Genotoxicity, inflammation and physico-chemical properties of fine particle samples from an incineration energy plant and urban air. Mutation Research, 633, 95-111.

Sharma, A.K., Wallin, H., Jensen, K.A., 2007, High-volume electrostatic field-sampler for collection of fine particle bulk samples. Atmospheric Environment, 41, 369-381.

Meyer, H.W., Jensen, K.A., Nielsen, K.F., Kildesø, J., Norn, S., Permin, H., Poulsen, L.K., Malling, H.J., Gravesen, S., and Gyntelberg, F., 2005, Double blind placebo controlled exposure to moulds: Exposure system and clinical results. Indoor Air, 15/Suppl 10, 73-80.

Schneider, T., Jensen, K.A., Clausen, P.A., Afshari, A., Gunnarsen, L., Wåhlin, P., Palmgren, F., Nielsen, O.J., and Fogh, C.L., 2004, Prediction of indoor concentration of 0.5-4 mm particles of outdoor origin in an uninhabited apartment. Atmospheric Environment, 38, 6349-6359.

Utsunomiya, S., Jensen, K.A., Keeler, G.J., and Ewing, R.C., 2004, Direct identification of fine and ultra-fine trace metal particles in the Detroit urban atmosphere. Environmental Science and Technology, 38/8, 2289-2297.

Jensen, K.A., Palenik, C.S., and Ewing, R.C., 2002, U6+-phases in the weathering zone of the Bangombé U-deposit: Observed and predicted mineralogy. Radiochimica Acta, 90, 761-769.


Employments

2004 - Senior Research Scientist: NIOH-Denmark, DK-2100 Copenhagen Ø, DENMARK.
2000 - 2004 Researcher: NIOH-Denmark, DENMARK.
2002 Assistant Research Manager of the Department of Indoor Environment
1999& - 2000 Research Fellow: Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan, USA.
1999 Research Assistant: Department of Earth Sciences, University of Aarhus, DK-8000 Aarhus C, DENMARK.
1999 Research Investigator: Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA.
1995 - 1999 PhD-candidate/Teaching and Research Assistant: Department of Earth Sciences, University of Aarhus, DK-8000 Aarhus C, DENMARK
1997 Field Geologist: 1 month in Gabon for CNRS, The Oklo-Project Phase II: Centre National de la Recherche Scientifique (CNRS), FRANCE.
1997 Field Geologist: 2 months in Gabon for CEA, The Oklo-Project Phase II: Commissariat a l’Energie Atomique (CEA), FRANCE.

Education

1995 - 1999 Ph.d-Candidate in applied mineralogy, Department of Earth Sciences, University of Aarhus , DK-8600 DENMARK
Thesis The natural fission reactors in Gabon : mineralogy, uraninite chemistry, and retardation of nuclear reaction products
1988 - 1994 Geology student, Department of Earth Sciences, University of Aarhus , DK-8600 DENMARK
Thesis Dynamic crystallization experiments in felsic silicate melts at 5 kb & 1 atm: Texture and crystallization kinetics & mineral and melt chemistry
1983 - 1985 HF, Vestjysk Gymnasium Tarm (VGT)
 12.07.2010
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National Research Centre for the Working Environment | Lersø Parkallé 105 | DK-2100 Copenhagen O | Denmark |

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