Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Physical Sciences: Krypton-85 in the Troposphere


KRYPTON-85 produced by fission in nuclear reactors is at present the most abundant man-made radioisotope in the troposphere. Its activity in air was 33 d.p.m. m−3 air by the end of 1969 and it continues to increase. In this communication we report recent measurements of the 85Kr activity in samples from air liquefaction plants at Oberhausen and Duisburg in West Germany.

This is a preview of subscription content, access via your institution

Relevant articles

Open Access articles citing this article.

Access options

Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. Ehhalt, D. H., Münnich, K. O., Roether, W., Schölch, J., and Stich, W., J. Geophys. Res., 68, 3817 (1963).

    Article  ADS  CAS  Google Scholar 

  2. Ehhalt, D. H., Münnich, K. O., Roether, W., Schölch, J., and Stich, W., Third United Nations International Conference on the Peaceful Uses of Atomic Energy (A/CONF, 28/P/541, May 1964).

    Google Scholar 

  3. Shuping, R. E., Phillips, C. R., and Moghissi, A. A., Anal. Chem., 41, 2082 (1969).

    Article  CAS  Google Scholar 

  4. Shuping, R. E., Phillips, C. R., and Moghissi, A. A., Radiolog. Health Data and Repts, 11, 671 (1970).

    CAS  Google Scholar 

  5. Pannetier, R., Rapport CEA-R-3591 (Saclay, 1968).

    Google Scholar 

  6. Katcoff, S., Nucleonics, Data Sheet No. 24, 16, 78 (1958).

    CAS  Google Scholar 

  7. Griesser, O., and Sittkus, A., Z. Naturforsch., 16, 620 (1961).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations


Rights and permissions

Reprints and Permissions

About this article

Cite this article

SCHRÖDER, J., MÜNNICH, K. & EHHALT, D. Physical Sciences: Krypton-85 in the Troposphere. Nature 233, 614–615 (1971).

Download citation

  • Received:

  • Issue Date:

  • DOI:

This article is cited by


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing