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North Korean nuclear test of October 9th, 2006: The utilization of health Canada’s radionuclide monitoring network and environment Canada’s atmospheric transport and dispersion modelling

Published online by Cambridge University Press:  09 January 2012

J. Barescut ,
D. Lariviere ,
T. Stocki ,
T.J. Stocki ,
R.K. Ungar ,
R. D’Amours ,
M. Bean ,
K. Bock ,
I. Hoffman  and
E. Korpach
...Show all authors
T.J. Stocki
Affiliation:
Radiation Protection Bureau, Health Canada, 2720 Riverside Dr., AL6604C, Ottawa, ON, Canada, K1A 1C1
R.K. Ungar
Affiliation:
Radiation Protection Bureau, Health Canada, 2720 Riverside Dr., AL6604C, Ottawa, ON, Canada, K1A 1C1
R. D’Amours
Affiliation:
Canadian Meteorological Centre, Environment Canada, 2121 Trans-Canada Highway, Dorval, QC, Canada H9P 1J3
M. Bean
Affiliation:
Radiation Protection Bureau, Health Canada, 2720 Riverside Dr., AL6604C, Ottawa, ON, Canada, K1A 1C1
K. Bock
Affiliation:
Radiation Protection Bureau, Health Canada, 2720 Riverside Dr., AL6604C, Ottawa, ON, Canada, K1A 1C1
I. Hoffman
Affiliation:
Radiation Protection Bureau, Health Canada, 2720 Riverside Dr., AL6604C, Ottawa, ON, Canada, K1A 1C1
E. Korpach
Affiliation:
Radiation Protection Bureau, Health Canada, 2720 Riverside Dr., AL6604C, Ottawa, ON, Canada, K1A 1C1
A. Malo
Affiliation:
Canadian Meteorological Centre, Environment Canada, 2121 Trans-Canada Highway, Dorval, QC, Canada H9P 1J3
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Abstract

Since January 1959, Health Canada has monitored environmental levels of radioactive fallout, to ensure the health and well being of Canadians. This work has evolved to include explosion verification for the Comprehensive nuclear-Test-Ban Treaty by monitoring the concentration of radioxenon in the atmosphere. Detection of Xe at Yellowknife by the monitoring system of Health Canada combined with the atmospheric transport and dispersion models (ATDM) of Environment Canada and seismic timing data have shown that the source of this Xe was most likely from the North Korean nuclear test of October 9th, 2006. Historical and real time monitoring data on the distribution of Xe releases from Chalk River Labs, the major source of anthropogenic background to Yellowknife were studied. Careful review of other large Xe-133 measurements at Yellowknife with ATDM was used to understand the October 2006 measurements of Xe. This allowed us to conclude that the Xe-133 detected at Yellowknife could be attributed to a release from the October nuclear test in North Korea. Health Canada and Environment Canada have demonstrated that Xe detection combined with ATDM is a viable technology for treaty verification.

Type
Research Article
Information
Radioprotection , Volume 46 , Issue 6: ICRER 2011 – International Conference on Radioecology & Environmental Radioactivity: Environment & Nuclear Renaissance , 2011 , pp. S529 - S534
Copyright
© Owned by the authors, published by EDP Sciences, 2011

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References

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