The first 60Co-contaminated rebar building was found in Taipei City in 1992. In order to provide effective remedial suggestions to the building owner and residents of contaminated housing units, and to evaluate the dose equivalent to the residents, the Atomic Energy Council (AEC) organized a survey team on October 17, 1992. The main object of this team was to perform a detailed survey and dose equivalent evaluation of the 60Co-contaminated buildings. By the end of 2000, 181 buildings with 1607 housing units were identified as being contaminated with radioactive rebars at different levels. This article presents the detailed radiation survey and dose equivalent evaluation procedures employed by the survey team.
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