 | The following summarizes the monitoring results on Lan-Yu, a tropical islet to the southeast of Taiwan. Lan-Yu has been serving as a temporary nuclear waste storage site since 1982. Analysis numbers of sample are 146. |
| Direct radiation: |
| With thermoluminescent dosimeter (TLD), the gamma dose rates around Lan-Yu storage site were found between 0.025 and 0.039 £gSv/hr, which are within the variation of background environmental radiation. |
| With gamma radiation monitoring network, the gamma dose rates around INER were found between 0.041 and 0.055 £gSv/hr. All the data are within the variation of environmental background radiation. |
| Grass and Plants: |
| With gamma spectrometry, no man-made radionuclides were found. |
| Water (including drink water and sea water): |
| With gamma spectrometry, no man-made radionuclides were found. In tritium analysis, the tritium activity was below MDA. |
| Agriculture products: |
| With gamma spectrometry, no man-made radionuclides were found in taro. |
| Marine products¡G |
| With gamma spectrometry, no man-made radionuclides were found in sea fishes and sea- weeds. |
| Cumulative effect samples (including soil, sands on beaches): |
| With gamma spectrometry, Cs-137 was found between MDA and 5.0 Bq/Kg • dry in soil and sands on beaches. |
| Based on the monitoring results on the Lan-Yu, the maximal personal dose is assessed and found to be lower than the dose limit. |
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