| YU Rong-sheng,TU Yu.Evaluation on radioactive level and quality of aquatic environment in Suzhou[J].Chinese Journal of Radiological Medicine and Protection,2007,27(4):392-394 |
| Evaluation on radioactive level and quality of aquatic environment in Suzhou |
| Received:July 26, 2006 |
| DOI： |
| KeyWords:Water sources Total α Total β Quality assessment |
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| Abstract:: |
| Objective To assess the quality grade of water source in Suzhou in terms of the radioactive level. Methods The levels of total α and total β activities in samples of water were detected by relative measurement with medium thickness using model BH 1216 low level α and β detector. 241Am and pure potassium chloride were used as reference radioactive sources. Results Among all samples collected, the measured levels varied from (2.62±0.17)×10－2 to (8.48±2.80)×10－2 Bq/L for total α and (0.77±0.47)×10－1 to (3.75±0.26)×10－1 Bq/L for total β, the average levels of β/α were from 1.6 to 7.2.Conclusions The radioactivity level of water source in Suzhou was within the natural background range, free from contamination of artificial radioactive nuclides, which was regarded as good in quality in terms of radioactive level. It is shown that the radioactivity of well water was highest among all investigated water sources. |
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