Evaluation of 210Po an d210Pb in some mineral spring waters in Brazil
Nieri NETO, A; Mazzilli, B
| HERO ID | 1434073 |
|---|---|
| In Press | No |
| Year | 1998 |
| Title | Evaluation of 210Po an d210Pb in some mineral spring waters in Brazil |
| Authors | Nieri NETO, A; Mazzilli, B |
| Journal | Journal of Environmental Radioactivity |
| Volume | 41 |
| Issue | 1 |
| Page Numbers | 11-18 |
| Abstract | BIOSIS COPYRIGHT: BIOL ABS. Analysis of most natural waters shows that 210Po, the last radioactive member of the uranium natural decay-series, is present at very low activities, usually lower than its insoluble precursor, 210Po. Recent papers, however, show that 210Po can exist at very high concentrations in groundwaters of some shallow aquifers. Concentrations of 210Po and 210Pb have been analyzed in the mineral spring waters of a high background region of Brazil: Aguas da Prata. The water samples were collected over a period of one year in springs used by the local population and tourists to the region. Concentrations ranging from 3.5 mBq l-1 to 7.80mBq l-1 to 3.98, respectively. Doses were estimated in order to evaluate the relative importance of the ingestion of such radionuclides. Based upon measured concentrations, effective doses up to 1.81 mSv y-1 were observed for 210Pb and 210Po. Doses up to 5.9 mSv y-1 for the ingestion of 210Pb and up to 1-9 mSv y-1 for the ingestion of 210Po wer |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | eng |
| Keyword | <?xml version="1.0" encoding="UTF-8"?><kw>Radiation-Radiation Effects and Protective Measures</kw>; <?xml version="1.0" encoding="UTF-8"?><kw>Biochemical Studies-Minerals</kw>; <?xml version="1.0" encoding="UTF-8"?><kw>Toxicology-Environmental and Industrial Toxicology</kw>; <?xml version="1.0" encoding="UTF-8"?><kw>Public Health: Environmental Health-Air</kw>; <?xml version="1.0" encoding="UTF-8"?><kw>Public Health: Environmental Health-Radiation Health</kw> |