巴西Petrolina-PE地区 o Francisco河沉积物和水中的228 Ra, 226 Ra和210 Pb

Q4 Medicine International Journal of Low Radiation Pub Date : 2013-08-01 DOI:10.1504/IJLR.2013.055608

C. Silva, J. N. Tabosa, C. C. Júnior, C. A. Filho, J. A. S. Neto

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引用次数: 0

摘要

本研究的目的是测定圣弗朗西斯科河的水和沉积物中228Ra, 226Ra和210Pb的浓度，该河流靠近佩特利纳市生产水果的农场。水样中228Ra、210Pb和226Ra的浓度变化范围为< 19.0(检测限)~ 22.0 mBq.l-1;< 4.0(检测限)至13.0 mBq.l-1;12.0至42.0 mBq。l - 1。对于沉积物样品，按此顺序，浓度范围从< 7.0(检测限)到35.0 Bq.kg-1;< 3.5(检出限)至15.0 Bq.kg-1;12.0至92 Bq.kg-1。这些结果表明，在Petrolina的Sao Francisco river，沉积物中存在高浓度228Ra、226Ra和210Pb的斑点。

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228 Ra, 226 Ra and 210 Pb in sediment and water of the São Francisco River in Petrolina-PE/Brazil

The purpose of this of this research is to determine 228Ra, 226Ra and 210Pb concentrations in the water and sediment of the Sao Francisco River, nearby from farms producing fruits in Petrolina City. Concentrations of 228Ra, 210Pb and 226Ra in the water samples varied from < 19.0 (detection limit) to 22.0 mBq.l–1; < 4.0 (detection limit) to 13.0 mBq.l–1; and 12.0 to 42.0 mBq.l–1, respectively. For sediments samples, in this order, the concentrations ranged from < 7.0 (detection limit) to 35.0 Bq.kg–1; < 3.5 (detection limit) to 15.0 Bq.kg–1; and 12.0 to 92 Bq.kg–1. These results indicate that there are spots in Sao Francisco Rive, Petrolina, which have high concentrations of 228Ra, 226Ra and 210Pb in sediments.

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International Journal of Low Radiation Environmental Science-Health, Toxicology and Mutagenesis

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期刊介绍： The IJLR is a peer-reviewed journal dedicated to the publication of research articles, review papers and technical notes in all domains related to low-dose radiation, among which are the biological and health effects in humans and the biota, in vitro and in vivo research on low radiation effects, regulatory and policy aspects, risk estimation and public perception.