Radionuclide mapping of the Molise region (Central Italy) via gamma-ray spectrometry of soil samples: relationship with geological and pedological parameters

被引：9

作者：

Laubenstein, Matthias ^{[1
]}

Plastino, Wolfango ^{[2
,3
]}

Povinec, Pavel P. ^{[4
]}

Fabbri, Valeria ^{[2
]}

Aprili, Piergiorgio ^{[1
]}

Balata, Marco ^{[1
]}

Bella, Francesco ^{[2
]}

Cardarelli, Angela ^{[2
]}

De Deo, Massimiliano ^{[1
]}

Gallese, Benedetto ^{[1
]}

Ioannucci, Luca ^{[1
]}

Nisi, Stefano ^{[1
]}

Antonecchia, Diego ^{[5
]}

Del Pinto, Christian ^{[5
]}

Giarrusso, Giuseppe ^{[5
]}

机构：

[1] Natl Inst Nucl Phys, Gran Sasso Natl Lab, I-67100 Assergi, AQ, Italy

[2] Univ Roma Tre, Dept Phys, I-00146 Rome, Italy

[3] Natl Inst Nucl Phys, Sect Roma Tre, I-00146 Rome, Italy

[4] Comenius Univ, Dept Nucl Phys & Biophys, Bratislava 84248, Slovakia

[5] Ctr Funz, Natl Civil Protect Dept Molise, I-86020 Campochiaro, CB, Italy

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2013年 / 298卷 / 01期

关键词：

Gamma-ray spectrometry; Natural radioactivity; Soil; Radiation exposure; RADIOACTIVITY;

D O I：

10.1007/s10967-012-2353-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Radionuclide maps of the Molise region were created for the first time using gamma-ray spectrometry analysis of 205 soil samples. The geographical distributions of K-40, Th-232 and U-238 were within the world average values for soils. K-40 was distributed homogeneously with a slight enhancement along the coastline. The decay chains of U-238 and Th-232 were in secular equilibrium with their daughters, also showing a homogeneous distribution except for localized areas of enhanced concentrations close to the borders with the Lazio and the Campania regions. Concentrations of all three radionuclides were correlated with geological and pedological characteristics of soils. The measured external gamma-dose rate in the air due to naturally occurring radionuclides in the soil, and the dose rate due to cosmic rays were in agreement with values measured in other Mediterranean regions. Increased Cs-137 levels from atmospheric nuclear weapons tests and the Chernobyl fallout were found at sites above 1,000 m a.s.l.

引用

页码：317 / 323

页数：7

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