Published April 2016 | Version v1
Journal article Metadata-only

Assessment of radionuclide level in soil samples for partial areas of Hainan, China

Creators

  • 1. National Institute for Radiological Protection, China CDC, Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, Beijing (China)

Description

Objective: To evaluate the level of radioactivity in soil samples in some area of Hainan. Methods: During 2012, topsoil samples were collected from China's Hainan Province, in order to evaluate their radioactivity. The radioactivities of 15 soil samples have been measured with a low-background high-purity germanium gamma spectroscopy. Results: In the samples, the average activity concentrations of 226Ra, 232Th and 40K were (26.3 ± 1.0), (23.7 ± 0.9) and (366.1 ± 13.4) Bq·kg-1, respectively. And the activity concentration of 137Cs was found to vary from < 0.35 (minimum detectable activity concentration) to 2.25 Bq·kg-l. By using the results of 226Ra, 232Th and 40K in the sampled soils, the average outdoor gamma dose rate in air was calculated as (41.7 ± 1.5) nGy·h-1. Furthermore, the average outdoor annual effective dose from terrestrial radiation was 0.05 mSv. Conclusion: The results of soil sample analysis show that the measurement results of all the points are normal. (authors)

Additional details

Publishing Information

Journal Title
Chinese Journal of Radiological Health
Journal Volume
25
Journal Issue
2
Journal Page Range
p. 136-139
ISSN
1004-714X

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
50069714
Subject category
S54: ENVIRONMENTAL SCIENCES;
Descriptors DEI
AIR; CESIUM 137; CHINA; CONCENTRATION RATIO; DOSE RATES; EFFECTIVE RADIATION DOSES; GAMMA SPECTROSCOPY; OUTDOORS; POTASSIUM 40; RADIOACTIVITY; RADIUM 226; SOILS; THORIUM 232
Descriptors DEC
ACTINIDE NUCLEI; ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; ASIA; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CARBON 14 DECAY RADIOISOTOPES; CESIUM ISOTOPES; DIMENSIONLESS NUMBERS; DOSES; ELECTRON CAPTURE RADIOISOTOPES; EVEN-EVEN NUCLEI; FLUIDS; GASES; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; NANOSECONDS LIVING RADIOISOTOPES; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; POTASSIUM ISOTOPES; RADIATION DOSES; RADIOISOTOPES; RADIUM ISOTOPES; SPECTROSCOPY; SPONTANEOUS FISSION RADIOISOTOPES; THORIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
2 figs., 2 tabs., 14 refs.