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Concentrations of radionuclides in cassava growing in high background radiation area and their transfer

Journal Article:

Abstract

The concentrations of several natural radionuclides in common cassava (Manihot esculenta Crantz) growing in Yangjiang County, a high background radiation area in Guangdong Province, and their uptake from soil and distribution in the plant were investigated. The results show that the concentrations of natural uranium and thorium in cassava root are of the order of 10/sup -6/ g/kg, and those of radium-226, radium-228, lead-210 and polonium-210 are of the order of 10/sup -11/ Ci/kg. The highest level is 9.30 +- 0.30 x 10/sup -11/ Ci/kg (lead-210), and the lowest is 3.99 +- 0.20 x 10/sup -11/ Ci/kg (radium-226). The levels of natural uranium, thorium, radium-226 and polonium-210 in cassava are below the limits stipulated by the regulations for food hygiene in China, while the lead-210 level approaches the limit. It is noticeable that the highest level of radium-228 is 7.28 +- 1.03 x 10/sup -11/ Ci/kg, 10.4 times higher than the limit. The transfer of all the nuclides from soil to different parts of cassava shows a pattern contrary to that of he nuclides in the other regions where uranium-and radium-containing waste water and phosphate fertilizer are used in agriculture.
Publication Date:
Apr 01, 1985
Product Type:
Journal Article
Reference Number:
EDB-86-160894
Resource Relation:
Journal Name: Zhonghua Fangshe Yixue Yu Fanghu Zazhi; (China); Journal Volume: 5:2
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CASSAVA; RADIOECOLOGICAL CONCENTRATION; LEAD 210; UPTAKE; POLONIUM 210; RADIUM 226; RADIUM 228; BACKGROUND RADIATION; CHINA; EXPERIMENTAL DATA; NATURAL RADIOACTIVITY; RADIOISOTOPES; RADIONUCLIDE MIGRATION; TRANSLOCATION; ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; ASIA; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DATA; DAYS LIVING RADIOISOTOPES; ECOLOGICAL CONCENTRATION; ENVIRONMENTAL TRANSPORT; EVEN-EVEN NUCLEI; HEAVY NUCLEI; INFORMATION; ISOTOPES; LEAD ISOTOPES; MASS TRANSFER; NUCLEI; NUMERICAL DATA; PLANTS; POLONIUM ISOTOPES; RADIATIONS; RADIOACTIVITY; RADIUM ISOTOPES; YEARS LIVING RADIOISOTOPES; 560173* - Radiation Effects- Nuclide Kinetics & Toxicology- Plants- (-1987)
OSTI ID:
5415200
Research Organizations:
Guangdong Occupational Diseases Prevention and Treatment Centre, Guangzhou, China
Country of Origin:
China
Language:
Chinese
Other Identifying Numbers:
Journal ID: CODEN: ZFYZD
Submitting Site:
INIS
Size:
Pages: 106-109
Announcement Date:

Journal Article:

Citation Formats

Jialin, Huang, Yongru, Zha, and Yicao, Guo. Concentrations of radionuclides in cassava growing in high background radiation area and their transfer. China: N. p., 1985. Web.
Jialin, Huang, Yongru, Zha, & Yicao, Guo. Concentrations of radionuclides in cassava growing in high background radiation area and their transfer. China.
Jialin, Huang, Yongru, Zha, and Yicao, Guo. 1985. "Concentrations of radionuclides in cassava growing in high background radiation area and their transfer." China.
@misc{etde_5415200,
title = {Concentrations of radionuclides in cassava growing in high background radiation area and their transfer}
author = {Jialin, Huang, Yongru, Zha, and Yicao, Guo}
abstractNote = {The concentrations of several natural radionuclides in common cassava (Manihot esculenta Crantz) growing in Yangjiang County, a high background radiation area in Guangdong Province, and their uptake from soil and distribution in the plant were investigated. The results show that the concentrations of natural uranium and thorium in cassava root are of the order of 10/sup -6/ g/kg, and those of radium-226, radium-228, lead-210 and polonium-210 are of the order of 10/sup -11/ Ci/kg. The highest level is 9.30 +- 0.30 x 10/sup -11/ Ci/kg (lead-210), and the lowest is 3.99 +- 0.20 x 10/sup -11/ Ci/kg (radium-226). The levels of natural uranium, thorium, radium-226 and polonium-210 in cassava are below the limits stipulated by the regulations for food hygiene in China, while the lead-210 level approaches the limit. It is noticeable that the highest level of radium-228 is 7.28 +- 1.03 x 10/sup -11/ Ci/kg, 10.4 times higher than the limit. The transfer of all the nuclides from soil to different parts of cassava shows a pattern contrary to that of he nuclides in the other regions where uranium-and radium-containing waste water and phosphate fertilizer are used in agriculture.}
journal = {Zhonghua Fangshe Yixue Yu Fanghu Zazhi; (China)}
volume = {5:2}
journal type = {AC}
place = {China}
year = {1985}
month = {Apr}
}