Published September 2022 | Version v1
Journal article Metadata-only

Distribution of gamma radiation dose rate and activity concentration in soil related with natural radionuclides on Taiwan main island

Creators

  • 1. Department of Radiological Technology, Faculty of Health Sciences, Nihon Institute of Medical Science, 1276 Shimogawara, Moroyama, Iruma-gun, Saitama 350-0435 (Japan)
  • 2. Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo 116-8551 (Japan)
  • 3. Division of Diagnostic Radiology, Shizuoka Cancer Center, 1007 Shimonagakubo, Nagaizumi, Sunto, Shizuoka 411-8777 (Japan)
  • 4. Department of Radiological Sciences, Tsukuba International University, 6-20-1 Manabe, Tsuchiura-shi, Ibaraki 300-0051 (Japan)

Description

To enable precise assessment of health impacts following a nuclear power plant accident, extensive and detailed data on environmental radiation levels are needed. This study was undertaken to investigate the air and the soil radiation levels using a car-borne survey on the main island of Taiwan where no extensive environmental radiation distribution survey had been conducted before. The mean air absorbed dose rate on this island was 57 ± 10 nGy h-1. The measured dose rate distribution varied depending on the geology of the soils, and ranged from 22 to 113 nGy h-1. The mean radiation level in soil was 539 ± 124 Bq kg-1 for 40K, 23 ± 8 Bq kg-1 for 238U and 41 ± 22 Bq kg-1 for 232Th. The air absorbed dose rate (58 nGy h-1) calculated from these data of mean radiation level in soil was comparable to that determined by the car-borne survey method. Thus, this study yielded detailed data on air absorbed dose rate depending primarily on the geology of the soils on the main island of Taiwan. (authors)

Availability note (English)

Available from doi: http://dx.doi.org/10.1093/rpd/ncac031

Additional details

Identifiers

DOI
10.1093/rpd/ncac031;

Publishing Information

Journal Title
Radiation Protection Dosimetry
Journal Volume
198
Journal Issue
13-15
Journal Page Range
p. 998-1003
ISSN
0144-8420

Conference

Title
30. international symposium of the Institute for Environmental Sciences 'Environmental Dynamics of Radionuclides and the Biological Effects of Low Dose-Rate Radiation'
Dates
27-29 Sep 2021
Place
Aomori City (Japan)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
France
INIS RN
53113370
Subject category
S61: RADIATION PROTECTION AND DOSIMETRY; S54: ENVIRONMENTAL SCIENCES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ABSORBED RADIATION DOSES; CONCENTRATION RATIO; DOSE RATES; GAMMA RADIATION; NUCLEAR POWER PLANTS; POTASSIUM 40; RADIATION ACCIDENTS; RADIOECOLOGICAL CONCENTRATION; TAIWAN; THORIUM 232; URANIUM 238
Descriptors DEC
ACCIDENTS; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; ASIA; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CHINA; DIMENSIONLESS NUMBERS; DOSES; ECOLOGICAL CONCENTRATION; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; EVEN-EVEN NUCLEI; HEAVY NUCLEI; IONIZING RADIATIONS; ISLANDS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; NANOSECONDS LIVING RADIOISOTOPES; NUCLEAR FACILITIES; NUCLEI; ODD-ODD NUCLEI; POTASSIUM ISOTOPES; POWER PLANTS; RADIATION DOSES; RADIATIONS; RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTOPES; THERMAL POWER PLANTS; THORIUM ISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
19 refs.