Published January 2008 | Version v1
Journal article Metadata-only

Activity concentrations of naturally occurring radionuclides and 239+240Pu in the surface sediments off Kalpakkam coast

Creators

  • 1. Environmental Survey Lab., Health Physics Div., Bhabha Atomic Research Centre, Kalpakkam (India)
  • 2. Anna Univ., Chennai (India)

Description

Surface Sediment samples collected up to 5 Km distance off 3 sampling stations located along the Kalpakkam coast line were analysed for 238U, 232Th, 40K and 239+240Pu. The sediments composition study was also done. 239+240Pu levels were in the range 0.02 Bq/kg dry to 0.2 Bq/kg dry which were very low compared to global fallout levels. The 238U, 232Th and 40K concentrations were in the range, 4-32 and 6-222, 208-595 Bq/kg dry respectively in the sediments. From the study, elevated concentration of 232Th was observed due to the presence of monazite which contains 9.6% Thorium. The contribution of 239+240Pu discharges from the nuclear facilities of Kalpakkam to the dose to benthic organisms is negligible compared to 238U and 232Th in the surface sediments of Kalpakkam. (author)

Additional details

Publishing Information

Journal Title
Radiation Protection and Environment
Journal Volume
31
Journal Issue
1-4
Journal Page Range
p. 349-351
CODEN
RPREFM

Conference

Title
28. IARP national conference on management of nuclear and radiological emergencies
Acronym
IARPNC-2008
Dates
19-21 Nov 2008
Place
Jodhpur (India)

INIS

Country of Publication
India
Country of Input or Organization
India
INIS RN
40077977
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
FUEL REPROCESSING PLANTS; KALPAKKAM LMFBR REACTOR; MONAZITES; PLUTONIUM 239; PLUTONIUM 240; POTASSIUM 40; RADIATION MONITORING; SEDIMENTS; THORIUM 232; URANIUM 238
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BREEDER REACTORS; ELECTRON CAPTURE RADIOISOTOPES; EPITHERMAL REACTORS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FAST REACTORS; FBR TYPE REACTORS; HEAVY NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; LIQUID METAL COOLED REACTORS; LMFBR TYPE REACTORS; MATERIALS; MINERALS; MONITORING; NANOSECONDS LIVING RADIOISOTOPES; NUCLEAR FACILITIES; NUCLEI; ODD-ODD NUCLEI; PHOSPHATE MINERALS; PLUTONIUM ISOTOPES; POTASSIUM ISOTOPES; RADIOACTIVE MATERIALS; RADIOACTIVE MINERALS; RADIOISOTOPES; REACTORS; RESEARCH AND TEST REACTORS; SPONTANEOUS FISSION RADIOISOTOPES; TEST FACILITIES; TEST REACTORS; THORIUM ISOTOPES; THORIUM MINERALS; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
10 refs., 2 figs., 3 tabs.