skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Spatial distribution and risk assessment of radionuclides in soils around a coal-fired power plant: A case study from the city of Baoji, China

Abstract

Coal burning may enhance human exposure to the natural radionuclides that occur around coal-fired power plants (CFPP). In this study, the spatial distribution and hazard assessment of radionuclides found in soils around a CFPP were investigated using statistics, geostatistics, and geographic information system (GIS) techniques. The concentrations of Ra-226, Th-232, and K-40 in soils range from 12.54 to 40.18, 38.02 to 72.55, and 498.02 to 1126.98 Bq kg{sup -1}, respectively. Ordinary kriging was carried out to map the spatial patterns of radionuclides, and disjunctive kriging was used to quantify the probability of radium equivalent activity (Ra{sub eq}) higher than the threshold. The maps show that the spatial variability of the natural radionuclide concentrations in soils was apparent. The results of this study could provide valuable information for risk assessment of environmental pollution and decision support.

Authors:
; ;  [1]
  1. Shaanxi Normal University, Xian (China)
Publication Date:
OSTI Identifier:
20939576
Resource Type:
Journal Article
Journal Name:
Environmental Research
Additional Journal Information:
Journal Volume: 104; Journal Issue: 2; Journal ID: ISSN 0013-9351
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; FOSSIL-FUEL POWER PLANTS; COAL; SOILS; SPATIAL DISTRIBUTION; RISK ASSESSMENT; RADIOISOTOPES; CHINA; NATURAL RADIOACTIVITY; GEOGRAPHIC INFORMATION SYSTEMS; STATISTICS; RADIUM 226; THORIUM 232; POTASSIUM 40

Citation Formats

Dai, L.J., Wei, H.Y., and Wang, L.Q. Spatial distribution and risk assessment of radionuclides in soils around a coal-fired power plant: A case study from the city of Baoji, China. United States: N. p., 2007. Web. doi:10.1016/j.envres.2006.11.005.
Dai, L.J., Wei, H.Y., & Wang, L.Q. Spatial distribution and risk assessment of radionuclides in soils around a coal-fired power plant: A case study from the city of Baoji, China. United States. doi:10.1016/j.envres.2006.11.005.
Dai, L.J., Wei, H.Y., and Wang, L.Q. Fri . "Spatial distribution and risk assessment of radionuclides in soils around a coal-fired power plant: A case study from the city of Baoji, China". United States. doi:10.1016/j.envres.2006.11.005.
@article{osti_20939576,
title = {Spatial distribution and risk assessment of radionuclides in soils around a coal-fired power plant: A case study from the city of Baoji, China},
author = {Dai, L.J. and Wei, H.Y. and Wang, L.Q.},
abstractNote = {Coal burning may enhance human exposure to the natural radionuclides that occur around coal-fired power plants (CFPP). In this study, the spatial distribution and hazard assessment of radionuclides found in soils around a CFPP were investigated using statistics, geostatistics, and geographic information system (GIS) techniques. The concentrations of Ra-226, Th-232, and K-40 in soils range from 12.54 to 40.18, 38.02 to 72.55, and 498.02 to 1126.98 Bq kg{sup -1}, respectively. Ordinary kriging was carried out to map the spatial patterns of radionuclides, and disjunctive kriging was used to quantify the probability of radium equivalent activity (Ra{sub eq}) higher than the threshold. The maps show that the spatial variability of the natural radionuclide concentrations in soils was apparent. The results of this study could provide valuable information for risk assessment of environmental pollution and decision support.},
doi = {10.1016/j.envres.2006.11.005},
journal = {Environmental Research},
issn = {0013-9351},
number = 2,
volume = 104,
place = {United States},
year = {2007},
month = {6}
}