Long-term behaviour of 137Cs in spruce bark in coniferous forests in the Czech Republic
Language English Country England, Great Britain Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
24172658
DOI
10.1016/j.envpol.2013.10.012
PII: S0269-7491(13)00540-X
Knihovny.cz E-resources
- Keywords
- (137)Cs in spruce bark, Aggregated transfer factor, Effective half-life, Environmental half-life,
- MeSH
- Plant Bark chemistry MeSH
- Radiation Monitoring MeSH
- Half-Life MeSH
- Radioactive Fallout analysis statistics & numerical data MeSH
- Radioactive Pollutants analysis MeSH
- Cesium Radioisotopes analysis MeSH
- Picea chemistry MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Geographicals
- Czech Republic MeSH
- Names of Substances
- Radioactive Fallout MeSH
- Radioactive Pollutants MeSH
- Cesium Radioisotopes MeSH
Activity concentrations of (137)Cs were detected in more than 400 outer spruce bark samples collected at sites variably affected by Chernobyl fallout across the Czech Republic in 1995 and 2010. The temporal changes in the (137)Cs activities were found. The mean effective half-life (TEF) for (137)Cs in spruce bark was 9.6 years, and the mean environmental half-life (TE) was 14 years. The effective half-lives were significantly higher in areas with higher long-term annual precipitation sums. Coefficient a in linear regression y = ax + b of half-lives on precipitation sums was 0.015 y mm(-1) for TEF and 0.036 y mm(-1) for TE. The aggregated transfer factor of (137)Cs from soil to bark was determined and the pre-Chernobyl bark contamination related to year 2010 was estimated.
References provided by Crossref.org
A quarter century of biomonitoring atmospheric pollution in the Czech Republic
