Post-Chernobyl Cs-137 in the atmosphere of Thessaloniki: a consequence of the financial crisis in Greece
摘要:
The background radiation level of (137)Cs at the urban atmosphere of Thessaloniki has been increased during the recent decade only due to the Fukushima accident fallout. Since then, no other signal of (137)Cs was observed until the winter period of 2013, when slightly elevated (137)Cs concentrations were measured. The (137)Cs signals observed were up to 12 μBq m(-3), mainly during holidays and weekends followed by lower or even non-detectable activities in the next working days. Those episodes are attributed to the increase of biomass products combustion for residential heating as this year the tax of oil for heating was drastically raised as a consequence of the financial crisis. A preliminary survey of various wood products as well as of bottom ashes from different domestic burning devices is presented. (137)Cs concentrations up to 11 Bq kg(-1) were measured in wood products and up to 500 Bq kg(-1) in ash samples.
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关键词:
137Cs in atmosphere Biomass combustion 137Cs in wood 137Cs in ash Wood-to-ash” enrichment factor
DOI:
10.1016/j.jenvrad.2013.11.007
被引量:
年份:
2014
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