Radiocarbon concentration in urban area

• Autorzy: Rakowski A. Z. , Kuc T. , Nakamura T. , Pazdur A.
• Języki publikacji: EN

Abstrakty

EN

Radiocarbon concentration has decreased in recent years due to the exchange of 14CO2 between the atmosphere and the oceans, but also due to 12CO2 emission from burning fossil fuels. This second phenomenon known as Suess effect can be observed in the highly industrialized and/or urban areas. New data of radiocarbon concentration in tree rings from Nagoya (Central Japan) and Kraków (Poland), which covered last 20 years, were obtained recently. These data were used to find the relationship between the radiocarbon concentrations in atmosphere and biosphere. Additionally, data of radiocarbon concentration in atmospheric CO2 in Kraków were compared with those derived from annual tree rings, to calculate the time of CO2 uptake for pine trees in this region. These data show that radiocarbon concentration of the CO2 in .urban air. is systematically lower than that in "clean air". Data of radiocarbon concentration were fitted by exponential and linear functions to calculate the time of exchange and predict the future level. Using data of carbon dioxide and radiocarbon concentration from Schauinsland fossil component Cf in carbon dioxide concentration level was calculated in Nagoya and Kraków.

Słowa kluczowe

EN

radiocarbon concentration; tree ring; secular variation; carbon dioxide; fossil fuel component

• Wydawca: De Gruyter
• Czasopismo: Geochronometria
• Rocznik: 2005
• Tom: Vol. 24
• Strony: 63--68
• Opis fizyczny: Bibliogr. 23 poz., rys.

Twórcy

autor

Rakowski A. Z.

• Center for Chronological Research, Nagoya University, Nagoya, Japan
• AGH, University of Science and Technology, Kraków, Poland

autor

Kuc T.

• AGH, University of Science and Technology, Kraków, Poland

autor

Nakamura T.

• Center for Chronological Research, Nagoya University, Nagoya, Japan

autor

Pazdur A.

• GADAM Centre, Institute of Physics, Silesian University of Technology, Gliwice, Poland

Bibliografia

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