Radiocarbon in the Environment
Abstract
Prior to 1950 the worldwide inventory of 14 C was 2.2 X 10 30 atoms. Nuclear tests added an additional 6 X 10 28 14 C atoms to the atmosphere. This had a dramatic effect: for a time the 14 C concentrations of the troposphere at mid-latitudes of the northern hemisphere were double their pre-1950 levels. The decline of the 14 C levels of the atmosphere, owing to atmospheric mixing and exchange of CO 2 with the sea, has given valuable insight into both of these processes. The 14 C levels in the oceans are increasing as a result of this exchange. This increase should prove valuable as a tracer in oceanography. Other potential applications of the increase of 14 C in the atmosphere and the sea are discussed.
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At its 1963 maximum, bomb 14C nearly doubled the 14C content of the atmosphere and biosphere.
“The maximum amount of this artificial 14 C was present in the atmosphere and thus was also contained in living terrestrial organics in 1963 in amounts that resulted in almost doubling the amount of atmospheric and biospheric 14 C (Fairhall and Young 1970;Stuiver and Braziunas 1998).”
From Misunderstandings Concerning the Significance of AMS Background <sup>14</sup>C Measurements (2018) · cites this paper as Fairhall and Young 1970
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Misunderstandings Concerning the Significance of AMS Background <sup>14</sup>C Measurements
Taylor, R. E., Southon, J. R., & Santos, G. M. (2018) · Radiocarbon · doi:10.1017/rdc.2018.15 · Cited by 3 · see citing works
- Authors
- FAIRHALL, A. W., & YOUNG, J. A.
- Affiliations
- University of Washington (US)
- Venue
- Advances in Chemistry
- Publisher
- AMERICAN CHEMICAL SOCIETY
- Published
- 1970-01-01
- Pages
- 401-418
- ISSN
- 0065-2393 (ISSN-L)
- OpenAlex
- W1486281862
- Cited by
- 24
- References
- 0
- Citations by year
- 2022: 1 · 2018: 1 · 2015: 1
- FWCI
- 7.18
- Type
- book chapter
- Language
- en
- Open access
- closed
- Locations
- Advances in chemistry series (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Global and Planetary Change › Radioactive contamination and transfer
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Archaeology and ancient environmental studies
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Groundwater and Isotope Geochemistry
- Keywords
- carbon-14, atmospheric 14C, nuclear weapons testing, atmospheric mixing, air-sea CO2 flux, ocean carbon cycle, ocean tracers
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