Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Be-7, (210)pb, and Po-210 in the surface air from the Arctic to Antarctica
Responsible organisation
2014 (English)In: Journal of Environmental Radioactivity, ISSN 0265-931X, E-ISSN 1879-1700, Vol. 138Article in journal (Refereed) Published
Abstract [en]

In the present study we have investigated the activity concentrations of Pb-210, Po-210 as well as Be-7 in surface air of the North and South Atlantic (1988-1989), the Arctic Ocean (1991), and along the coastline of Siberia (1994) during succeeding expeditions in the Swedish Polar Research program. During the cruises in the Arctic Ocean during 1991-07-28 to 1991-10-04 the average air concentrations of Be-7 was 0.6 +/- 0.4 mBq/m(3), Pb-210 40 +/- 4 mu Bq/m(3) and Po-210-38 +/- 10 mu Bq/m(3). During the Swedish-Russian Tundra Ecology-94 expedition along the Siberian coastline the average air concentrations of Be-7 and Pb-210 measured during May-July were 11 +/- 3, and 2.4 +/- 0.4 mBq/m(3), and during July-September they were 7.2 +/- 2 and 2.7 +/- 1.1 mBq/m(3) respectively. The results from measurements of the activity concentration of Pb-210 in the air over the Arctic Ocean vary between 75 and 176 mu Bq/m(3). In the air close to land masses, however, the activity concentration of Pb-210 in the air increases to 269-2712 mu Bq/m(3). The activity concentration of Be-7 in the South Atlantic during the cruise down to Antarctica varied between 1.3 and 1.7 with an average of 1.5 +/- 0.8 mBq/m(3). The activity concentration of Pb-210 in the South Atlantic down to Antarctica varied between 6 and 14 mu Bq/m(3). At the Equator the activity concentration recorded in November 1988 was 630 mu Bq/m(3) and in April 1989 it was 260 mu Bq/m(3). The average activity concentration of Pb-210 during the route Gothenburg-Montevideo in 1988 was 290 and on the return Montevideo-Gothenburg it was 230 mu Bq/m(3). The activity concentration of Po-210 in the South Atlantic down to Antarctica varied between 15 and 58 mu Bq/m(3). At the Equator the activity concentration in November 1988 was 170 and in April 1989 it was 70 mu Bq/m(3). The average activity concentration of Po-210 during the route Gothenburg-Montevideo in 1988 was 63 and on the return Montevideo-Gothenburg it was 60 mu Bq/m(3). The average of the activity concentrations in the Antarctic air of Pb-210 was 27 +/- 10 mu Bq/m(3) and of Po-210 it was 12 +/- 7 mu Bq/m(3). All our results were compiled together with other published data, and the global latitudinal distribution of Pb-210 was converted to total annual deposition (Bq/m(2)/a) and fitted to a 4th degree polynomial. By using the global latitudinal distribution of Po-210/Pb-210-activity ratio from our own results the global latitudinal distribution of Po-210 annual deposition was derived. (C) 2014 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2014. Vol. 138
Keyword [en]
Be-7 (210)pb (210)pb Atmosphere Arctic Antarctica atmospheric deposition fluxes chemical tracer model ground level air tropospheric aerosols pb-210 concentration residence time ambient aerosols transport precipitation cs-137 Environmental Sciences & Ecology
National Category
Natural Sciences
Research subject
SWEDARCTIC 1991, Arctic Ocean 1991; SWEDARCTIC 1994, Tundra Ecology 1994; SWEDARP, SWEDARP 1988/89
Identifiers
URN: urn:nbn:se:polar:diva-1923DOI: 10.1016/j.jenvrad.2014.01.008OAI: oai:DiVA.org:polar-1923DiVA: diva2:810365
Note

ISI Document Delivery No.: AW3WY Times Cited: 0 Cited Reference Count: 65 Persson, Bertil R. R. Holm, Elis Swedish Polar Institute; Royal Physiographic Society in Lund We wish to thank Kjell-Ake Carlsson for his skilful management of the logistics before and during the expeditions and Gertie Svensson for her excellent laboratory work. We also want to thank The Swedish Polar Institute for supporting our participation in the expeditions. Also the support of The Royal Physiographic Society in Lund is greatly acknowledged. 0 Elsevier sci ltd Oxford Si Environmental Sciences

Available from: 2015-05-07 Created: 2015-05-06 Last updated: 2016-11-11

Open Access in DiVA

No full text

Other links

Publisher's full texthttp://<Go to ISI>://WOS:000346215100044
In the same journal
Journal of Environmental Radioactivity
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 67 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf