Analysis of Daily 210Pb Air Concentrations in Finland, 1967-1996
Daily aerosol samples have been analysed for 210Pb by the Finnish Meteorological Institute since 1967. The arithmetic and geometric mean concentration values were respectively 282 and 208 �Bq.m-3 for southern Finland and 237 and 169 �Bq.m-3 for northern Finland. The daily concentration values were l...
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Oxford University Press
1998
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fthighwire:oai:open-archive.highwire.org:rpd:77/3/191 2023-05-15T17:42:14+02:00 Analysis of Daily 210Pb Air Concentrations in Finland, 1967-1996 Paatero, J. Hatakka, J. Mattsson, R. Viisanen, Y. 1998-06-01 00:00:00.0 text/html http://rpd.oxfordjournals.org/cgi/content/short/77/3/191 https://doi.org/10.1093/oxfordjournals.rpd.a032310 en eng Oxford University Press http://rpd.oxfordjournals.org/cgi/content/short/77/3/191 http://dx.doi.org/10.1093/oxfordjournals.rpd.a032310 Copyright (C) 1998, Nuclear Technology Publishing Article TEXT 1998 fthighwire https://doi.org/10.1093/oxfordjournals.rpd.a032310 2016-11-16T16:59:48Z Daily aerosol samples have been analysed for 210Pb by the Finnish Meteorological Institute since 1967. The arithmetic and geometric mean concentration values were respectively 282 and 208 �Bq.m-3 for southern Finland and 237 and 169 �Bq.m-3 for northern Finland. The daily concentration values were log-normally distributed. The seasonal variations generally follow the vertical mixing in the lower atmosphere, displaying high concentrations in winter with a low mixing height, and vice versa in summer. Usually the lowest 210Pb air concentrations are associated with westerly winds and the highest concentrations with easterly winds. In northern Finland, however, relatively high concentrations were unexpectedly measured during northwesterly winds. Some of these events were connected with high pressure areas over Scandinavia bringing air masses from the European continent. High winter concentrations were closely connected with a cold North Sea surface. No evident trends pertaining to possible climatic changes are discernible in this 30 year observation series. Text Northern Finland HighWire Press (Stanford University) Radiation Protection Dosimetry 77 3 191 198 |
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Article Paatero, J. Hatakka, J. Mattsson, R. Viisanen, Y. Analysis of Daily 210Pb Air Concentrations in Finland, 1967-1996 |
topic_facet |
Article |
description |
Daily aerosol samples have been analysed for 210Pb by the Finnish Meteorological Institute since 1967. The arithmetic and geometric mean concentration values were respectively 282 and 208 �Bq.m-3 for southern Finland and 237 and 169 �Bq.m-3 for northern Finland. The daily concentration values were log-normally distributed. The seasonal variations generally follow the vertical mixing in the lower atmosphere, displaying high concentrations in winter with a low mixing height, and vice versa in summer. Usually the lowest 210Pb air concentrations are associated with westerly winds and the highest concentrations with easterly winds. In northern Finland, however, relatively high concentrations were unexpectedly measured during northwesterly winds. Some of these events were connected with high pressure areas over Scandinavia bringing air masses from the European continent. High winter concentrations were closely connected with a cold North Sea surface. No evident trends pertaining to possible climatic changes are discernible in this 30 year observation series. |
format |
Text |
author |
Paatero, J. Hatakka, J. Mattsson, R. Viisanen, Y. |
author_facet |
Paatero, J. Hatakka, J. Mattsson, R. Viisanen, Y. |
author_sort |
Paatero, J. |
title |
Analysis of Daily 210Pb Air Concentrations in Finland, 1967-1996 |
title_short |
Analysis of Daily 210Pb Air Concentrations in Finland, 1967-1996 |
title_full |
Analysis of Daily 210Pb Air Concentrations in Finland, 1967-1996 |
title_fullStr |
Analysis of Daily 210Pb Air Concentrations in Finland, 1967-1996 |
title_full_unstemmed |
Analysis of Daily 210Pb Air Concentrations in Finland, 1967-1996 |
title_sort |
analysis of daily 210pb air concentrations in finland, 1967-1996 |
publisher |
Oxford University Press |
publishDate |
1998 |
url |
http://rpd.oxfordjournals.org/cgi/content/short/77/3/191 https://doi.org/10.1093/oxfordjournals.rpd.a032310 |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_relation |
http://rpd.oxfordjournals.org/cgi/content/short/77/3/191 http://dx.doi.org/10.1093/oxfordjournals.rpd.a032310 |
op_rights |
Copyright (C) 1998, Nuclear Technology Publishing |
op_doi |
https://doi.org/10.1093/oxfordjournals.rpd.a032310 |
container_title |
Radiation Protection Dosimetry |
container_volume |
77 |
container_issue |
3 |
container_start_page |
191 |
op_container_end_page |
198 |
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1766144068037902336 |