90Sr in northern Sweden : Relationships and annual variations from 1961 to 1969 in lichen, reindeer and man
The transport of fallout-90Sr has been investigated in the food-chain: Lichen-reindeer-man during 1961-1969. The maximum levels which occurred in lichen during 1963-1965 were about 13 nCi/kg dry wt. The90Sr-level in the lichen-carpet decreased to about 5 nCi/kg dry wt. in 1967-1969. The effective ha...
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Language: | English |
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Lippincott Williams & Wilkins
1971
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Online Access: | https://lup.lub.lu.se/record/c616e016-bfb8-48dc-8ac1-6009c7e8d23f https://doi.org/10.1097/00004032-197104000-00004 |
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ftulundlup:oai:lup.lub.lu.se:c616e016-bfb8-48dc-8ac1-6009c7e8d23f 2024-01-28T10:08:09+01:00 90Sr in northern Sweden : Relationships and annual variations from 1961 to 1969 in lichen, reindeer and man Persson, Bertil R. 1971-01-01 https://lup.lub.lu.se/record/c616e016-bfb8-48dc-8ac1-6009c7e8d23f https://doi.org/10.1097/00004032-197104000-00004 eng eng Lippincott Williams & Wilkins https://lup.lub.lu.se/record/c616e016-bfb8-48dc-8ac1-6009c7e8d23f http://dx.doi.org/10.1097/00004032-197104000-00004 pmid:5563855 scopus:0015045617 Health Physics; 20(4), pp 393-402 (1971) ISSN: 0017-9078 contributiontojournal/article info:eu-repo/semantics/article text 1971 ftulundlup https://doi.org/10.1097/00004032-197104000-00004 2024-01-03T23:29:29Z The transport of fallout-90Sr has been investigated in the food-chain: Lichen-reindeer-man during 1961-1969. The maximum levels which occurred in lichen during 1963-1965 were about 13 nCi/kg dry wt. The90Sr-level in the lichen-carpet decreased to about 5 nCi/kg dry wt. in 1967-1969. The effective half-time of 90Sr in the lichen-carpet was estimated to be 2.5 ± 0.8 a. The vertical distribution of90Sr in the lichen-carpet was studied during 1966— 1969 and indicates an increased deposition of90Sr-fallout during 1968-1969. The90Sr/Ca-ratio has also been studied in reindeer-bone and muscle tissues. This ratio increased up to 1965 to about 700 pCi/g in reindeer-meat and to 1000pCi/g in bone, and then there was a decrease to about 400 pCi/g in both meat and bone in 1969. The seasonal variation of the 90Sr/Ca-ratio in reindeer-meat and bone since 1965 was evaluated from the 90Sr/Ca-ratio in lichen by using a three-compartment model for the Sr-retention in reindeer. The90Sr/Ca-ratio in the skeleton of adult Swedish Lapps was calculated from the 90Sr/Ca-ratio estimated for diet. The absorbed dose delivered by90Sr +90Y during the period 1950-1970 has been estimated to be 30 mrad to the endosteum (cells lining bone-surfaces) and 20 mrad to the active bone-marrow. Corresponding absorbed dose values for the whole period 1950-2000 were estimated to be 80 ± 15 mrad to the whole endosteum and 50 ± 10 mrad to the bone-marrow. Article in Journal/Newspaper Northern Sweden Lund University Publications (LUP) Health Physics 20 4 393 402 |
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Open Polar |
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Lund University Publications (LUP) |
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ftulundlup |
language |
English |
description |
The transport of fallout-90Sr has been investigated in the food-chain: Lichen-reindeer-man during 1961-1969. The maximum levels which occurred in lichen during 1963-1965 were about 13 nCi/kg dry wt. The90Sr-level in the lichen-carpet decreased to about 5 nCi/kg dry wt. in 1967-1969. The effective half-time of 90Sr in the lichen-carpet was estimated to be 2.5 ± 0.8 a. The vertical distribution of90Sr in the lichen-carpet was studied during 1966— 1969 and indicates an increased deposition of90Sr-fallout during 1968-1969. The90Sr/Ca-ratio has also been studied in reindeer-bone and muscle tissues. This ratio increased up to 1965 to about 700 pCi/g in reindeer-meat and to 1000pCi/g in bone, and then there was a decrease to about 400 pCi/g in both meat and bone in 1969. The seasonal variation of the 90Sr/Ca-ratio in reindeer-meat and bone since 1965 was evaluated from the 90Sr/Ca-ratio in lichen by using a three-compartment model for the Sr-retention in reindeer. The90Sr/Ca-ratio in the skeleton of adult Swedish Lapps was calculated from the 90Sr/Ca-ratio estimated for diet. The absorbed dose delivered by90Sr +90Y during the period 1950-1970 has been estimated to be 30 mrad to the endosteum (cells lining bone-surfaces) and 20 mrad to the active bone-marrow. Corresponding absorbed dose values for the whole period 1950-2000 were estimated to be 80 ± 15 mrad to the whole endosteum and 50 ± 10 mrad to the bone-marrow. |
format |
Article in Journal/Newspaper |
author |
Persson, Bertil R. |
spellingShingle |
Persson, Bertil R. 90Sr in northern Sweden : Relationships and annual variations from 1961 to 1969 in lichen, reindeer and man |
author_facet |
Persson, Bertil R. |
author_sort |
Persson, Bertil R. |
title |
90Sr in northern Sweden : Relationships and annual variations from 1961 to 1969 in lichen, reindeer and man |
title_short |
90Sr in northern Sweden : Relationships and annual variations from 1961 to 1969 in lichen, reindeer and man |
title_full |
90Sr in northern Sweden : Relationships and annual variations from 1961 to 1969 in lichen, reindeer and man |
title_fullStr |
90Sr in northern Sweden : Relationships and annual variations from 1961 to 1969 in lichen, reindeer and man |
title_full_unstemmed |
90Sr in northern Sweden : Relationships and annual variations from 1961 to 1969 in lichen, reindeer and man |
title_sort |
90sr in northern sweden : relationships and annual variations from 1961 to 1969 in lichen, reindeer and man |
publisher |
Lippincott Williams & Wilkins |
publishDate |
1971 |
url |
https://lup.lub.lu.se/record/c616e016-bfb8-48dc-8ac1-6009c7e8d23f https://doi.org/10.1097/00004032-197104000-00004 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Health Physics; 20(4), pp 393-402 (1971) ISSN: 0017-9078 |
op_relation |
https://lup.lub.lu.se/record/c616e016-bfb8-48dc-8ac1-6009c7e8d23f http://dx.doi.org/10.1097/00004032-197104000-00004 pmid:5563855 scopus:0015045617 |
op_doi |
https://doi.org/10.1097/00004032-197104000-00004 |
container_title |
Health Physics |
container_volume |
20 |
container_issue |
4 |
container_start_page |
393 |
op_container_end_page |
402 |
_version_ |
1789336607685345280 |