Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system

In connection with the Chernobyl fallout and the subsequent deposition of radionuclides in Sweden, Swedish municipalities launched a measurement program to monitor the external radiation exposure. This program encompasses measurements of the ambient dose equivalent rate 1 m above ground at selected...
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Autor*in:	Jönsson, Mattias [verfasserIn] Tondel, Martin Isaksson, Mats Finck, Robert Wålinder, Robert Mamour, Afrah Rääf, Christopher

Format:	Artikel
Sprache:	Englisch

Erschienen:	2017

Systematik:	XA 10000

Übergeordnetes Werk:	Enthalten in: Journal of environmental radioactivity - London : Elsevier Applied Science Publ., 1984, 178-179(2017), Seite 16
Übergeordnetes Werk:	volume:178-179 ; year:2017 ; pages:16

Links:	Link aufrufen

Katalog-ID:	OLC1997851644

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520			\|a In connection with the Chernobyl fallout and the subsequent deposition of radionuclides in Sweden, Swedish municipalities launched a measurement program to monitor the external radiation exposure. This program encompasses measurements of the ambient dose equivalent rate 1 m above ground at selected locations, and repeats those measurements at the same locations at 7-month intervals. Measurement data compiled from the seven locations with the highest deposition were combined with data from aerial surveys since May 1986 of ground deposition of (137)Cs, high-resolution gamma spectrometry performed at four locations in May 1986, and measurements from fixed continuous air gamma rate monitoring stations from 28 April to 15 May 1986. Based on these datasets, a model of the time pattern of the external dose rate in terms of ambient dose equivalent rate from the Chernobyl fallout was developed. The decrease in the ambient dose equivalent rate could, on average, be described by a four-component exponential decay function with effective half-times of 6.8 ± 0.3 d, 104 ± 26 d, 1.0 ± 0.02 y and 5.5 ± 0.09 y, respectively. The predominant contributions to the external dose rate in the first month were from short-lived fission products superseded by (134)Cs and then (137)Cs. Integrated over 70 y and using extrapolation of the curve fits, our model predicts that (137)Cs contributes about 60% and (134)Cs contributes about 30% of the external effective dose at these seven locations. The projected time-integrated 70 y external effective dose to an unshielded person from all nuclides per unit total activity deposition of (137)Cs is estimated to be 0.29 ± 0.0.08 mSv/(kBq m(-2)). These results are in agreement with those found in Chernobyl contaminated Russian forest areas, and emphasize the usefulness of maintaining a long-term and regular measurement program in contaminated areas.
700	1		\|a Tondel, Martin \|4 oth
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700	1		\|a Mamour, Afrah \|4 oth
700	1		\|a Rääf, Christopher \|4 oth
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spelling	PQ20171125 (DE-627)OLC1997851644 (DE-599)GBVOLC1997851644 (PRQ)swepub_primary_oai_lup_lub_lu_se_496d7019_8537_4504_b9de_5d202eddcd7a0 (KEY)0138567420170000178000000016modellingtheexternalradiationexposurefromthecherno DE-627 ger DE-627 rakwb eng 690 540 DE-600 XA 10000 AVZ rvk 33.56 bkl 43.68 bkl Jönsson, Mattias verfasserin aut Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In connection with the Chernobyl fallout and the subsequent deposition of radionuclides in Sweden, Swedish municipalities launched a measurement program to monitor the external radiation exposure. This program encompasses measurements of the ambient dose equivalent rate 1 m above ground at selected locations, and repeats those measurements at the same locations at 7-month intervals. Measurement data compiled from the seven locations with the highest deposition were combined with data from aerial surveys since May 1986 of ground deposition of (137)Cs, high-resolution gamma spectrometry performed at four locations in May 1986, and measurements from fixed continuous air gamma rate monitoring stations from 28 April to 15 May 1986. Based on these datasets, a model of the time pattern of the external dose rate in terms of ambient dose equivalent rate from the Chernobyl fallout was developed. The decrease in the ambient dose equivalent rate could, on average, be described by a four-component exponential decay function with effective half-times of 6.8 ± 0.3 d, 104 ± 26 d, 1.0 ± 0.02 y and 5.5 ± 0.09 y, respectively. The predominant contributions to the external dose rate in the first month were from short-lived fission products superseded by (134)Cs and then (137)Cs. Integrated over 70 y and using extrapolation of the curve fits, our model predicts that (137)Cs contributes about 60% and (134)Cs contributes about 30% of the external effective dose at these seven locations. The projected time-integrated 70 y external effective dose to an unshielded person from all nuclides per unit total activity deposition of (137)Cs is estimated to be 0.29 ± 0.0.08 mSv/(kBq m(-2)). These results are in agreement with those found in Chernobyl contaminated Russian forest areas, and emphasize the usefulness of maintaining a long-term and regular measurement program in contaminated areas. Tondel, Martin oth Isaksson, Mats oth Finck, Robert oth Wålinder, Robert oth Mamour, Afrah oth Rääf, Christopher oth Enthalten in Journal of environmental radioactivity London : Elsevier Applied Science Publ., 1984 178-179(2017), Seite 16 (DE-627)130444367 (DE-600)710249-5 (DE-576)01597877X 0265-931X nnns volume:178-179 year:2017 pages:16 http://lup.lub.lu.se/record/496d7019-8537-4504-b9de-5d202eddcd7a GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 GBV_ILN_170 XA 10000 33.56 AVZ 43.68 AVZ AR 178-179 2017 16
allfields_unstemmed	PQ20171125 (DE-627)OLC1997851644 (DE-599)GBVOLC1997851644 (PRQ)swepub_primary_oai_lup_lub_lu_se_496d7019_8537_4504_b9de_5d202eddcd7a0 (KEY)0138567420170000178000000016modellingtheexternalradiationexposurefromthecherno DE-627 ger DE-627 rakwb eng 690 540 DE-600 XA 10000 AVZ rvk 33.56 bkl 43.68 bkl Jönsson, Mattias verfasserin aut Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In connection with the Chernobyl fallout and the subsequent deposition of radionuclides in Sweden, Swedish municipalities launched a measurement program to monitor the external radiation exposure. This program encompasses measurements of the ambient dose equivalent rate 1 m above ground at selected locations, and repeats those measurements at the same locations at 7-month intervals. Measurement data compiled from the seven locations with the highest deposition were combined with data from aerial surveys since May 1986 of ground deposition of (137)Cs, high-resolution gamma spectrometry performed at four locations in May 1986, and measurements from fixed continuous air gamma rate monitoring stations from 28 April to 15 May 1986. Based on these datasets, a model of the time pattern of the external dose rate in terms of ambient dose equivalent rate from the Chernobyl fallout was developed. The decrease in the ambient dose equivalent rate could, on average, be described by a four-component exponential decay function with effective half-times of 6.8 ± 0.3 d, 104 ± 26 d, 1.0 ± 0.02 y and 5.5 ± 0.09 y, respectively. The predominant contributions to the external dose rate in the first month were from short-lived fission products superseded by (134)Cs and then (137)Cs. Integrated over 70 y and using extrapolation of the curve fits, our model predicts that (137)Cs contributes about 60% and (134)Cs contributes about 30% of the external effective dose at these seven locations. The projected time-integrated 70 y external effective dose to an unshielded person from all nuclides per unit total activity deposition of (137)Cs is estimated to be 0.29 ± 0.0.08 mSv/(kBq m(-2)). These results are in agreement with those found in Chernobyl contaminated Russian forest areas, and emphasize the usefulness of maintaining a long-term and regular measurement program in contaminated areas. Tondel, Martin oth Isaksson, Mats oth Finck, Robert oth Wålinder, Robert oth Mamour, Afrah oth Rääf, Christopher oth Enthalten in Journal of environmental radioactivity London : Elsevier Applied Science Publ., 1984 178-179(2017), Seite 16 (DE-627)130444367 (DE-600)710249-5 (DE-576)01597877X 0265-931X nnns volume:178-179 year:2017 pages:16 http://lup.lub.lu.se/record/496d7019-8537-4504-b9de-5d202eddcd7a GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 GBV_ILN_170 XA 10000 33.56 AVZ 43.68 AVZ AR 178-179 2017 16
allfieldsGer	PQ20171125 (DE-627)OLC1997851644 (DE-599)GBVOLC1997851644 (PRQ)swepub_primary_oai_lup_lub_lu_se_496d7019_8537_4504_b9de_5d202eddcd7a0 (KEY)0138567420170000178000000016modellingtheexternalradiationexposurefromthecherno DE-627 ger DE-627 rakwb eng 690 540 DE-600 XA 10000 AVZ rvk 33.56 bkl 43.68 bkl Jönsson, Mattias verfasserin aut Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In connection with the Chernobyl fallout and the subsequent deposition of radionuclides in Sweden, Swedish municipalities launched a measurement program to monitor the external radiation exposure. This program encompasses measurements of the ambient dose equivalent rate 1 m above ground at selected locations, and repeats those measurements at the same locations at 7-month intervals. Measurement data compiled from the seven locations with the highest deposition were combined with data from aerial surveys since May 1986 of ground deposition of (137)Cs, high-resolution gamma spectrometry performed at four locations in May 1986, and measurements from fixed continuous air gamma rate monitoring stations from 28 April to 15 May 1986. Based on these datasets, a model of the time pattern of the external dose rate in terms of ambient dose equivalent rate from the Chernobyl fallout was developed. The decrease in the ambient dose equivalent rate could, on average, be described by a four-component exponential decay function with effective half-times of 6.8 ± 0.3 d, 104 ± 26 d, 1.0 ± 0.02 y and 5.5 ± 0.09 y, respectively. The predominant contributions to the external dose rate in the first month were from short-lived fission products superseded by (134)Cs and then (137)Cs. Integrated over 70 y and using extrapolation of the curve fits, our model predicts that (137)Cs contributes about 60% and (134)Cs contributes about 30% of the external effective dose at these seven locations. The projected time-integrated 70 y external effective dose to an unshielded person from all nuclides per unit total activity deposition of (137)Cs is estimated to be 0.29 ± 0.0.08 mSv/(kBq m(-2)). These results are in agreement with those found in Chernobyl contaminated Russian forest areas, and emphasize the usefulness of maintaining a long-term and regular measurement program in contaminated areas. Tondel, Martin oth Isaksson, Mats oth Finck, Robert oth Wålinder, Robert oth Mamour, Afrah oth Rääf, Christopher oth Enthalten in Journal of environmental radioactivity London : Elsevier Applied Science Publ., 1984 178-179(2017), Seite 16 (DE-627)130444367 (DE-600)710249-5 (DE-576)01597877X 0265-931X nnns volume:178-179 year:2017 pages:16 http://lup.lub.lu.se/record/496d7019-8537-4504-b9de-5d202eddcd7a GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 GBV_ILN_170 XA 10000 33.56 AVZ 43.68 AVZ AR 178-179 2017 16
allfieldsSound	PQ20171125 (DE-627)OLC1997851644 (DE-599)GBVOLC1997851644 (PRQ)swepub_primary_oai_lup_lub_lu_se_496d7019_8537_4504_b9de_5d202eddcd7a0 (KEY)0138567420170000178000000016modellingtheexternalradiationexposurefromthecherno DE-627 ger DE-627 rakwb eng 690 540 DE-600 XA 10000 AVZ rvk 33.56 bkl 43.68 bkl Jönsson, Mattias verfasserin aut Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In connection with the Chernobyl fallout and the subsequent deposition of radionuclides in Sweden, Swedish municipalities launched a measurement program to monitor the external radiation exposure. This program encompasses measurements of the ambient dose equivalent rate 1 m above ground at selected locations, and repeats those measurements at the same locations at 7-month intervals. Measurement data compiled from the seven locations with the highest deposition were combined with data from aerial surveys since May 1986 of ground deposition of (137)Cs, high-resolution gamma spectrometry performed at four locations in May 1986, and measurements from fixed continuous air gamma rate monitoring stations from 28 April to 15 May 1986. Based on these datasets, a model of the time pattern of the external dose rate in terms of ambient dose equivalent rate from the Chernobyl fallout was developed. The decrease in the ambient dose equivalent rate could, on average, be described by a four-component exponential decay function with effective half-times of 6.8 ± 0.3 d, 104 ± 26 d, 1.0 ± 0.02 y and 5.5 ± 0.09 y, respectively. The predominant contributions to the external dose rate in the first month were from short-lived fission products superseded by (134)Cs and then (137)Cs. Integrated over 70 y and using extrapolation of the curve fits, our model predicts that (137)Cs contributes about 60% and (134)Cs contributes about 30% of the external effective dose at these seven locations. The projected time-integrated 70 y external effective dose to an unshielded person from all nuclides per unit total activity deposition of (137)Cs is estimated to be 0.29 ± 0.0.08 mSv/(kBq m(-2)). These results are in agreement with those found in Chernobyl contaminated Russian forest areas, and emphasize the usefulness of maintaining a long-term and regular measurement program in contaminated areas. Tondel, Martin oth Isaksson, Mats oth Finck, Robert oth Wålinder, Robert oth Mamour, Afrah oth Rääf, Christopher oth Enthalten in Journal of environmental radioactivity London : Elsevier Applied Science Publ., 1984 178-179(2017), Seite 16 (DE-627)130444367 (DE-600)710249-5 (DE-576)01597877X 0265-931X nnns volume:178-179 year:2017 pages:16 http://lup.lub.lu.se/record/496d7019-8537-4504-b9de-5d202eddcd7a GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_21 GBV_ILN_70 GBV_ILN_170 XA 10000 33.56 AVZ 43.68 AVZ AR 178-179 2017 16
language	English
source	Enthalten in Journal of environmental radioactivity 178-179(2017), Seite 16 volume:178-179 year:2017 pages:16
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author	Jönsson, Mattias
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topic_title	690 540 DE-600 XA 10000 AVZ rvk 33.56 bkl 43.68 bkl Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system
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title	Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system
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title_full	Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system
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title_sort	modelling the external radiation exposure from the chernobyl fallout using data from the swedish municipality measurement system
title_auth	Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system
abstract	In connection with the Chernobyl fallout and the subsequent deposition of radionuclides in Sweden, Swedish municipalities launched a measurement program to monitor the external radiation exposure. This program encompasses measurements of the ambient dose equivalent rate 1 m above ground at selected locations, and repeats those measurements at the same locations at 7-month intervals. Measurement data compiled from the seven locations with the highest deposition were combined with data from aerial surveys since May 1986 of ground deposition of (137)Cs, high-resolution gamma spectrometry performed at four locations in May 1986, and measurements from fixed continuous air gamma rate monitoring stations from 28 April to 15 May 1986. Based on these datasets, a model of the time pattern of the external dose rate in terms of ambient dose equivalent rate from the Chernobyl fallout was developed. The decrease in the ambient dose equivalent rate could, on average, be described by a four-component exponential decay function with effective half-times of 6.8 ± 0.3 d, 104 ± 26 d, 1.0 ± 0.02 y and 5.5 ± 0.09 y, respectively. The predominant contributions to the external dose rate in the first month were from short-lived fission products superseded by (134)Cs and then (137)Cs. Integrated over 70 y and using extrapolation of the curve fits, our model predicts that (137)Cs contributes about 60% and (134)Cs contributes about 30% of the external effective dose at these seven locations. The projected time-integrated 70 y external effective dose to an unshielded person from all nuclides per unit total activity deposition of (137)Cs is estimated to be 0.29 ± 0.0.08 mSv/(kBq m(-2)). These results are in agreement with those found in Chernobyl contaminated Russian forest areas, and emphasize the usefulness of maintaining a long-term and regular measurement program in contaminated areas.
abstractGer	In connection with the Chernobyl fallout and the subsequent deposition of radionuclides in Sweden, Swedish municipalities launched a measurement program to monitor the external radiation exposure. This program encompasses measurements of the ambient dose equivalent rate 1 m above ground at selected locations, and repeats those measurements at the same locations at 7-month intervals. Measurement data compiled from the seven locations with the highest deposition were combined with data from aerial surveys since May 1986 of ground deposition of (137)Cs, high-resolution gamma spectrometry performed at four locations in May 1986, and measurements from fixed continuous air gamma rate monitoring stations from 28 April to 15 May 1986. Based on these datasets, a model of the time pattern of the external dose rate in terms of ambient dose equivalent rate from the Chernobyl fallout was developed. The decrease in the ambient dose equivalent rate could, on average, be described by a four-component exponential decay function with effective half-times of 6.8 ± 0.3 d, 104 ± 26 d, 1.0 ± 0.02 y and 5.5 ± 0.09 y, respectively. The predominant contributions to the external dose rate in the first month were from short-lived fission products superseded by (134)Cs and then (137)Cs. Integrated over 70 y and using extrapolation of the curve fits, our model predicts that (137)Cs contributes about 60% and (134)Cs contributes about 30% of the external effective dose at these seven locations. The projected time-integrated 70 y external effective dose to an unshielded person from all nuclides per unit total activity deposition of (137)Cs is estimated to be 0.29 ± 0.0.08 mSv/(kBq m(-2)). These results are in agreement with those found in Chernobyl contaminated Russian forest areas, and emphasize the usefulness of maintaining a long-term and regular measurement program in contaminated areas.
abstract_unstemmed	In connection with the Chernobyl fallout and the subsequent deposition of radionuclides in Sweden, Swedish municipalities launched a measurement program to monitor the external radiation exposure. This program encompasses measurements of the ambient dose equivalent rate 1 m above ground at selected locations, and repeats those measurements at the same locations at 7-month intervals. Measurement data compiled from the seven locations with the highest deposition were combined with data from aerial surveys since May 1986 of ground deposition of (137)Cs, high-resolution gamma spectrometry performed at four locations in May 1986, and measurements from fixed continuous air gamma rate monitoring stations from 28 April to 15 May 1986. Based on these datasets, a model of the time pattern of the external dose rate in terms of ambient dose equivalent rate from the Chernobyl fallout was developed. The decrease in the ambient dose equivalent rate could, on average, be described by a four-component exponential decay function with effective half-times of 6.8 ± 0.3 d, 104 ± 26 d, 1.0 ± 0.02 y and 5.5 ± 0.09 y, respectively. The predominant contributions to the external dose rate in the first month were from short-lived fission products superseded by (134)Cs and then (137)Cs. Integrated over 70 y and using extrapolation of the curve fits, our model predicts that (137)Cs contributes about 60% and (134)Cs contributes about 30% of the external effective dose at these seven locations. The projected time-integrated 70 y external effective dose to an unshielded person from all nuclides per unit total activity deposition of (137)Cs is estimated to be 0.29 ± 0.0.08 mSv/(kBq m(-2)). These results are in agreement with those found in Chernobyl contaminated Russian forest areas, and emphasize the usefulness of maintaining a long-term and regular measurement program in contaminated areas.
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title_short	Modelling the external radiation exposure from the Chernobyl fallout using data from the Swedish municipality measurement system
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