Dose assessment for polonium-210 (Po-210) in New Zealand shellfish
Copyright © 2021 The Authors. Published by Elsevier Ltd.. All rights reserved..
Worldwide, Po-210 is an important contributor to human ionising radiation exposure through food. To characterise the ionising radiation dose for New Zealanders from Po-210 in shellfish, a dose assessment was undertaken. Deterministic and probabilistic dietary models were constructed by assigning shellfish consumption rates to Po-210 activity concentrations measured in shellfish. Modelling was undertaken for different shellfish consumer populations and geographical areas. Dietary modelling estimated an annual dose range from 4 μSv to 6070 μSv. The lowest dose was calculated for the overall shellfish consumer population residing in areas where baseline Po-210 activity concentrations were measured in shellfish. The highest dose was calculated for the high shellfish consumer population residing in areas where elevated activity concentrations were measured in shellfish. For the majority of the New Zealand population, the total estimated dose did not exceed the selected reference level of 1000 μSv, and Po-210 is therefore not a cause of concern. About 50% of high shellfish consumers residing in areas where shellfish had elevated Po-210 activity concentrations were exposed to ionising radiation resulting in an annual dose higher than 1000 μSv. Exposure assessment for different demographic groups identified that higher shellfish consumption rates in the population identifying as Māori lead to higher doses of ionising radiation for this group.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2022 |
|---|---|
| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:242 |
|---|---|
| Enthalten in: |
Journal of environmental radioactivity - 242(2022) vom: 19. Feb., Seite 106788 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Guy, Sarah [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
DQY03U61EJ |
|---|
| Anmerkungen: |
Date Completed 22.12.2021 Date Revised 22.12.2021 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1016/j.jenvrad.2021.106788 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM333982088 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM333982088 | ||
| 003 | DE-627 | ||
| 005 | 20231225222749.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2022 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.jenvrad.2021.106788 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1113.xml |
| 035 | |a (DE-627)NLM333982088 | ||
| 035 | |a (NLM)34861457 | ||
| 035 | |a (PII)S0265-931X(21)00260-5 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Guy, Sarah |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Dose assessment for polonium-210 (Po-210) in New Zealand shellfish |
| 264 | 1 | |c 2022 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 22.12.2021 | ||
| 500 | |a Date Revised 22.12.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2021 The Authors. Published by Elsevier Ltd.. All rights reserved. | ||
| 520 | |a Worldwide, Po-210 is an important contributor to human ionising radiation exposure through food. To characterise the ionising radiation dose for New Zealanders from Po-210 in shellfish, a dose assessment was undertaken. Deterministic and probabilistic dietary models were constructed by assigning shellfish consumption rates to Po-210 activity concentrations measured in shellfish. Modelling was undertaken for different shellfish consumer populations and geographical areas. Dietary modelling estimated an annual dose range from 4 μSv to 6070 μSv. The lowest dose was calculated for the overall shellfish consumer population residing in areas where baseline Po-210 activity concentrations were measured in shellfish. The highest dose was calculated for the high shellfish consumer population residing in areas where elevated activity concentrations were measured in shellfish. For the majority of the New Zealand population, the total estimated dose did not exceed the selected reference level of 1000 μSv, and Po-210 is therefore not a cause of concern. About 50% of high shellfish consumers residing in areas where shellfish had elevated Po-210 activity concentrations were exposed to ionising radiation resulting in an annual dose higher than 1000 μSv. Exposure assessment for different demographic groups identified that higher shellfish consumption rates in the population identifying as Māori lead to higher doses of ionising radiation for this group | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Dietary exposure modelling | |
| 650 | 4 | |a Exposure assessment | |
| 650 | 4 | |a Natural radionuclide | |
| 650 | 4 | |a New Zealand | |
| 650 | 4 | |a Polonium-210 | |
| 650 | 4 | |a Shellfish | |
| 650 | 7 | |a Polonium |2 NLM | |
| 650 | 7 | |a DQY03U61EJ |2 NLM | |
| 650 | 7 | |a Polonium-210 |2 NLM | |
| 650 | 7 | |a QJW5366Y3Q |2 NLM | |
| 700 | 1 | |a Gaw, Sally |e verfasserin |4 aut | |
| 700 | 1 | |a Beaven, Sarah |e verfasserin |4 aut | |
| 700 | 1 | |a Pearson, Andrew J |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Journal of environmental radioactivity |d 1993 |g 242(2022) vom: 19. Feb., Seite 106788 |w (DE-627)NLM08482574X |x 1879-1700 |7 nnns |
| 773 | 1 | 8 | |g volume:242 |g year:2022 |g day:19 |g month:02 |g pages:106788 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1016/j.jenvrad.2021.106788 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 242 |j 2022 |b 19 |c 02 |h 106788 | ||