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Mercury concentrations in pregnant women in circumpolar Sweden (Kiruna)
Executive, Universitet, Umeå universitet, UmU, Umeå universitet, medicinska fakulteten, folkhälsa och klinisk medicin.
Department of Obstetrics and Gynaecology, Sunderby Hospital, Luleå, Sweden.
Department of Obstetrics and Gynaecology, Sunderby Hospital, Luleå, Sweden, Obstetrics and Gynaecology, Department of Clinical Science, Umeå University, Umeå,.
Executive, Universitet, Umeå universitet, UmU, Umeå universitet, medicinska fakulteten, folkhälsa och klinisk medicin. Department of Biobank Research, Umeå University, Umeå, Sweden.
Responsible organisation
2018 (English)Report (Other academic)
Abstract [en]

High exposure to mercury have been found in populations living in circumpolar areas, due to high consumption of sea food and accumulation of mercury closer to the north pole. The developing fetus is especially sensitive to effects of mercury. Exposure to mercury has previously been examined in pregnant women in Sweden, but not in pregnant women residing in Sweden north of the polar circle.

In the years 2015-2016, mercury was measured in whole blood from 51 pregnant women living in the city of Kiruna in circumpolar Sweden, taking part in an international comparison between eight circumpolar countries. This report presents the Swedish results on mercury concentrations and associations with some exposure determinants. Also, compliance to dietary advice on fish consumption, appointed to fertile women, was examined.

The median concentration of total-Hg in whole blood was 0.40 μg/L (min, max; <0.40, 1.88) among the 51 pregnant women in Kiruna. This is similar or lower compared to concentrations of mercury in pregnant women in other parts of Sweden. None of the women in the study had concentrations of mercury that are considered as dangerous.

Mercury concentrations were associated with total fish consumption but not to consumption of predatory fish, known to be higher in mercury. All of the women in the study had knowledge about dietary advice on fish consumption. One woman exceeded the recommended consumption of predatory fish, limited due to risk of high mercury content, but this woman did not have high concentrations of mercury. While the vast majority of women thus followed the recommendations of not eating too much polluted fish, only 15 % of the women reported sufficient fish consumption to comply with the dietary advice (2-3 times/week).

In conclusion, pregnant women in circumpolar Sweden have low exposure to mercury, and do not deviant from pregnant women in other parts of Sweden. Knowledge about dietary advice on fish consumption appointed to fertile women is very good. The public health concern though, is that pregnant women in circumpolar Sweden do not eat enough fish.

Place, publisher, year, edition, pages
2018. , p. 16
Series
Yrkes- och miljömedicin i Umeå rapporterar, nr 3/2018
National Category
Environmental Sciences
Research subject
Finance, National; Miljöövervakning, Health; Environmental Objectives, A Non-Toxic Environment
Identifiers
URN: urn:nbn:se:naturvardsverket:diva-7666OAI: oai:DiVA.org:naturvardsverket-7666DiVA, id: diva2:1195429
Available from: 2018-04-05 Created: 2018-04-05 Last updated: 2018-04-05Bibliographically approved

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CiteExportLink to record
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