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Beneficial yet Risky: Evaluate Risks of Fish Diet of Mercury Exposure to Consumers in Sweden
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Biology Education Centre.
2012 (English)Student paper other, 10 credits / 15 HE creditsStudent thesis
Abstract [en]

            For a long time, fish is regarded as an important food source beneficial for human health. But there’s nowadays an increasing concern of fish consumption for increasing existence of mercury (Hg) and methylmercury (MeHg), which can be accumulated upon fish intake and pose health threats to human.  It is suggested that children and pregnant women are more vulnerable to effects due to accumulation of Hg. There have been continuous efforts done by governments and researchers all over the world, e.g. publishing national and regional advisories on fish consumption, in order to inform public related risks aroused by excess fish consumption. Sweden, as one of the earliest countries abandons the use of Hg (Regeringskansliet,, has published a national advisory on fish consumption for pregnant and breastfeeding women (Swedish National Food Agency, SLV, Hg level in edible fish organs is also limited for safe consumption.  In order to picture a better image of this, we investigated existed databases in Sweden on Hg levels in fish, fishery statistics, consumption data, and observed Hg level in human in recent decades for human exposure to Hg in Sweden. Though mercury emission decreased, the exposure to mercury via fish consumption is still high. We believe there’s a potential risk for Swedish inhabitants, especially pregnant women and women in breastfeeding, as well as young children. It is strongly recommended a safer limit of Hg in fish products for consumption in Sweden.

            We hope for more synthesized knowledge of safe fish consumption that benefit for the public and promote regional/national policy in having an up-to-date fish consumption advisory in Sweden.

Place, publisher, year, edition, pages
2012. , 19 p.
Keyword [en]
methylmercury, fish consumption, environmental health
National Category
Environmental Sciences
URN: urn:nbn:se:uu:diva-179112OAI: diva2:543414
External cooperation
Mark-Vatten-Miljöcentrum, SLU
2012-04-19, Ekoln, Mark-Vatten-Miljöcentrum, SLU, Intendentur Mark-Vatten-Miljöcentrum, 750 07, Uppsala, 15:00 (English)
Life Earth Science
Available from: 2012-09-27 Created: 2012-08-07 Last updated: 2012-09-27Bibliographically approved

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