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Cadmium and mercury exposure over time in children in southern Sweden (1986 – 2013)
Executive, Universitet, Lunds universitet, LU, Lunds universitet, institutionen för laboratoriemedicin, avdelningen för arbets- och miljömedicin, AMM.
Executive, Universitet, Lunds universitet, LU, Lunds universitet, institutionen för laboratoriemedicin, avdelningen för arbets- och miljömedicin, AMM.
Executive, Universitet, Lunds universitet, LU, Lunds universitet, institutionen för laboratoriemedicin, avdelningen för arbets- och miljömedicin, AMM.
Executive, Universitet, Lunds universitet, LU, Lunds universitet, institutionen för laboratoriemedicin, avdelningen för arbets- och miljömedicin, AMM. Executive, Universitet, Karolinska institutet, Karolinska institutet, institutet för miljömedicin, IMM.
Responsible organisation
2016 (English)Report (Other academic)
Abstract [en]

The variation in exposure to toxic metals over time is still not well-characterized, especially in children, the most vulnerable group. The aim of this study was to evaluate whether a reduction in environmental pollution with cadmium (Cd) and mercury (Hg) caused a change in exposure over time in two Swedish cities. For this, 1,257 children between the ages of 4 and 9 from Landskrona and Trelleborg, in the south of Sweden, were sampled once during 1986-2013. Cd (n=1120) and Hg (n=560) concentrations were determined in blood (b-Cd, b-Hg). The median b-Cd was 0.10 (geometric mean 0.10; range 0.01-0.61) μg/L and b-Hg was 0.91 (geometric mean 0.83; range 0.02-8.2) μg/L.

No sex or age difference was seen in b-Cd or b-Hg. Regarding the cities, children living in Landskrona close to a smelter had higher b-Cd and b-Hg than those living in urban and rural areas. Over the studied time, b-Cd slightly decreased (0.7% per year, p<0.001) while b-Hg showed a marked decrease (3% per year, p<0.001).

In conclusion, exposure to Cd was low during the ages 4 to 9, but the risk of disease might increase later in life since b-Cd only showed a minor decrease over time. This indicates, that Cd pollution should be further restricted. Regarding Hg, b-Hg concentration in children was low and decreased over time. The decrease is probably due to the reduced use of dental amalgam and the lower Hg intake from fish.

Place, publisher, year, edition, pages
Lund: Lunds universitet , 2016. , 15 p.
National Category
Environmental Sciences
Research subject
Health, Biologiska mätdata - metaller; Environmental Objectives, A Non-Toxic Environment; Finance, National
Identifiers
URN: urn:nbn:se:naturvardsverket:diva-6709OAI: oai:DiVA.org:naturvardsverket-6709DiVA: diva2:967690
Available from: 2016-09-09 Created: 2016-09-09 Last updated: 2016-09-09

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Lunds universitet, institutionen för laboratoriemedicin, avdelningen för arbets- och miljömedicin, AMMKarolinska institutet, institutet för miljömedicin, IMM
Environmental Sciences

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