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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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one publication added to basket [74895]
Methylmercury production in the marine water column Topping, G.; Davies, I.M. (1981). Methylmercury production in the marine water column. Nature (Lond.) 290(5803): 243-244 In: Nature: International Weekly Journal of Science. Nature Publishing Group: London. ISSN 0028-0836; e-ISSN 1476-4687, meer

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Trefwoorden

Chemical compounds > Organic compounds > Organometallic compounds > Methyl mercury Chemistry > Geochemistry > Sediment chemistry Cycles > Chemical cycles > Geochemical cycle > Biogeochemical cycle Food webs > Food chains Health and safety > Public health Layers > Water column Wastes > Industrial wastes Marien/Kust

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Topping, G. Davies, I.M., meer

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Abstract

Although the biosynthesis of methylmercury in sediments is well established, this is not necessarily the exclusive natural source of methylmercury entering the marine food chain, particularly commercial fish and shellfish species for human consumption. An examination of mercury levels in freshwater fish, collected from a lake with a history of industrial mercury contamination, suggested that levels in fish are controlled in part by mercury in suspension and it followed that methylation should occur in the water column. Although methylmercury is present in seawater in coastal areas receiving discharges of waste containing either inorganic mercury or methylmercury there is no evidence that methylmercury is actually formed in the water column. The authors present data which demonstrate that inorganic mercury can be methylated in the water column and compare this production with that known to occur in marine sediments.

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