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Series / Report no.
Open Access
Type
Report
Language
nl
Date
1998-02-28
Research Projects
Organizational Units
Journal Issue
Title
Dioxinen in koemelk van
Uiterwaarden
Translated Title
Dioxines in cow's milk of river forelands in the
Netherlands
Published in
Abstract
Betreft resultaten over metingen die zijn uitgevoerd in
dertien maandgemiddelde monsters uit juli 1993. De monsters werden
verzameld van melkveebedrijven waarvan een substantieel deel van het
melkgevend rundvee in de Uiterwaarden had gegraasd. De betrokken bedrijven
waren bovendien geselecteerd in benedenstroomse gebieden waar een verhoogde
belasting van de bodem met slibafzettingen werd verwacht. De studie toont
dat de dioxinegehalten in de onderzochte koemelk van Uiterwaarden goed
overeenkomen met waargenomen dioxinegehalten in koemelk van melkveebedrijven
gesitueerd in relatief onbelaste locaties. Het gemiddelde dioxinegehalte
van 1.8 pg (i)-TEQ/g vet was vergelijkbaar met landelijke
achtergrondwaarden en de individuele waarde (range: 1.0-3.4 pg (i)-TEQ/g
vet) lagen ruim beneden de warenwetnorm van 6 pg (i)-TEQ/g
vet.
Results are presented of measurements which have been carried out in thirteen monthly averaged samples collected in July 1993. The samples were taken at individual farms of which a substantial part of its lactating cattle had been grazing in the river forelands. In addition, the respective farms were chosen in downstream areas for which an elevated load with sludge deposits was expected. The study shows a good agreement between the dioxin levels in the cow's milk samples investigated with those reported for samples of individual dairy farms located in background areas. The mean dioxin level of 1.8 pg (i)-TEQ/g fat appeared to be comparable with national background levels and individual values (range: 1.0-3.4 pg (i)-TEQ/g fat) were far below the Dutch standard of 6 pg (i)-TEQ/g fat for dioxins in cow milk.
Results are presented of measurements which have been carried out in thirteen monthly averaged samples collected in July 1993. The samples were taken at individual farms of which a substantial part of its lactating cattle had been grazing in the river forelands. In addition, the respective farms were chosen in downstream areas for which an elevated load with sludge deposits was expected. The study shows a good agreement between the dioxin levels in the cow's milk samples investigated with those reported for samples of individual dairy farms located in background areas. The mean dioxin level of 1.8 pg (i)-TEQ/g fat appeared to be comparable with national background levels and individual values (range: 1.0-3.4 pg (i)-TEQ/g fat) were far below the Dutch standard of 6 pg (i)-TEQ/g fat for dioxins in cow milk.
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DGM/SVS