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    Onderzoek naar dioxineconcentraties in de bodem als gevolg van de uitstoot van een aluminiumsmelterij

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    Authors
    Liem AKD
    Mennen MG
    Fortezza F
    Groenemeijer GS
    Hartog RS den
    Type
    Report
    Language
    nl
    
    Metadata
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    Title
    Onderzoek naar dioxineconcentraties in de bodem als gevolg van de uitstoot van een aluminiumsmelterij
    Translated Title
    Determination of dioxin concentrations in soil as a result of emissions from an aluminium-smelting works
    Publiekssamenvatting
    In de omgeving van de BV Aluminiumsmelterij FHS te Dedemsvaart zijn op negen locaties concentraties van dioxinen in de toplaag van de bodem gemeten. Aanleiding van dit onderzoek was ongerustheid bij de bewoners van de naburig gelegen dorpsgemeenschap Drogteropslagen over een mogelijk verband tussen de uitstoot van dioxinen door deze aluminiumsmelterij en een verhoogd voorkomen van kanker in de dorpsgemeenschap. De gemeten dioxine concentraties varieerden van 1,5 tot 5,0 ng I-TEQ/kg d.s., met een gemiddelde van 3,0 en een spreiding van 1,2 ng I-TEQ/kg d.s. Dit gemiddelde verschilde niet significant van de gemiddelde achtergrondconcentratie in de regio, welke in een eerder onderzoek was bepaald op 3,1+-0,7 ng I-TEQ/kg d.s. Deze meetgegevens en ook berekeningen met een verspreidingsmodel op basis van gegevens over de emissies van het bedrijf over de afgelopen 25 jaar toonden aan de uitstoot van de aluminiumsmelterij geen significante bijdrage levert aan de achtergrondconcentratie van dioxinen in de bodem.
    A study to measure dioxin concentrations was prompted by the concern expressed by residents in the village of Drogteropslagen, located near the aluminium-smelting works. The villagers feared a possible relationship between dioxin emissions from the smelting works and increased cancer occurrence in the village. Dioxin concentrations in the top layer of the soil were measured at nine sites around the FHS aluminium-smelting works, located in nearby Dedemsvaart. The measured dioxin concentrations were found to vary from 1.5 to 5.0 ng I-TEQ/kg d.w., with an average of 3.0 ng I-TEQ/kg d.w and a standard deviation of 1.2 ng I-TEQ/kg d.w. The average measured concentration did not differ significantly from the average background concentration in the area, which had been determined in a previous study to be 3.1+-0.7 ng I-TEQ/kg d.w. Both the measurements and calculations using an air pollution dispersion model and emissions from the smelting works during the past 25 years showed a non-significant contribution of the emissions from the aluminium-smelting works to the dioxin concentrations in the soil.
    Sponsors
    Provincie Overijssel Provincie Drenthe Gemeente De Wolden Gemeente Avereest
    URI
    http://hdl.handle.net/10029/260831
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