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    Assessment of air quality for arsenic, cadmium, mercury and nickel in the Netherlands

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    Authors
    Buijsman E
    Type
    Report
    Language
    en
    
    Metadata
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    Title
    Assessment of air quality for arsenic, cadmium, mercury and nickel in the Netherlands
    Translated Title
    Assessment van de luchtkwaliteit voor arseen, cadmium, kwik en nikkel Nederland
    Publiekssamenvatting
    Het voorkomen van arseen, cadmium, kiwk en nikkel in lucht in Nederland is onderzocht. Op basis van bestaande meetgegevens, een beperkte meetinspanning en de resultaten van modelberekeningen is het mogelijk gebleken om een realistisch beeld te krijgen van de luchtkwaliteit in Nederland voor deze stoffen. Achtergrondconcentraties van arseen, cadmium en nikkel, zoals afgeleid uit metingen, bedragen resp. 0.6-1.1 ng m-3, 0.2-0.4 ng m-3 en 2.0-2.5 ng m-3. Kwikconcentraties, afgeleid uit modelberekeningen, zijn 2-3 ng m-3. Verhoogde cadmiumconcentraties zijn waargenomen nabij de Hoogovens en in het Rijnmondgebied. In het Rijnmondgebied zijn ook de nikkelniveaus verhoogd; meetresultaten in dit gebied zijn goed in overeenstemming met de uitkomsten van modelberekeningen. Alle waargenomen niveaus blijven onder de luchtkwaliteitdoelstellingen met uitzondering van cadmium en nikkel waarvoor de het niveau van het Verwaarloosbaar Risico lokaal wordt overschreden.
    The presence of arsenic, cadmium, mercury and nickel in air in the Netherlands has been investigated. Using measurement data, a limited supplemental monitoring effort and the results of modelling calculations, it has been possible to obtain a realistic picture of air quality in the Netherlands with respect to these substances. Background concentrations of arsenic, cadmium and nickel as derived from measurement results range from 0.6-1.1 ng m-3, 0.2-0.4 ng m-3 and 2.0-2.5 ng m-3, respectively. Air quality figures for mercury as derived from model calculations are 2-3 ng m-3. Increased cadmium concentration levels in industrial areas were observed near the Hoogovens (Steelworks) and in the Rijnmond industrial area. Nickel levels increased in the Rijnmond area and were shown to be in good agreement with model calculations. All levels were usually found to be within the air quality objectives. Exceptions here are cadmium and nickel, for which the Negligible Risk levels are locally exceeded in comparing these levels to air quality objectives.
    Sponsors
    DGM-Directie lucht en Energie
    URI
    http://hdl.handle.net/10029/259759
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