Evaluatie van de dioxine-emissies van de afvalverbrandingsinstallatie in Alkmaar

Abstract

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The results of the emission measurements at the municipal solid waste incinerator (MWI) in Alkmaar show that during this period the Directive 'Incineration 1989' has been exceeded. The measured emission of chlorinated dioxins and furans from this installation has to be considered as an average value for this type of installation. The yearly emission of these compounds is estimated to be 21 g TEQ/year. According to dispersion model calculations this emission contributes considerably to the yearly mean deposition in the direct surroundings, viz. on average 7 (6-10) ng TEQ/m2. year) on an area of 20 x 20 km2 and a maximum of 33 (29-45) ng TEQ/m2. year) at 2,500 m North-east of the installation. At this moment there is still a lack of knowledge about further behaviour, deposition, uptake and fate in the cow, which makes it impossible to calculate the concentration in the milk of cows in the vicinity of a MWI. However a calculation model is in a developing stage and probably an empirical relation will also offer some possibilities.