English Abstract This report presents the results of the monitoring of
dioxins in cow's milk from selected dairy farms. These dairy farms are
located near the municipal waste incinerator (MWI) of Rotterdam (the
Lickebaert area), the Netherlands. Levels are expressed in picograms
2,3,7,8-TCDD toxicity equivalents (TEQ) per gram of milk fat, calculated on
the basis of international toxicity equivalence factors (I-TEF) of
individual congeners. In this report the monthly course of the dioxin
levels in the Lickebaert area is presented for the months October to
December 1992. In the Lickebaert area, dioxin levels continued to fluctuate
significantly. The increase of the dioxin levels observed in the preceding
period from July on, has apparently reached a maximum in September 1992 at a
level of 8.9-13.3 pg TEQ/G of fat. However, the dioxin levels in the milk
samples from the months October to December 1992 ranged between 6.7 and
10.9 pg TEQ/g of fat and therefore still exceed the Dutch legislation level
for dioxins in cow's milk.
