In fish, polluted water is the main cause of dioxin contamination while animals are mostly exposed to dioxins through the air.
Methods The analytical methodology for determining dioxin and PCB concentrations in cows ' milk has already been reported 15.
The other UK EfW plants have recorded similar low dioxin emission levels - equivalent to existing, background dioxin levels in urban soils.
Some highly toxic dioxin is also formed despite careful control of the flue gas temperatures.
The combined dioxin and PCB concentrations were in the range 2.5 - 6.1 ng TEQ/kg milk fat.