Image from http://ust.is/library/Skrar/Atvinnulif/Mengandi-starfsemi/Fluor-Reydarfirdi/Fluormaeling_juni_2_2014.pdf. Number in circles shows the concentration.
The reference value for livestock fodder is 40 µg/g, but as can be seen from the figure, the values are higher in several areas outside the dilution area (yellow line).
Hopefully the aluminum smelter can find ways to reduce this pollution soon.
