This soil analysis that was collected on 2013-03-14 at Ericeira, Mafra, Portugal, that showed a presence of:
Aluminum: 3,1g/Kg Barium: 14 mg/Kg Zinc: 20 mg/Kg
The person submitting this soil test asked for the reference values for the soil, specially of the Aluminum, and the reply was that they may vary due to various aspects and factors, but despite of it's almost impossible to be naturally present in those amounts, surely will be differences from the natural and the contaminated Al, as one will be pure and the other compound, and he say we can take from there, besides that these values coincide with the materials used in geoengineering.
