Aluminium Oxides - Exposure

Aluminum occurs in the form of aluminum ions (Al3+) as a natural constituent in drinking water and other foods, especially in fruit and vegetables. It is taken up mainly via the food.

The element aluminum is found naturally in the earth's crust (about 8,1 g/kg soil), and various aluminum compounds are components of soils and rocks. For nanoscale Al2O3 particles, there are no measured values for actual environmental concentrations.

Aluminum oxide particles agglomerate strongly. The accumulations or clusters of particles formed that way are little toxic to cells.

Very high doses of inhaled aluminiumhydroxide (AlOOH or boehmite) cause signs of inflammation in the lungs of test animals.


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