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Description of key information

Short description of key information on bioaccumulation potential result: 
A limited toxicokinetic assessment based on available physico/chemical properties of phosphoric acid indicates oral and dermal absorption factors of 50 to 100% and an inhalation absorption factor of 100%. Phosphoric acid is furthermore not considered to have bioaccumulative potential. Two supporting metabolism studies are available (Bonting, 1952 and 1956).

Key value for chemical safety assessment

Additional information

A limited toxicokinetic assessment based on available physico/chemical data indicates oral and dermal absorption factors of 50 to 100% and an inhalation absorption factor of 100%. Wide distribution throughout the body is to be expected and excretion will be predominanly via urine. Two supporting studies show increased phosphorus retention in bone and increased urinary phosphorus excretion after prolonged dietary administration of phosphoric acid and support the initial toxicokinetic assessment.

Phosphoric acid is furthermore not considered to have bioaccumulative potential as it is highly soluble in water and phosphate levels in the body are regulated via homeostasis.