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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Reference
Endpoint:
toxicity to aquatic algae and cyanobacteria
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:

Description of key information

 White phosphorus is of limited water solubility (3 mg/L) and the solubilised substance is rapidly oxidised to phosphate. It is well documented that phosphates are critical nutrients required for the growth of algae and other aquatic plants.

Key value for chemical safety assessment

Additional information

No data are available: a waiver is proposed for this endpoint. White phosphorus is of limited water solubility (3 mg/L) and the solubilised substance is rapidly oxidised to phosphate. It is well documented that phosphates are critical nutrients required for the growth of algae and other aquatic plants. Low aquatic concentrations of phosphate resulting from white phosphorus will stimulate the growth of algae. Higher concentrations of phosphate are unlikely to be achieved due to the low water solubility of white phosphorus, but have the potential to cause adverse effects as a consequence of the stimulation of excessive algal growth and subsequent eutrophication.